The document contains code for multiple Java classes and programs related to GUI development and basic math/logic operations. It defines classes for creating calculator interfaces with buttons, text fields, and frames. It also includes classes demonstrating inheritance, abstract classes, exceptions, input/output, and basic math functions like addition, subtraction, and multiplication.

1. class AB
{
public static void main(String args[])
{
int a = 5;
int b = 2;
int p;
int r;
r = a * b;
p = a ++ b;
System.out.println(" result is= " + r);
System.out.println(" result is= " + p );
System.out.println(" result is= " + (a - b) );
}
}
class AB12
{
public static void main(String args[])
{
int a = 5;
int b = 2;
int p;
int r;
r = a * b;
p = a + b;
System.out.println(" result is= " + r);
System.out.println(" result is= " + p );
System.out.println(" result is= " + (a - b) );
}
}
import javax.swing.*;
abstract class person
{
abstract void speak();
}
class tea extends person
{
void speak()
{
JOptionPane.showMessageDialog(null, " Teacher");
System.out.println("Teacher");
}

2. }
class st extends person
{
void speak()
{
JOptionPane.showMessageDialog(null, "Student");
System.out.println("Student");
}
}
class doc extends person
{
void speak()
{
JOptionPane.showMessageDialog(null, " Doctor");
System.out.println("Doctor");
}
}
class abst00
{
public static void main(String app[])
{
person r;
r = new tea();
r.speak();
r = new st();
r.speak();
r = new doc();
r.speak();
}
}
class A
{
private int a;
int b;
void set(int p)
{
a = p;
}
void show()
{
System.out.println("a ,b , is = " +" " + a );
System.out.println("a ,b , is = " +" " + b );
}

3. }
class Acc
{
public static void main (String app[])
{
A ob = new A();
ob.b = 6;
ob.set(6);
ob.show(); // without show programm will not run
}
}
class object
{
public int a;
public int b;
private int c;
void show()
{
System.out.println("a is = " + a);
System.out.println("b is = " + b);
System.out.println("c is = " + c);
}
void set(int p)
{
c = p;
}
}
class ACC0
{
public static void main(String app[])
{
object ob = new object();
ob.a = 2;
ob.b = 3;
//sob.c = 5; will produce error
ob.set(4);
ob.show();
}
}
class object
{
private int a;

4. int b;
void show()
{
System.out.println("A IS = " + a);
System.out.println("B IS = " + b);
}
void set(int p)
{
a= p ;
}
}
class acc1
{
public static void main(String app[])
{
object ob = new object();
ob.b = 7;// if ob.show is 1st then error = A is = 0, B is = 7
ob.set(77);
ob.show();
}
}
class A
{
int a;
int b;
private void show()
{
System.out.println(" Value of A and B is = " + a + " , " + b);
}
void callshow()
{
show();
}
}
class acc2
{
public static void main(String app[])
{
A ob = new A();
ob.a = 2;
ob.b = 3;
ob. callshow();// call or show k darmian space nhi honi hai
}

5. }
class A
{
int a;
int b;
private int c;
private void show()
{
System.out.println("Value of A, B, C is = " + a + " , " + b + " , " + c);
}
void c(int p)
{
c = p;
}
void callshow()
{
show();
}
}
class acc3
{
public static void main(String app[])
{
A ob = new A();
ob.a = 2;
ob.b = 3;
ob.c(4);
ob.callshow();
}
}
class acce
{
int a;
int b;
private int c;
void show()
{
System.out.println(" Value of a = " + a );
System.out.println(" Value of b = " + b );
System.out.println(" Value of c = " + c );
}
void set(int p) // space b/w int and p

6. {
c = p;
}
private void sum() // void is necessory
{
System.out.println(" Sum of a,b,c is = " + ( a + b + c ) );
}
void meth()
{
sum();// comass are necessory
}
}
class acc4
{
public static void main(String app[])
{
acce ob = new acce();
ob.a = 2;
ob.b = 3;
ob.set(4);
ob.show();
ob.meth();
}
}
import java.awt.Graphics;
import java.awt.Font;
import java.awt.Color;
public class App extends Applet
{
Font f = new Font("TimesRoman",Font.BOLD,36);
public void paint(Graphics g) {
g.setFont(f);
g.setColor(Color.red);
g.drawString("Hello again", 5, 50);
}
}
import java.awt.*;
import java.applet.*;
public class Applet1 extends Applet
{
public void paint(graphics g)

7. {
g.drawString("A Simple Applet" , 20, 20);
}
}
import javax.swing.*;
class az
{
public static void main(String args[])
{
int a;
String in;
in = JOptionPane.showInputDialog("Enter the number");
a = Integer.parseInt(in);
if(a%2==0)
System.out.println("The square is :" + a * a);
}
}
class math
{
int a,b;
void cal()
{
String in;
in=JOptionPane.showInputDialog("Enter a=");
a=Integer.pasreInt(in);
in=JOptionPane.showInputDialog("Enter b=");
b=Integer.parseInt(in);
}
}
class add extends math
{
void cal()
{
JOptionPane.showMessageDialog("sum="+(a+b));
}
}
class minus extends add
{
void cal{
JOptionPane.showMessageDialog("minus="+(a-b));
}
}

8. class multiply extends minus
{
void cal{
JOptionPane.showMessageDialog("multipl="+(a*b))
}
class cr
{
public static void main(String args[])
{
math ob=new math();
ob.cal();
}
}
class abc
{
JFrame f;
JButton b;
void cal()
{
f=new JFrame();
Container c=f.getContentPane();
c.setLayout(new FlowLayout());
b=new JButton("OK");
c.add(b);
f.setSize(200,200);
f.setVisible(true);
f.setResizable(false);
}
}
class GUI17
{
public static void main(String asd[])
{
abc ob=new abc();
ob.cal();
}
}
class Ex
{
public static void main(String []a)
{

9. int c =2;
int d=0;
try
{
System.out.println("show="+(c/d));
}
catch(arithmaticException e)
{
System.out.println("show error");
}
}
}
import javax.swing.*;
class f
{
public static void main(String args[])
{
int a;
int b;
int s;
String in;
in = JOptionpane.showInputDialog("Enter the number a=")
a = Integer.IarseInt(in);
in = JOptionpane.showInputDialog("Enter the number b=")
b = Integer.parseInt(in);
s = a + b;
System.out.println("sum = " + s);
}
}
import javax.swing.*;
class fd
{
public static void main(String args[])
{
int a;
int c;
String in;
in = JOptionPane.showInputDialog("enter any number:");
a = Integer.parseInt(in);
for(c = 1;c<=10;c++);

10. {
System.out.println(a + "*" + c + "=" + a*c);
}
}
}
class four
{
public static void main(String args[])
{
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int s;
int mul;
s = a + b;
mul = c * d;
System.out.println("SUM IS " + s);
System.out.println("MUL IS " + mul);
}
}
class fun
{
public static void main(String app[])
{
int a,b,c,d = 1;
System.out.println(" * * *");
System.out.println(" * 0 0 *");
System.out.println(" * *");
for(a=1;a<2;a++)
{
System.out.println(" * ---- *");
}
System.out.println(" * * *");
for(b=1;b<3;b++)
{
System.out.println(" * ");
}
System.out.println(" *** ***");
System.out.println(" * *");
System.out.println(" * *");
System.out.println(" * *");

11. for(c=1;c<6;c++)
{
System.out.println(" *********");
}
for(d=1;d<5;d++)
{
System.out.println(" * *");
}
System.out.println(" ** **");
}
}
import javax.swing.*;
class g
{
public static void main(String args[])
{
int a;
int b;
int s;
String in;
in = JOptionPane.showInputDialog("Enter a:");
a = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter b:");
b = Integer.parseInt(in);
s = a + b;
JOptionPane.showInputDialog(null,"sum="+s);
}
}
import java.awt.*;
import javax.swing.*;
class guit
{
JFrame f;
JButton b;
JButton b1;
JButton b2;
JButton b3;
JTextField t;
void creatgui()// no spacing
{
f = new JFrame();// ;
Container c = f.getContentPane();

