U Nyein Oo Director/COO(IT) Myanma Computer Co., Ltd IADCS Diploma Course Advanced Java

Subject Content 1. Introduction to Java & OOP 2. Programming in Java 3. Types- Primitive, Reference and Garbage Collection 4. Classes and Packages with OO Programming 5. Exception Handling with Java 6. Object Cloning and RTTI 7. Programming I/O within Java

1. Introduction to Java & OOP

2. Programming in Java

3. Types- Primitive, Reference and Garbage Collection

4. Classes and Packages with OO Programming

5. Exception Handling with Java

6. Object Cloning and RTTI

7. Programming I/O within Java

Subject Content (cont) 8. Object & Classes in Java 9. Multithreading 10. Introduction to GUI 11. Programming Windows and Events 12. Client side Java, Applets and JavaBeans 13. Network Programming with Java 14. Programming Server-side Java

8. Object & Classes in Java

9. Multithreading

10. Introduction to GUI

11. Programming Windows and Events

12. Client side Java, Applets and JavaBeans

13. Network Programming with Java

14. Programming Server-side Java

Application of Java Inline sound that play in real time whenever a user loads a page Music that plays in the background on a page Cartoon Style Animations Real time Video Multiplayer interactive games

Inline sound that play in real time whenever

a user loads a page

Music that plays in the background on a page

Cartoon Style Animations

Real time Video

Multiplayer interactive games

Introduction to Java - Object Oriented Programming - Developed by Sun Microsystems - At USA in 1991 by James Gosling . Originally called Oak - Platform Independent Language. Internet Programming Language.

- Object Oriented Programming - Developed by Sun Microsystems - At USA in 1991 by James Gosling .

Originally called Oak - Platform Independent Language.

Internet Programming Language.

Features of Java Simple Object-oriented Platform-independent Robust Safe (Secure) High Performance Multithreaded Distributed Dynamic

Simple

Object-oriented

Platform-independent

Robust

Safe (Secure)

High Performance

Multithreaded

Distributed

Dynamic

Types of Java Programs Applications Command Line GUI Applets Servlets Packages Database Applications

Applications

Command Line

GUI

Applets

Servlets

Packages

Database Applications

Command Line Application // Sample Java Program class HelloWorld{ public static void main(String args[]) { System.out.println(“Helloworld ”); } }

Compilation code in Java

Traditional way of compilation

Compiling the sample program C:jdkin>javac HelloWorld.java C:jdkin>java HelloWorld Output “ Hello World!”

C:jdkin>javac HelloWorld.java

C:jdkin>java HelloWorld

Output

“ Hello World!”

JDK Tools Java Compiler, 'javac' Java Interpreter, 'java' Java Dissembler, 'javap' Documentation tool, 'javadoc' Java Debugger, 'jdb‘ Applet viewer, 'appletviewer‘

Java Compiler, 'javac'

Java Interpreter, 'java'

Java Dissembler, 'javap'

Documentation tool, 'javadoc'

Java Debugger, 'jdb‘

Applet viewer, 'appletviewer‘

Programming in Java Variables & Reserved Words Data types & Operators Control Structure Array Handling Classes & Methods String & Maths Classes

Variables & Reserved Words

Data types & Operators

Control Structure

Array Handling

Classes & Methods

String & Maths Classes

Primitive Types byte char boolean short int long float Double Reference Types Java Type long float Double

byte

char

boolean

short

int

long

float

Double

long

float

Double

Operators Types of operators Arithmetic operators Bitwise operators Relational operators Logical operators Conditional operator Assignment operator

Types of operators

Arithmetic operators

Bitwise operators

Relational operators

Logical operators

Conditional operator

Assignment operator

Arithmetic Operators + Addition - Subtraction * Multiplication / Division % Modulus ++ Increment -- Decrement

Arithmetic Operators (Contd…) += Addition and assignment -= Subtraction and assignment *= Multiplication and assignment /= Division and assignment %= Modulus and assignment

Relational Operators == Equal to != Not equal to < Less than > Greater than <= Less than or equal to >= Greater than or equal to