12. c.setLayout(new FlowLayout());
t = new JTextField(20);//no spacing
t = new JTextField(20);
b = new JButton("Button");// no spacing
b1 = new JButton("Button1");
b2 = new JButton("Button2");
b3 = new JButton("+");
c.add(t);// small t instead T
c.add(b);
c.add(b1);
c.add(b2);
c.add(b3);
f.setSize(100,100);// no spacing
// see f and S
f.setVisible(true);
// see f and V
}
}
class GUI
{
public static void main(String app[])
{
guit g = new guit();
g.creatgui();// .
// no pass
}
}
import java.awt.*;
import javax.swing.*;
class guit
{
JFrame f;
JButton b;
JButton b1;
JButton b2;
JButton b3;
JTextField t;
void creatgui()// no spacing
{
f = new JFrame();// ;
Container c = f.getContentPane();
c.setLayout(new FlowLayout());

13. t = new JTextField(20);//no spacing
t = new JTextField(20);
b = new JButton("Button");// no spacing
b1 = new JButton("Button1");
b2 = new JButton("Button2");
b3 = new JButton("+");
c.add(t);// small t instead T
c.add(b);
c.add(b1);
c.add(b2);
c.add(b3);
f.setSize(100,100);// no spacing
// see f and S
f.setVisible(true);
// see f and V
}
}
class guit1 extends guit
{
void new()
{
JButton b4;
b4 = new JButton("B4");
c.add(b4);
}
}
class GUI1
{
public static void main(String app[])
{
guit g = new guit();
g.creatgui();// .
guit1 k = new guit1();
k.new();
k.creatgui();
// no pass
}
}
import javax.swing.*;
import java.awt.*;
class g

14. {
JLabel L;
JFrame F;
JButton B1,B2,B3,B4,B5,B6,B7,B8,B9,B10,B11,B12,B13,B14,B15,B16;
JTextField T;
void creat()
{
L=new JLabel("Calculator"); L.setForeground(Color.ORANGE);
L.setFont(new Font("Serif",Font.PLAIN,25));
F=new JFrame("Shahzad's Calculater"); F.setBackground(Color.PINK);
Container C=F.getContentPane();
C.setLayout(new BorderLayout());
JPanel P=new JPanel();
P.setLayout(new GridLayout(4,4,10,15));
P.setBackground(Color.BLACK);//pink
T=new JTextField(20); T.setFont(new Font("Serif",Font.PLAIN,25));
B1=new JButton("1"); B1.setBackground(Color.RED); B1.setForeground(Color.BLACK);
B2=new JButton("2"); B2.setBackground(Color.ORANGE); B2.setForeground(Color.WHITE);
B3=new JButton("3"); B3.setBackground(Color.ORANGE); B3.setForeground(Color.WHITE);
B4=new JButton("4"); B4.setBackground(Color.ORANGE); B4.setForeground(Color.WHITE);
B5=new JButton("5"); B5.setBackground(Color.RED); B5.setForeground(Color.WHITE);
B6=new JButton("6"); B6.setBackground(Color.ORANGE); B6.setForeground(Color.WHITE);
B7=new JButton("7"); B7.setBackground(Color.ORANGE); B7.setForeground(Color.WHITE);
B8=new JButton("8"); B8.setBackground(Color.ORANGE); B8.setForeground(Color.WHITE);
B9=new JButton("9"); B9.setBackground(Color.RED); B9.setForeground(Color.WHITE);
B10=new JButton("0"); B10.setBackground(Color.ORANGE); B10.setForeground(Color.WHITE);
B11=new JButton("c"); B11.setBackground(Color.ORANGE); B11.setForeground(Color.WHITE);
B12=new JButton("="); B12.setBackground(Color.ORANGE); B12.setForeground(Color.WHITE);
B13=new JButton("+"); B13.setBackground(Color.ORANGE); B13.setForeground(Color.WHITE);
B14=new JButton("-"); B14.setBackground(Color.ORANGE); B14.setForeground(Color.WHITE);
B15=new JButton("/"); B15.setBackground(Color.RED); B15.setForeground(Color.WHITE);
B16=new JButton("x"); B16.setBackground(Color.ORANGE); B16.setForeground(Color.WHITE);
P.add(B1);
P.add(B2);
P.add(B3);
P.add(B13);
P.add(B4);
P.add(B5);
P.add(B6);
P.add(B14);
P.add(B7);
P.add(B8);
P.add(B9);
P.add(B16);

15. P.add(B10);
P.add(B11);
P.add(B12);
P.add(B15);
C.add(T,BorderLayout.NORTH);
C.add(L,BorderLayout.SOUTH);
C.add(P,BorderLayout.CENTER);
F.setSize(400,400);
F.setVisible(true);
}
}
class GUI2
{
public static void main(String asd[])
{
g r=new g();
r.creat();
}
}
import java.awt.*;
import javax.swing.*;
class gui
{
JFrame f;
JButton b;
JTextField t;
void creat()
{
f = new JFrame();
Container c = f.getContentPane();//p Capital
c.setLayout(new FlowLayout());
t = new JTextField(10);
b = new JButton("BUTTON");
c.add(t);
c.add(b);
f.setSize(200,200);
f.setVisible(true);
}
}
class GUI3
{
public static void main(String app[])

16. {
gui g = new gui();
g.creat();
}
}
import java.awt.*;
import javax.swing.*;
class gui
{
void ggg()
{
JFrame f;
JButton b;
JButton b1;
JButton b2;
JTextField t;
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new GridLayout(2,1,200,200));
t = new JTextField(5);
b = new JButton("b");
b1 = new JButton("b1");
b2 = new JButton("b2");
c.add(t);
c.add(b);
c.add(b1);
c.add(b2);
f.setSize(100,100);
f.setVisible(true);
}
}
class GUI4
{
public static void main(String args[])
{
gui g = new gui();
g.ggg();
}
}
import java.awt.*;
import javax.swing.*;
class m

17. {
JFrame f;
JButton b; JButton b1; JButton b2; JButton b3; JButton b4; JButton b5; JButton b6; JButton b7; JButton
b8; JButton b9; JButton b10; JButton b11; JButton b12; JButton b13; JButton b14;
JTextField t;
void method()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new BorderLayout());
t = new JTextField(5);
b = new JButton("0");
b1 = new JButton ("1");
b2 = new JButton ("2");
b3 = new JButton ("3");
b4 = new JButton ("4");
b5 = new JButton ("5");
b6 = new JButton ("6");
b7 = new JButton ("7");
b8 = new JButton ("8");
b9 = new JButton ("9");
b10 = new JButton ("*");
b11 = new JButton ("/");
b12 = new JButton ("+");
b13 = new JButton ("-");
b14 = new JButton ("ReSet");
c.add(t, BorderLayout.NORTH);
c.add(b, BorderLayout.EAST);
c.add(b1, BorderLayout.WEST);
c.add(b2, BorderLayout.SOUTH);
c.add(b3, BorderLayout.CENTER);
c.add(b4, BorderLayout.EAST);
c.add(b5);
c.add(b6);
c.add(b7);
c.add(b8);
c.add(b9);
c.add(b10);
c.add(b11);
c.add(b12);
c.add(b13);
c.add(b14);
f.setSize(100,100);
f.setVisible(true);

18. }
}
class GUI5
{
public static void main(String args[])
{
m g = new m();
g.method();
}
}
import java.awt.*;
import javax.swing.*;
public class CalculatorGUI {
JFrame fCalc;
JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, b0;
JButton bPlus, bMinus, bMul, bPoint, bEqual, bClear;
JPanel pButtons;
JTextField tfAnswer;
JLabel lMyCalc;
public void initGUI ( ) { //used for setting layout of calculator
fCalc = new JFrame();
b0 = new JButton("0");
b1 = new JButton("1");
b2 = new JButton("2");
b3 = new JButton("3");
b4 = new JButton("4");
b5 = new JButton("5");
b6 = new JButton("6");
b7 = new JButton("7");
b8 = new JButton("8");
b9 = new JButton("9");
bPlus = new JButton("+");
bMinus = new JButton("-");
bMul = new JButton("*");
bPoint = new JButton(".");
bEqual = new JButton("=");
bClear = new JButton("C");
tfAnswer = new JTextField();
lMyCalc = new JLabel("My Clacualator");

19. //creating panel object and setting its layout
pButtons = new JPanel (new GridLayout(4,4));
//adding components (buttons) to panel
pButtons.add(b1);
pButtons.add(b2);
pButtons.add(b3);
pButtons.add(bClear);
pButtons.add(b4);
pButtons.add(b5);
pButtons.add(b6);
pButtons.add(bMul);
pButtons.add(b7);
pButtons.add(b8);
pButtons.add(b9);
pButtons.add(bMinus);
pButtons.add(b0);
pButtons.add(bPoint);
pButtons.add(bPlus);
pButtons.add(bEqual);
Container con = fCalc.getContentPane();
con.setLayout(new BorderLayout());
//adding components to container
con.add(tfAnswer, BorderLayout.NORTH);
con.add(lMyCalc, BorderLayout.SOUTH);
con.add(pButtons, BorderLayout.CENTER);
fCalc.setSize(300, 300);
fCalc.setVisible(true);
} // end of initGUI method
//default constructor
public CalculatorGUI ( ) {
initGUI();
}
//main method
class GUI6
{
public static void main(String args[ ])
{
CalculatorGUI calGUI = new CalculatorGUI();
}
}
import java.awt.*;
import javax.swing.*;
class gui

20. {
JFrame f;
JTextField t;
JButton b;
void gui()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new FlowLayout());
b = new JButton("Button");
t = new JTextField(10);
c.add(b);
c.add(t);
f.setSize(1,1);
f.setVisible(true);
}
}
class GUI7
{
public static void main (String app[])
{
gui p = new gui();
p.gui();
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class gui
{
JFrame f = new JFrame();
JTextField t = new JTextField(20);
JButton b = new JButton("B");
JButton b1 = new JButton("B1");
void g ()
{
Container c = f.getContentPane();
c.setLayout(new FlowLayout());
c.add(t);
c.add(b);
c.add(b1);
t.setBounds(10,10,10,10);
b.setBounds(10,10,10,10);

21. b1.setBounds(10,10,10,10);
f.setVisible(true);
f.setSize(100,100);
b.addActionListener(new bAct());
}
public class bAct implements ActionListener
{
public void actionPerformed(ActionEvent e)// public is necessory
{
String n = "1";
t.setText(n);
}
}
}
class GUI8
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();
}
}
import javax.swing.*;
import java.awt.*;
class gui
{
JFrame f;
JTextField t,t1,t2,t3,t4,t5,t6;
JButton b,b1,b2,b3;
void g()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new GridLayout(2,3));
t = new JTextField(10);
t1 = new JTextField(10);
t2 = new JTextField(10);
t3 = new JTextField(10);
t4 = new JTextField(10);
t5 = new JTextField(10);
t6 = new JTextField(10);
c.add(t);

22. c.add(t1);
c.add(t2);
c.add(t3);
c.add(t4);
c.add(t5);
c.add(t6);
b = new JButton("BUTTON");
b1 = new JButton("B1");
b2 = new JButton("b2");
b3 = new JButton("b3");
c.add(b1);
c.add(b2);
c.add(b3);
f.setSize(100,100);
f.setVisible(true);
}
}
class GUI9
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();
}
}
import javax.swing.*;// libraries
import java.awt.*;
class gui
{
JFrame f;
JButton b;
JButton b1;
JButton b2;
JButton b3;
JButton b4;
void g()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new BorderLayout());
b = new JButton("b");

23. b1 = new JButton("b1");
b2 = new JButton("b2");
b3 = new JButton("b3");
b4 = new JButton("b4");
c.add(b, BorderLayout.NORTH);
c.add(b1, BorderLayout.SOUTH);
c.add(b2, BorderLayout.EAST);
c.add(b3, BorderLayout.WEST);
c.add(b4, BorderLayout.CENTER);
f.setSize(100,100);
f.setVisible(true);
}
}
class GUI10
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class gui implements ActionListener
{
JFrame f=new JFrame();
JButton b1,b2,b3,b4;
JTextField t1,t2;
void gg()
{
Container c = f.getContentPane();
c.setLayout(new FlowLayout());
b1= new JButton("+");
b2= new JButton("-");
b3= new JButton("*");
b4= new JButton("%");
t1= new JTextField(20);
t2 = new JTextField(20);
c.add(t1);
c.add(t2);

24. c.add(b1);
c.add(b2);
c.add(b3);
c.add(b4);
f.setSize(400,400);
f.setVisible(true);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
Double x,y,z;
if (e.getSource()==b1)
{
x = Double.parseDouble(t1.getText() );
y = Double.parseDouble(t2.getText());
z = x+ y;
JOptionPane.showMessageDialog(null, "Ans" + z);
}
else if(e.getSource()==b2)
{
//2=t2.getText();
x = Double.parseDouble(t1.getText() );
y = Double.parseDouble(t2.getText());
z = x+ y;
JOptionPane.showMessageDialog(null, "Ans" + z);
}
else if(e.getSource()==b3)
{
x = Double.parseDouble(t1.getText() );
y = Double.parseDouble(t2.getText());
z = x+ y;
JOptionPane.showMessageDialog(null, "Ans" + z);
}
else if(e.getSource()==b4)
{
x = Double.parseDouble(t1.getText() );
y = Double.parseDouble(t2.getText());
z = x+ y;
JOptionPane.showMessageDialog(null, "Ans" + z);
}

25. }
}
class GUI11
{
public static void main(String app[])
{
gui ob = new gui();
ob.gg();
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class abc
{
String dis="";
char result;
double num1,num2;
JFrame f;
JLabel l=new JLabel("Calculator");
JTextField t;
JButton b1,b2,b3,b4,b5,b6,b7,b8,b9,b0,bp,bs,bm,bd,bc,beq;
abc()
{
f=new JFrame();
Container c=f.getContentPane();
c.setLayout(new BorderLayout());
t=new JTextField(10);
JPanel p=new JPanel(new GridLayout(4,4,2,2));
b1=new JButton("1");
b2=new JButton("2");
b3=new JButton("3");
b4=new JButton("4");
b5=new JButton("5");
b6=new JButton("6");
b7=new JButton("7");
b8=new JButton("8");
b9=new JButton("9");
b0=new JButton("0");
bp=new JButton("+");
bs=new JButton("-");
bm=new JButton("*");
bd=new JButton("/");

26. beq=new JButton("=");
bc=new JButton("c");
p.add(b1);
p.add(b2);
p.add(b3);
p.add(bp);
p.add(b4);
p.add(b5);
p.add(b6);
p.add(bs);
p.add(b7);
p.add(b8);
p.add(b9);
p.add(bm);
p.add(beq);
p.add(b0);
p.add(bc);
p.add(bd);
c.add(t,BorderLayout.NORTH);
c.add(p,BorderLayout.CENTER);
c.add(l,BorderLayout.SOUTH);
f.setSize(400,400);
f.setVisible(true);
//f.setResizable(false);
button1 ob1=new button1();
b1.addActionListener(ob1);
button2 ob2=new button2();
b2.addActionListener(ob2);
button3 ob3=new button3();
b3.addActionListener(ob3);
button4 ob4=new button4();
b4.addActionListener(ob4);
button5 ob5=new button5();
b5.addActionListener(ob5);
button6 ob6=new button6();
b6.addActionListener(ob6);
button7 ob7=new button7();
b7.addActionListener(ob7);
button8 ob8=new button8();
b8.addActionListener(ob8);
button9 ob9=new button9();
b9.addActionListener(ob9);
buttonp obp=new buttonp();
bp.addActionListener(obp);

27. buttons obs=new buttons();
bs.addActionListener(obs);
buttonm obm=new buttonm();
bm.addActionListener(obm);
buttond obd=new buttond();
bd.addActionListener(obd);
buttonc obc=new buttonc();
bc.addActionListener(obc);
buttoneq obeq=new buttoneq();
beq.addActionListener(obeq);
button0 ob0=new button0();
b0.addActionListener(ob0);
}
class button1 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"1");
}
}
class button2 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"2");
}
}
class button3 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"3");
}
}
class button4 implements ActionListener
{
public void actionPerformed(ActionEvent e)