Logical Operators && Logical AND || Logical OR ! Logical unary NOT

&& Logical AND

|| Logical OR

! Logical unary NOT

Conditional Operator Syntax expression1 ? expression2 : expression3; expression1 Boolean condition that returns a True or False value Expression2 Value returned if expression1 evaluates to True expression3 Value returned if exp1 evaluates to False

Syntax

expression1 ? expression2 : expression3;

expression1

Boolean condition that returns a True or False value

Expression2

Value returned if expression1 evaluates to True

expression3

Value returned if exp1 evaluates to False

Control Flow Decision-making if-else statement switch-case statement Loop while loop do-while loop for loop

Decision-making

if-else statement

switch-case statement

Loop

while loop

do-while loop

for loop

Array Declarations Three ways for Array Declaration datatype identifier [ ]; datatype identifier [ ] = new datatype[size]; datatype identifier [ ]= {value1,value2,….valueN};

Three ways for Array Declaration

datatype identifier [ ];

datatype identifier [ ] = new datatype[size];

datatype identifier [ ]= {value1,value2,….valueN};

Methods in Classes A method is defined as the actual implementation of an operation on an object Syntax access_specifier modifier datatype method_name(parameter_list) { //body of method }

A method is defined as the actual implementation of an operation on an object

Syntax

access_specifier modifier datatype method_name(parameter_list)

{

//body of method

}

Sample usage of Method class Temp { static int x = 10; // variable public static void show( ) { // method System.out.println(x); } public static void main(String args[ ]) { Temp t = new Temp( ); // object 1 t.show( ); // method call Temp t1 = new Temp( ); // object 2 t1.x = 20; t1.show(); }}

String Class Constructor methods String str1 = new String(); String str2 = new String(“Hello World”); char ch[ ] = {“A”,”B”,”C”,”D”,”E”}; String str3 = new String(ch); String str4 = new String(ch,0,2);

Constructor methods

String str1 = new String();

String str2 = new String(“Hello World”);

char ch[ ] = {“A”,”B”,”C”,”D”,”E”};

String str3 = new String(ch);

String str4 = new String(ch,0,2);

String Class Methods charAt( ) startsWith() endsWith( ) copyValueOf( ) toCharArray( ) indexOf( ) toUpperCase( ) toLowerCase( ) trim( ) equals( )

charAt( )

startsWith()

endsWith( )

copyValueOf( )

toCharArray( )

indexOf( )

toUpperCase( )

toLowerCase( )

trim( )

equals( )

java.lang.Math Class abs() ceil() floor() max() min() round() random() sqrt() sin() cos() tan()

abs()

ceil()

floor()

max()

min()

round()

random()

sqrt()

sin()

cos()

tan()

java.lang java.applet java.awt java.io java.util Core Java API java.net java.awt.event java.rmi java.security java.sql

java.lang

java.applet

java.awt

java.io

java.util

java.net

java.awt.event

java.rmi

java.security

java.sql

// Text string example class Test_String { public static void main(String args[]) { String name=&quot; Hello Java Programming &quot;; char ch=name.charAt(6); boolean flag1=name.startsWith(&quot;Hello&quot;); boolean flag2=name.endsWith(&quot;Java&quot;); char nname[]={'l','a','n','g','u','a','g','e'}; String subname=name.copyValueOf(nname,5,3); int ind1=name.indexOf('J'); String up=name.toUpperCase(); String lo=name.toLowerCase(); String name2=name.trim(); System.out.println(&quot;charAt &quot; + ch); System.out.println(&quot;Startswith java is &quot;+flag1); System.out.println(&quot;Endswith java is &quot;+flag2); System.out.println(&quot;copy value of &quot;+subname); System.out.println(&quot;Index of &quot;+ind1); System.out.println(&quot;To upper case &quot;+up); System.out.println(&quot;To lower case &quot;+lo); System.out.println(&quot;Trimming is &quot;+name2); } }

// Text string example

class Test_String

{

public static void main(String args[])