28. {
t.setText("");
dis=t.getText();
t.setText(dis+"4");
}
}
class button5 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"5");
}
}
class button6 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"6");
}
}
class button7 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"7");
}
}
class button8 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"8");
}
}
class button9 implements ActionListener
{

29. public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"9");
}
}
class button0 implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
t.setText("");
dis=t.getText();
t.setText(dis+"0");
}
}
class buttonp implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
num1=Double.parseDouble(t.getText());
t.setText("+");
result='+';
}
}
class buttons implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
num1=Double.parseDouble(t.getText());
t.setText("-");
result='-';
}
}
class buttonm implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
num1=Double.parseDouble(t.getText());
t.setText("*");
result='*';
}

30. }
class buttond implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
num1=Double.parseDouble(t.getText());
t.setText("/");
result='/';
}
}
class buttoneq implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
num2=Double.parseDouble(t.getText());
if(result=='+')
{
num2=num1+num2;
t.setText(Double.toString(num2));
}
else if(result=='-')
{
num2=num1-num2;
t.setText(Double.toString(num2));
}
if(result=='*')
{
num2=num1*num2;
t.setText(Double.toString(num2));
}
if(result=='/')
{
num2=num1/num2;
t.setText(Double.toString(num2));
}
}
}
class buttonc implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
dis="";
num1=0;
num2=0;

31. t.setText("");
}
}
}
class GUI12
{
public static void main(String asd[])
{
abc obj=new abc();
}
}
import javax.swing.*;
import java.awt.*;
class gui
{
JFrame f;
JButton
b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b16,b17,b18,b19,b20,b21,b22,b23,b24,b25,b2
6,b27,b28,b29,b30,
b31,b32,b33,b34;
JTextField t,t1;
JPanel p,p1,p2;
void g()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new BorderLayout());
t=new JTextField(30);
t1 = new JTextField(30);
b0=new JButton("0");
b1=new JButton("1");
b2=new JButton("2");b2.setBackground(Color.BLUE);
b3=new JButton("3");
b4=new JButton("4");
b5=new JButton("5");
b6=new JButton("6");
b7=new JButton("7");
b8=new JButton("8");
b9=new JButton("9");
b10=new JButton("10");
b11=new JButton("11");
b12=new JButton("12");
b13=new JButton("13");

32. b14=new JButton("14");
b15=new JButton("15");
b16=new JButton("16");
b17=new JButton("17");
b18=new JButton("18");
b19=new JButton("19");
b20=new JButton("20");
b21=new JButton("21");
b22=new JButton("22");
b23=new JButton("23");
b24=new JButton("24");
b25=new JButton("25");
b26=new JButton("26");
b27=new JButton("27");
b28=new JButton("28");
b29=new JButton("29");
b30=new JButton("30");
b31=new JButton("31");
b32=new JButton("32");
b33=new JButton("33");
b34=new JButton("34");
p = new JPanel(new GridLayout(5,1,5,5));
p.setBackground(Color.RED);
p1 = new JPanel(new GridLayout(8,3,5,5));
p1.setBackground(Color.BLUE);
p2 = new JPanel(new GridLayout(3,5,5,5));
p2.setBackground(Color.GREEN);
p.add(b0);
p.add(b1);
p.add(b2);
p.add(b3);
p.add(b4);
p1.add(b5);
p1.add(b6);
p1.add(b7);
p1.add(b8);
p1.add(b9);
p1.add(b10);
p1.add(b11);
p1.add(b12);
p1.add(b13);
p1.add(b14);
p1.add(b21);
p1.add(b15);

33. p1.add(b16);
p1.add(b17);
p1.add(b18);
p1.add(b19);
p1.add(b20);
p1.add(b21);
p2.add(b22);
p2.add(b23);
p2.add(b24);
p2.add(b25);
p2.add(b26);
p2.add(b27);
p2.add(b28);
p2.add(b29);
p2.add(b30);
p2.add(b31);
p2.add(b32);
p2.add(b33);
p2.add(b34);
p.add(t);
p.add(t1);
c.add(t1,BorderLayout.SOUTH);
c.add(t,BorderLayout.NORTH);
c.add(p,BorderLayout.EAST);
c.add(p1,BorderLayout.WEST);
c.add(p2,BorderLayout.CENTER);
f.setSize(400,400);
f.setVisible(true);
}
}
class GUI13
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();
}
}
import javax.swing.*;
import java.awt.*;
class gui
{
JFrame f;

34. JButton b,b1,b2;
JTextField t,t1,t2,t3;
JPanel p,p1,p2,p3,p4;
void g()
{
f=new JFrame();
Container c = f.getContentPane();
c.setLayout(new BorderLayout());//Grid
b=new JButton("+");
b1=new JButton("-");
b2=new JButton("=");
t=new JTextField(30);
t1=new JTextField(30);
t2=new JTextField(30);
t3=new JTextField(30);
p=new JPanel(new GridLayout(1,1,5,5));
p.setBackground(Color.GREEN);
p1=new JPanel(new FlowLayout(500));
p2=new JPanel(new GridLayout());
p3=new JPanel(new GridLayout(1,1,5,5));
p4=new JPanel(new GridLayout(2,1,5,5));
p3.add(t3);
p.add(t);
p1.add(t1);
p2.add(t2);
p4.add(b);
p4.add(b1);
p4.add(b2);
c.add(t3, BorderLayout.NORTH);
c.add(t1, BorderLayout.WEST);
c.add(p4, BorderLayout.CENTER);
c.add(t2, BorderLayout.EAST);
c.add(t, BorderLayout.SOUTH);
f.setSize(400,400);
f.setVisible(true);
}
}
class GUI14
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();

35. }
}
import javax.swing.*;
import java.awt.*;
class gui
{
JFrame f;
JTextField t,t1;
JButton b,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15,b16,b17,b18;
JPanel p,p1;
void g()
{
Container c=f.getContentPane();//no space getContentPane
c.setLayout(new BorderLayout());//no space setLayout
t=new JTextField(10);
t1=new JTextField(5);
b=new JButton("0");
b1=new JButton("1");
b2=new JButton("2");
b3=new JButton("3");
b4=new JButton("4");
b5=new JButton("5");
b6=new JButton("6");
b7=new JButton("7");
b8=new JButton("8");
b9=new JButton("9");
b10=new JButton("10");
b11=new JButton("11");
b12=new JButton("12");
b13=new JButton("13");
b14=new JButton("14");
b15=new JButton("15");
b16=new JButton("16");
b17=new JButton("17");
b18=new JButton("18");
p=new JPanel(new GridLayout(1,1,2,2));
p1=new JPanel(new FlowLayout());
p.add(t);
p.add(t);
p1.add(b);
p1.add(b1);
p1.add(b2);

36. p1.add(b3);
p1.add(b4);
p1.add(b5);
p1.add(b6);
p1.add(b7);
p1.add(b8);
p1.add(b9);
p1.add(b10);
p1.add(b11);
p1.add(b12);
p1.add(b13);
p1.add(b14);
p1.add(b15);
p1.add(b16);
p1.add(b18);
c.add(p,BorderLayout.NORTH);
c.add(p1,BorderLayout.CENTER);
f.setSize(200,200);
f.setVisible(true);
}
}
class GUI15
{
public static void main(String app[])
{
gui ob = new gui();
ob.g();
}
}
import javax.swing.*;
import java.awt.*;
class gui
{
JFrame f;
JTextField t,t1;
JButton b,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15;
void g()
{
Container c=f.getContentPane();
c.setLayout(new GridLayout(4,4));
t = new JTextField(5);
t1 = new JTextField(5);
b = new JButton("0");

37. b1 = new JButton("1");
b2 = new JButton("2");
b3 = new JButton("3");
b4 = new JButton("4");
b5 = new JButton("5");
b6 = new JButton("6");
b7 = new JButton("7");
b8 = new JButton("8");
b9 = new JButton("9");
b10 = new JButton("/");
b11 = new JButton("+");
b12 = new JButton("-");
b13 = new JButton("*");
b14 = new JButton("=");
b15 = new JButton(".");
c.add(t);
c.add(t1);
c.add(b);
c.add(b1);
c.add(b2);
c.add(b3);
c.add(b4);
c.add(b5);
c.add(b6);
c.add(b7);
c.add(b8);
c.add(b9);
c.add(b10);
c.add(b11);
c.add(b12);
c.add(b13);
c.add(b14);
c.add(b15);
f.setSize(200,200);
f.setVisible(true);
}
}
class GUI16
{
public static void main(String app[]) //missing method body or declare abstract
{
gui ob = new gui();
ob.g();
}

38. }
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class abc
{
JFrame f;
JButton b;
void cal()
{
f=new JFrame();
Container c=f.getContentPane();
c.setLayout(new FlowLayout());
b=new JButton("Hello");
c.add(b);
f.setSize(200,200);
f.setVisible(true);
f.setResizable(false);
clsb ob=new clsb();
b.addActionListener(ob);
}
class clsb implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
JOptionPane.showMessageDialog(null,"Hello is processing");
}
}
}
class GUI17
{
public static void main(String asd[])
{
abc ob=new abc();
ob.cal();
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class gui

39. {
int i;
String n;
JFrame f;
JButton b;
JButton b1;
JTextField t;
void g()
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new FlowLayout());
b = new JButton("B");
b1 = new JButton("B1");
t = new JTextField(50);
c.add(t);
c.add(b);
c.add(b1);
f.setSize(200,200);
f.setVisible(true);
button ob = new button();//no words of "class" will be used 9mistakes
b.addActionListener(ob);
button1 ob1 = new button1();
b1.addActionListener(ob1);
}
class button implements ActionListener//mis ();
{
public void actionPerformed(ActionEvent a)//mis ;
{
t.setText("");
n=t.getText();
t.setText(n+"Hello");
}
}
class button1 implements ActionListener//no ();
{
public void actionPerformed(ActionEvent a)//mis ;
{
t.setText("");
n=t.getText();
for(i=0;i<5;i=i++)
{
t.setText(n+"G");
t.setText(i+"READ THIS");

40. JOptionPane.showMessageDialog(null,"TERI PAN DE");
JOptionPane.showMessageDialog(null,"BEGARAT, SALA");
JOptionPane.showMessageDialog(null,"PCS");
}
}
}
}
class GUI18
{
public static void main(String app[]) //mis ;
{
gui obj = new gui();
obj.g();
}
}
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class gui
{
String s;
JFrame f;
JButton
bc,b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10;
JTextField t;
void g() //MIS;
{
f = new JFrame();
Container c = f.getContentPane();
c.setLayout(new GridLayout(3,3,5,5));
bc=new JButton("C");
b0=new JButton("0");
b1=new JButton("1");
b2=new JButton("2");
b3=new JButton("3");
b4=new JButton("4");
b5=new JButton("5");
b6=new JButton("6");
b7=new JButton("7");
b8=new JButton("8");

41. b9=new JButton("9");
b10=new JButton("10");
t=new JTextField(20);
c.add(t);
c.add(bc);
c.add(b0);
c.add(b1);
c.add(b2);
c.add(b3);
c.add(b4);
c.add(b5);
c.add(b6);
c.add(b7);
c.add(b8);
c.add(b9);
c.add(b10);
f.setSize(200,200);
f.setVisible(true);
button0 ob00 = new button0();
b0.addActionListener(ob00);
button1 ob1 = new button1();
b1.addActionListener(ob1);
button2 ob2 = new button2();
b2.addActionListener(ob2);
button3 ob3 = new button3();
b3.addActionListener(ob3);
button4 ob4 = new button4();
b4.addActionListener(ob4);
button5 ob5 = new button5();
b5.addActionListener(ob5);
button6 ob6 = new button6();
b6.addActionListener(ob6);
button7 ob7 = new button7();
b7.addActionListener(ob7);
button8 ob8 = new button8();
b8.addActionListener(ob8);

42. button9 ob9 = new button9();
b9.addActionListener(ob9);
button10 ob10 = new button10();
b10.addActionListener(ob10);
button0 ob0 = new button0();
b0.addActionListener(ob0);
buttonc obc = new buttonc();
bc.addActionListener(obc);
}
//FOR "0"
class button0 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("0");
s = t.getText();
t.setText(s+"0");
}
}
// FOR "1"
class button1 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"1");
}
}
//FOR "2"
class button2 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"2");
}

43. }
//FOR "3"
class button3 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"3");
}
}
//FOR "4"
class button4 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"4");
}
}
//FOR "5"
class button5 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"5");
}
}
//FOR "6"
class button6 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");

44. s=t.getText();
t.setText(s+"6");
}
}
//FOR "7"
class button7 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"7");
}
}
//FOR "8"
class button8 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"8");
}
}
// FOR "9"
class button9 implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"9");
}
}
// FOR "10"
class button10 implements ActionListener
{

45. public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+"10");
}
}
// FOR "CLEAR"
class buttonc implements ActionListener
{
public void actionPerformed(ActionEvent a)
{
t.setText("");
s=t.getText();
t.setText(s+" ");
}
}
}
class GUI19
{
public static void main(String app[])
{
gui obj = new gui();
obj.g();
}
}
class pa
{
int a;
int b;
void show()
{
System.out.println("value of a = " + a);
System.out.println("value of b = " + b);
}
}
class ch extends pa
{
}
class in0
{
public static void main(String app[])

46. {
pa ob = new pa(); //(;) semicolon laganay hein
ob.a = 2; //other wise it will show (file not find)
ob.b = 3;
ob.show();
ch ob1 = new ch();
ob1.a = 4;
ob1.b = 5;
ob1.show();
}
}
class pa
{
int a;
int b;
int s;
int p;
void show()
{
System.out.println("value of a = " + a);
System.out.println("value of b = " + b);
s = a + b;
System.out.println("value of sum = " + s);
}
}
class chi extends pa
{
void mul()
{
p = a*b;
System.out.println("multi is :" + p);
}
}
class in1
{
public static void main(String app[])
{
pa ob = new pa();
ob.a = 2;
ob.b = 3;
ob.show();
chi ob1 = new chi();
ob1.a = 4;

47. ob1.b = 5;
ob1.show();
ob1.mul();
}
}
class pa
{
int a;
int b;
void show()
{
System.out.println("value of a = " + a);
System.out.println("value of b = " + b);
}
}
class ch extends pa
{
}
class inh
{
public static void main(String app[])
{
pa ob = new pa(); //(;) semicolon laganay hein
pa.a = 2; //other wise it will show (file not find)
pa.b = 3;
pa.show();
ch ob1 = new ch();
ob1.a = 4;
ob1.b = 5;
ob1.show();
}
}
class parant
{
int a;
int b;
int c;
void set()
{
System.out.println("value of a is = " + a);
System.out.println("value of b is = " + b);
System.out.println("value of c is = " + c);

48. }
int math() // ; will show miss method body
{
return a+b+c;
}
class child extends parant
{
}
}
class inh0
{
public static void main(String opps[])
{
parant ob = new parant();
parant ob1 = new parant();
ob.a = 2;
ob.b = 3;
ob.c = 4;
ob.set();
int e = ob.math();
System.out.println("
ob1.a = 5;
ob1.b = 6;
ob1.c = 7;
ob1.set();
ob1.math();
}
}
import javax.swing.*;
class inplus
{
public static void main(String app[])
{
int a;
int b;
int c;
int d;
int s;
String in;
in = JOptionPane.showInputDialog("Enter a=");
a = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter b=");
b = Integer.parseInt(in);

49. in = JOptionPane.showInputDialog("Enter c=");
c = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter d=");
d = Integer.parseInt(in);
s = a + b + c + d;
System.out.println("Sum of no is =" + s);
}
}
import javax.swing.*;
class input
{
public static void main(String app[])
{
int a;
int b;
int c;
String in;
in = JOptionPane.showInputDialog("Enter 1st no=");
a = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter 2nd no=");
b = Integer.parseInt(in);
c = a * b;
System.out.println("Multiplication is =" + c);
}
}
public interface person
{
void speak();
}
class teacher implements person // implement spellings
{
void speak()
{
System.out.println("Teacher");
}
}
class interface00
{
public static void main(String args[])
{
person p;
p = new person();