{

String name=&quot; Hello Java Programming &quot;;

char ch=name.charAt(6);

boolean flag1=name.startsWith(&quot;Hello&quot;);

boolean flag2=name.endsWith(&quot;Java&quot;);

char nname[]={'l','a','n','g','u','a','g','e'};

String subname=name.copyValueOf(nname,5,3);

int ind1=name.indexOf('J');

String up=name.toUpperCase();

String lo=name.toLowerCase();

String name2=name.trim();

System.out.println(&quot;charAt &quot; + ch);

System.out.println(&quot;Startswith java is &quot;+flag1);

System.out.println(&quot;Endswith java is &quot;+flag2);

System.out.println(&quot;copy value of &quot;+subname);

System.out.println(&quot;Index of &quot;+ind1);

System.out.println(&quot;To upper case &quot;+up);

System.out.println(&quot;To lower case &quot;+lo);

System.out.println(&quot;Trimming is &quot;+name2);

}

}

/*---Maths Classes---*/ public class math_methods{ public static void main(String[] args) { final double PI=Math.PI; final double E=Math.E; System.out.println(&quot;E =&quot;+E); System.out.println(&quot;Math.exp(1.0) =&quot;+Math.exp(1.0)); System.out.println(&quot;PI =&quot;+PI); System.out.println(&quot;4*Math.atan(1.0) =&quot;+Math.atan(1.0)); System.out.println(&quot;Math.cos(2*PI) =&quot;+Math.cos(2*PI)); System.out.println(&quot;Math.sin(PI/2) =&quot;+Math.sin(PI/2)); System.out.println(&quot;Math.cos(PI/4) =&quot;+Math.cos(PI/4)); System.out.println(&quot;Math.log(E) =&quot;+Math.log(E)); System.out.println(&quot;Math.abs(-13.579) =&quot;+Math.abs(-13.579)); System.out.println(&quot;Math.floor(13.579) =&quot;+Math.floor(13.579)); System.out.println(&quot;Math.ceil(13.579) =&quot;+Math.ceil(13.579)); System.out.println(&quot;Math.round(13.579) =&quot;+Math.round(13.579)); System.out.println(&quot;Math.pow(25.0,0.5) =&quot;+Math.pow(25.0,0.5)); System.out.println(&quot;Math.sqrt(25.0) =&quot;+Math.sqrt(25.0)); System.out.println(&quot;Math.random() =&quot;+Math.random()); System.out.println(&quot;Math.random() =&quot;+(10*Math.random())); } }

/*---Maths Classes---*/

public class math_methods{

public static void main(String[] args) {

final double PI=Math.PI;

final double E=Math.E;

System.out.println(&quot;E =&quot;+E);

System.out.println(&quot;Math.exp(1.0) =&quot;+Math.exp(1.0));

System.out.println(&quot;PI =&quot;+PI);

System.out.println(&quot;4*Math.atan(1.0) =&quot;+Math.atan(1.0));

System.out.println(&quot;Math.cos(2*PI) =&quot;+Math.cos(2*PI));

System.out.println(&quot;Math.sin(PI/2) =&quot;+Math.sin(PI/2));

System.out.println(&quot;Math.cos(PI/4) =&quot;+Math.cos(PI/4));

System.out.println(&quot;Math.log(E) =&quot;+Math.log(E));

System.out.println(&quot;Math.abs(-13.579) =&quot;+Math.abs(-13.579));

System.out.println(&quot;Math.floor(13.579) =&quot;+Math.floor(13.579));

System.out.println(&quot;Math.ceil(13.579) =&quot;+Math.ceil(13.579));

System.out.println(&quot;Math.round(13.579) =&quot;+Math.round(13.579));

System.out.println(&quot;Math.pow(25.0,0.5) =&quot;+Math.pow(25.0,0.5));

System.out.println(&quot;Math.sqrt(25.0) =&quot;+Math.sqrt(25.0));

System.out.println(&quot;Math.random() =&quot;+Math.random());

System.out.println(&quot;Math.random() =&quot;+(10*Math.random()));

}

}