50. p.speak();
}
}
class A
{
int a;
int b;
void show()
{
System.out.println( a + b);
}
}
class B extends A
{
int c;
void showc()
{
System.out.println("c" + c);
}
}
class m
{
public static void main(String args[])
{
A ob1 = new A();
ob1.a = 5;
ob1.b = 6;
ob1.show();
B ob2 = new B();
ob2.a = 3;
ob2.b = 2;
ob2.c = 1;
ob2.show();
ob2.showc();
}
}
class box
{
double w;
double h;
double d;
double v;

51. void volume()
{
v = w*h*d;
System.out.println("Volume is:");
System.out.println(+ v);
}
}
class m0000
{
public static void main(String args[])
{
box mybox = new box();
box mybox1 = new box();
mybox.w = 10;
mybox.h = 7;
mybox.d = 5;
mybox1.h = 3;
mybox1.w = 4;
mybox1.d = 6;
mybox.volume();
mybox1.volume();
}
}
class box
{
int h;
int b;
int area()
{
return h*b;
}
int perimeter()
{
return 2*b+h;
}
}
class m000
{
public static void main(String app[])
{
box b1 = new box();
b1.h = 2;
b1.b = 3;

52. int a = b1.area();
box b2 = new box();
b2.h = 5;
b2.b = 2;
int c = b2.perimeter();
System.out.println("Area of box 1 = " + a);
System.out.println("Perimeter of box 2 = " + c);
}
}
class circle
{
int r;
void set()
{
System.out.println("R is = " + r);
}
double Calcarea()
{
return 3.14*r*r;
}
double Calccircum()
{
return 2*3.14*r;
}
}
class m00
{
public static void main(String app[])
{
circle ob1 = new circle();
circle ob2 = new circle();
ob1.r = 2;
ob2.r = 3;
ob1.set();
ob2.set();
double f = ob1.Calcarea();
double g = ob1.Calccircum();
System.out.println("Area of ob1 is = " + f);
System.out.println("circumference of ob1 is = " + g);
double d = ob2.Calcarea();
double e = ob2.Calccircum();

53. System.out.println("Area of ob2 is = " + d);
System.out.println("circumference of ob2 is = " + e);
System.out.println("new is = " + (e * 4));
}
}
class wq
{
double l;
double h;
double a;
double p;
void area()
{
a = l * h;
System.out.println("The area is:" + a);
}
void perimeter()
{
p = 2*l + 2*h;
System.out.println("Perimeter is:" + p);
}
}
class m0
{
public static void main(String args[])
{
wq obj = new wq();
obj.l = 10;
obj.h = 5;
obj.area();
obj.perimeter();
}
}
class object
{
int a,b,c;
void set()
{
a = 0;
b = 0;
c = 0;
}

54. int sum()
{
return a+b+c;
}
float avg()
{
return (a+b+c)/3;
}
}
class m1
{
public static void main(String app[])
{
object ob = new object();
object ob1 = new object();
object ob2 = new object();
object ob3 = new object();
ob.a = 5;
ob.b = 3;
ob.c = 4;
ob1.a = 5;
ob1.b = 6;
ob1.c = 7;
ob2.a = 1;
ob2.b = 2;
ob2.c = 3;
ob3.a = 4;
ob3.b = 5;
ob3.c = 6;
int s = ob.sum();
float z = ob.avg();
int t = ob1.sum();
int q = ob2.sum();
float r = ob3.avg();
System.out.println("Sum is = " + s);
System.out.println("Average is = " + z);
System.out.println("Sum of 2 is = " + t);
System.out.println("Sum of ob2 is =" + q);
System.out.println("Avg of ob3 is = " + r);
}
}
class object
{

55. int p,q;
void set()
{
p = q = 5;
}
void show()
{
System.out.println("Value of P is = " + p);
System.out.println("Value of Q is = " + q);
}
int sum()
{
return p+q;
}
}
class m3
{
public static void main(String app[])
{
object ob1 = new object();
ob1.p = 3;
ob1.q = 4;
ob1.show();
int a = ob1.sum();
System.out.println("Sum is = " + a);
}
}
class object
{
int a,b,c;
void set()
{
a = b = c = 0;
}
void show()
{
System.out.println("Value of a = " + a);
System.out.println("Value of b = " + b);
System.out.println("Value of c = " + c);
}
int sum()
{
return a+b+c;

56. }
int sub()
{
return a+b-c;
}
float div()
{
return (a+c)/b;
}
}
class m4
{
public static void main(String mango[])
{
object ob1 = new object();
object ob2 = new object();
object ob3 = new object();
ob1.a = 1;
ob1.b = 2;
ob1.c = 3;
ob2.a = 4;
ob2.b = 5;
ob2.c = 6;
ob3.a = 7;
ob3.b = 8;
ob3.c = 9;
ob1.show();
ob2.show();
ob3.show();
int d = ob1.sum();
int e = ob1.sub();
float f = ob1.div();
int g = ob2.sum();
int h = ob2.sub();
float i = ob2.div();
int j = ob3.sum();
int k = ob3.sub();
float l = ob3.div();
System.out.println("Sum of object 1 is = " + d);
System.out.println("Subtraction of object 1 is = " + e);
System.out.println("Division of object 1 is = " + f);
System.out.println("Sum of object 2 is = " + g);
System.out.println("Subtraction of object 2 is = " + h);
System.out.println("Division of object 2 is = " + i);

57. System.out.println("Sum of object 3 is = " + j);
System.out.println("Subtraction of object 3 is = " + k);
System.out.println("Division of object 3 is = " + l);
}
}
class object
{
double name,team;
String a,b;
void input()
{
a = "orange";
b = "mango";
}
void show()
{
a = "ABC";
b = "Super A+";
}
}
class m5
{
public static void main(String app[])
{
object pla = new object();
pla.input();
pla.show();
System.out.println("Player name is =" + pla.a);
}
}
class object
{
int height;
int width;
}
class m6
{
public static void main(String app[])
{
object ob1 = new object();
object ob2 = new object();

58. ob1.height = 2;
ob1.width = 3;
ob2.heigth = 4;
ob2.width = 5;
int a = (ob1.heigth)*(ob1.width);
int b = (ob2.heigth)*(ob2.width);
System.out.println("Object No 1 is = " + a);
System.out.println("Object No 2 is = " + b);
}
}
class object
{
int width;
int height;
int depth;
void vol()
{
System.out.prontln("volume is = ") ;
System.out.prontln(width* height *depth);
}
}
class m7
{
public static void main(String app[])
{
object ob1 = new object();
object ob2 = new object();
ob1.width = 2;
ob1.height = 3;
ob1.depth = 4;
ob2.width = 5;
ob2.height = 6;
ob2.depth = 7;
ob1.vol();
ob2.vol();
}
}
//pass by object
class object
{
int a;
int b;

59. void pbo(object p) //Creating an object of class type
{
p.a = p.a + 2;
p.b = p.b +3;
}
}
class m8
{
public static void main(String app[])
{
object ob1 = new object();
ob1.a = 2;
ob1.b = 3;
System.out.println("before calling value of ob1.a = " + ob1.a);
System.out.println("before calling value of ob1.b = " + ob1.b);
ob1.pbo(ob1);
/* p will be replaced by ob1
in method pbo*/
System.out.println("After calling value of ob1.a = "+ ob1.a);
System.out.println("After calling value of ob1.b = " + ob1.b);
}
}
// pass by value
class object
{
void pbv(int a, int b) // method with parameter in ()
{
a = a * 2;
b = b * 3; // Only formal parameter's value will be change
}
}
class m9
{
public static void main(String app[])
{
object ob1 = new object();
int c;
int d;
c = 4;
d = 5;
ob1.pbv(c,d);
/* calling the function pbv
and assigning the value of c, d to a, b */

60. System.out.println("value of c = " + c);
System.out.println("value of d = " + d);
}
}
class object
{
String name;
int roll;
char sex;
void set()
{
name = "Ali" ;
roll = 1 ;
sex = 'M';
}
void show() //No semicolon
{
System.out.println("Name is = " + name);
System.out.println("Roll No is = " + roll);
System.out.println("Sex is = " + sex);
}
}
class m10
{
public static void main (String app[])
{
object a = new object();
a.name = "ali"; // '' will replace ""
a.roll = 2; // write as it is instead of a.int roll = 2;
a.sex = 'M'; //"" will be replace with ''
a.show();
a.set();
a.show();
}
}
class object
{
int a;
int b;
int c;
void val()

61. {
System.out.println(" Values are = " + a + " and " + b );
}
void sum()
{
System.out.println(" result is= " + (a + b) );
}
int cal()
{
return a * b;
}
}
class m11
{
public static void main(String app[])
{
object ob = new object();
ob.a = 2;
ob.b = 3;
ob.val();
ob.a = 4;
ob.b = 5;
ob.sum();
ob.val();
int d = ob.cal();
System.out.println(" result is= " + d);
System.out.println(" result is= " + (ob.a + ob.b) );
}
}
class object
{
int a;
int b;
void pbo(object p)
{
p.a = p.a+2;
p.b = p.b+3;
}
}
class m12
{
public static void main(String app[])
{

62. object ob = new object();
ob.a = 4;
ob.b = 5;
System.out.println("Value of ob.a" + ob.a);
ob.pbo(ob);
System.out.println("Value of ob.a" + ob.a);
}
}
// pass by value
class object
{
void pbv(int a, int b)
{
a = a + 2;
System.out.println("Value of a is = " + a);
b = b + 3;
System.out.println("Value of b is = " + b);
}
}
class m13
{
public static void main (String app[])
{
object ob = new object();
int c = 4;
int d = 5;
ob.pbv(c,d);
System.out.println("Value of c is = " + c);
System.out.println("Value of d is = " + d);
}
}
// pass by value
class abc
{
void pbv(int a, int b, int c)
{
a = a + b + c;
System.out.println("Value of a is = " + a);
b = b + a;
System.out.println("Value of b is = " + b);
c = c + 2;
System.out.println("Value of c is = " + c);

63. System.out.println(" ");
}
}
class m14
{
public static void main (String app[])
{
abc ob = new abc();
int c = 3;
int d = 4;
int e = 5;
ob.pbv(c,d,e);
System.out.println(" ");
System.out.println("Actual Value of c is = " + c);
System.out.println("Actual Value of d is = " + d);
System.out.println("Actual Value of e is = " + e);
}
}
// pass by reference
class obj
{
int a;
int b;
void pbo( obj p)
{
p.a = a + 2;
p.b = b + 3;
}
}
class m15
{
public static void main (String app[])
{
obj ob = new obj();
ob.a = 4;
ob.b = 5;
// Before calling function
System.out.println("Value before call " + ob.a);
System.out.println("Value before call " + ob.b);
System.out.println(" ");
ob.pbo(ob);
System.out.println("Value after call " + ob.a);
System.out.println("Value after call " + ob.b);

64. }
}
// Acccess
class obj
{
int a;
int b;
private int c;
private void show()
{
System.out.println("Value of a is " + a);
System.out.println("Value of b is " + b);
System.out.println("Value of c is " + c);
}
void set(int p)
{
c = p;
}
void acc()
{
show();
}
}
class m16
{
public static void main (String app[])
{
obj ob = new obj();
ob.a = 2;
ob.b = 3;
ob.set(4);
ob.acc();
}
}
class abc
{
int a;
int b;
int c;
void set()
{
a = b = 0;

65. }
int set1(int p,int q)
{
a = p;
b = q;
int s;
s = a * b;
return s;
}
void multi()
//void multi()
{
c = a * b;
//c = a * b;
System.out.println("Multiplication is:" + c);
// System.out.println("Multiplication is:" + c);
}
}
class ma
{
public static void main(String args[])
{
//int ab;
abc obj = new abc(intp 4,intq5);
// obj.a = 10;
//obj.b = 10;
int d = obj.set1();
/* obj.multi();
ab=obj.set1(2,3);*/
System.out.println("Set1 is " + d); //System.out.println("Set1 is "+ ab);
}
}
import java.awt.*;
import javax.swing.*;
clas abc
{
JButton b;
JTextField t;
JFrame f;
void creat()
{
f = new JFrame("Shahzad;s Calculatetr");
Container c = f.getContentPane();

66. c.setLayout(new FlowLayout());
t = new JTextField(20);
b = new JButton("Pagal");
c.add(t);
C.add(b);
f.setSize(400,400);
F.setVisible(true);
}
}
clas main
{
public static void main(String args[])
{
abc obj = new abc();
obj.creat();
}
}
class wq
{
double l;
double h;
void area()
{
System.out.println("The area is:" + (l * h));
}
void perimeter()
{
System.out.println("Perimeter is:" + (2*l + 2*h));
}
double summ()
{
return l*h+h;
}
}
class main1
{
public static void main(String args[])
{
wq obj = new wq();
obj.l = 10;
obj.h = 5;
obj.area();

67. obj.perimeter();
double d = obj.summ();
System.out.println("Sum is = " + d);
}
}
import javax.swing.*;
class math
{
public static void main(String args[])
{
int a;
int c;
c = 1;
String in;
in = JOptionPane.showInputDialog("Enter the number:");
a = Integer.parseInt(in);
while(c<=10)
{
System.out.println(a + "*" + c + "=" + a*c);
c = c + 1;
}
}
}
class obje
{
int no1;
int no2;
obje(int n1, int n2)
{
no1 = n1;
no2 = n2;
System.out.println("value of 1st is = " + n1 + " " + n2);
}
obje(int n1)
{
System.out.println("value of 1st is = " + n1);
}
}
class ovecon
{
public static void main(String app[])
{

68. obje ob = new obje(2,3);
obje ob1 = new obje(4); // ob(object should be different
}
}
class obj
{
int a;
int b;
obj(int c, int d)
{
a = c;
b = d;
System.out.println("Value of c and d is = " + c + " " + d);
}
obj(int c)
{
System.out.println("Value of c is = " + c);
}
obj(int c, int d, int e)
{
System.out.println("Value of c, d and e is = " + c + " " + d + " " + e);
}
}
class ovecon1
{
public static void main(String app[])
{
obj ob1 = new obj(4);
obj ob = new obj(2,3);
obj ob2 = new obj(5,6,7);
}
}
class A
{
void show()
{
System.out.println("A");
}
}
class B extends A
{
void show()

69. {
System.out.println("B");
}
}
class C extends B
{
void show()
{
System.out.println("C");
}
}
class over
{
public static void main(String args[])
{
A r;
r = new A();
r.show();
r = new B();
r.show();
r = new C();
r.show();
}
}
class math
{
int a=10;
int b=20;
void call() // Duplicate method in every class
{
System.out.println("a , b is = " + a + " " + b);
}
}
class plus extends math
{
void call()
{
System.out.println("a + b is = " + (a + b));
}
}
class minus extends plus
{
void call()

70. {
System.out.println("a - b is = " + (a - b) );
}
}
class mul extends minus
{
void call()
{
System.out.println("a * b is = " + ( a * b));
}
}
class div extends mul
{
void call()
{
System.out.println("a / b is = " + (a / b));
}
}
class over1
{
public static void main(String args[])
{
math m;
m = new math();
m.call();
m = new plus();
m.call();
m = new minus();
m.call();
m = new mul();
m.call();
m = new div();
m.call();
}
}
iyyymport javax.swing.*;
class math
{
static a,b;
String s;
s=JOptionPane.showInputDialog("Enter a");
a=Integer.parseInt(s);
s=JOptionPane.showInputDialog("Enter b");

71. b=Integer.parseInt(s);
void cal()
{
System.out.println("A and B is = " + a + " " + b);
}
}
class plus extends math
{
void cal()
{
System.out.println("A and B is = " + (a + b));
}
}
class minus extends plus
{
void cal()
{
System.out.println("A and B is = " + (a - b));
}
}
class mul extends minus
{
void cal()
{
System.out.println("A and B is = " + (a * b));
}
}
class div extends mul
{
void cal()
{
System.out.println("A and B is = " + (a / b));
}
}
class over2
{
public static void main(String args[])
{
math r;
r = new math();
r.cal();
}
}

72. class A
{
void test(int a)
{
System.out.println("Value of a is = " + a);
}
void test(int a, int b)
{
System.out.println("Value of a and b is = " + a +" ," + b);
}
void test(int a, int b, int c)
{
System.out.println("Value of a, b ,c is = " + a + " , " + b +" , " + c );
}
}
class ovmeth
{
public static void main(String app[])
{
A ob = new A();// new or A mai space honi hai
ob.test(5, 6, 7);
ob.test(2);
ob.test(3, 4);
}
}
class obj
{
void meth()
{
System.out.println("No value ");
}
void meth(int a)
{
System.out.println("Value of a is = " + a);
}
void meth(int a, int b)
{
System.out.println("Value of a and b is = " + a + " " + b);
}
void meth(int a, int b, int c)
{
System.out.println("Value of a , b and c is = " + a + " " + b + " " + c);

73. }
}
class ovmeth1
{
public static void main(String app[])
{
obj ob = new obj();
ob.meth();
ob.meth(1);
ob.meth(2,3);
ob.meth(4,5,6);
}
}
class pa
{
int a;
int b;
int m;
void show()
{
int s;
s = a + b;
System.out.println("Sum is :" + s);
}
}
class child extends pa
{
void show()
{
m = a * b;
System.out.println("multiple is :" + m);
}
}
class parent
{
public static void main(String args[])
{
pa obj = new pa();
obj.a = 5;
obj.b = 5;
obj.show();
child obj1 = new child();
obj1.a = 4;

74. obj1.b = 4;
obj1.show();
}
}
import javax.swing.*;
class q
{
public static void main(String args[])
{
int a;
int b;
int s;
String in;
in = JOptionPane.showInputDialog("Enter the number 1:");
a = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter the number 2:");
b = Integer.parseInt(in);
s = a / b;
System.out.println("sum is:" + s);
}
}
import javax.swing.*;
class qw
{
public static void main(String args[])
{
int num;
String in;
in = JOptionPane.showInputDialog("Enter the number:");
num = Integer.parseInt(in);
if(num>=85)
System.out.println("Your grade is A+");
else if(num<=80 && num>75)
System.out.println("Yoyr grade is A");
else if(num<=70 && num>65)
System.out.println("Your grade is B");
else
System.out.println("Your are fail congrats");
}
}

75. class f
{
int fact(int n)
{
if (n==1)
{
return 1 ;
}
else
{
return n*fact(n-1);
}
}
}
class rec
{
public static void main(String app[])
{
f a = new f();
int r = a.fact(3);
System.out.println(r);
}
}
// recursion java program
class java
{
// here starts a function
int mul(int n)
{
if (n ==1)
{
return 1; // Body of method
}
else
{
return n*mul(n-1);
}
}
}
class rec1
{
public static void main (String app[])

76. {
java f = new java(); // creating a new object naming f
int a; // declare a variable a to store value of calling function
a = f.mul(3);
System.out.println("Factorial of no is = " + a);
}
}
class object
{
int fact(int n) // semicolon nhi lagna warna return mai error
{
if (n==10)
{
return 1;
}
else
{
return n+fact(n+1);
}
}
}
class rec2
{
public static void main(String app[])
{
object f = new object();
int a = f.fact(1);
System.out.println("Value of a is = " + a );
}
}
class obj
{
int fact(int n)
{
if(n==1)
{
return 1;
}
else
{
return n*fact(n-1);
}

77. }
}
class rec3
{
public static void main(String app[])
{
obj ob = new obj();
int c = ob.fact(4);
System.out.println("Value of C is = " + c);
}
}
class obj
{
int a;
int fact( int n)
{
if(n == 0)
{
return 1;
}
else
{
return a*a;
n-1;
}
}
}
class rec4
{
public static void main(String app[])
{
obj ob = new obj();
ob.a = 2;
int c = ob.fact(4);
System.out.println("Value of c ic = " + c);
}
}
class obj
{
int fact(int n) // no ;
{
if(n==1)

78. {
return 1;
}
else
{
return (n-1)*fact(n-1);
}
}
}
class rec5
{
public static void main(String app[])
{
obj ob = new obj();
int a = ob.fact(4);
System.out.println(" pow is = " + a);
}
}
class abc
{
int a;
int b;
double show()
{
int s;
s = a + b;
return s;
}
}
class ret
{
public static void main(String args[])
{
abc obj = new abc();
obj.a = 5;
obj.b = 5;
System.out.println(obj.show());
}
}
class math
{
void show()
{

79. int a = 10;
int b = 10;
System.out.println("A and b:"+ a + " " + b);
}
}
class plus extends math
{
void show()
{
s = a + b;
System.out.println("A + B"+ s);
}
}
class minus extends plus
{
void show()
{
int m;
m = a - b;
System.out.println("minus is:" + m);
}
}
class shahzad
{
public static void main(String args[])
{
math j;
j = new math();
j = new plus();
}
}
import javax.swing.*;
class simif
{
public static void main(String app[])
{
int n;
String o;
o = JOptionPane.showInputDialog("Enter n=");
n = Integer.parseInt(o);
if(n % 2 == 0)
System.out.println("NO is even" + n);
else
System.out.println("NO is odd" + n);

80. }
}
import javax.swing.*;
class simint2
{
public static void main(String app[])
{
int a,b,s;
String in;
in = JOptionPane.showInputDialog("Enter a");
a = Integer.parseInt(in);
in = JOptionPane.showInputDialog("Enter b");
b = Integer.parseInt(in);
s = a + b;
System.out.println("Sum is = " + s);
}
}
import javax.swing.*;
class simmul3
{
public static void main(String app[])
{
int a,b,s;
String n;
n = JOptionPane.showInputDialog("Enter a");
a = Integer.parseInt(n);
n = JOptionPane.showInputDialog("Enter b");
b = Integer.parseInt(n);
s = a * b;
System.out.println("Product is =" + s);
}
}
import javax.swing.*;
class simmul3
{
public static void main(String app[])
{
int a,b,s;
String n;
n = JOptionPane.showInputDialog("Enter a");
a = Integer.parseInt(n);
n = JOptionPane.showInputDialog("Enter b");
b = Integer.parseInt(n);
s = a * b;

81. System.out.println("Product is =" + s);
}
}
import javax.swing.*;
class simmul4
{
public static void main (String args[])
{
String n; // Capital S
int a,b,c,s;
n = JOptionPane.showInputDialog("Enter a = ");
a = Integer.parseInt(n);
n = JOptionPane.showInputDialog("Enter b = "); // Capital P
b = Integer.parseInt(n);
n = JOptionPane.showInputDialog("Enter c = ");
c = Integer.parseInt(n);
s = (a * b * c);
JOptionPane.showMessageDialog(null, " Product is = " + s);
System.out.println(" Product is = " + s);
}
}
import javax.swing.*;
class simodev4
{
public static void main(String app[])
{
int n;
String o;
o = JOptionPane.showInputDialog("Enter n=");
n = Integer.parseInt(o);
if(n % 2 == 0)
System.out.println("NO is even" + n);
else
System.out.println("NO is odd" + n);
}
}
import java.awt.*;
import java.applet.Applet;
public class simpleApplet extends jApplet
{
public void paint(Graphics g)
{

82. g.drawString("A Simple Applet" , 20, 20);
}
}
class object
{
static int a;
static int b;
static
{
a = 4;
b = 6;
}
static void show()
{
return "a = "+ a+ " " "b = "+ b ;
System.out.println("Value of a is = " + a);
System.out.println("Value of b is = " + b);
}
}
class stat
{
public static void main(String app[])
{
show();
}
}
class stat1
{
static int a;
static int b;
static
{
a = 4;
b = 6;
}
static void show()
{
System.out.println("Value of a is = " + a);
System.out.println("Value of b is = " + b);
}
static void sum()
{
System.out.println("Sum of no is = " + (a + b));
}

83. public static void main(String app[])
{
show();
sum();
}
}
class static
{
static int a;
static int b;
static
{
a = 4;
b = 6;
}
static void show()
{
System.out.println("Value of a is = " + a);
System.out.println("Value of b is = " + b);
}
public static void main(String app[])
{
show();
}
}