Topics covered: • GUI design using drag and drop feature of IDE(Net beans), • File IO • Character Streams • FileReader,FileWriter • Byte Streams • File input stream, File output stream • Object input stream, Object output stream • Character vs Streams • Sterilization,Deserilization and Externalization

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LAB Report11
CS2104 - OBJECT ORIENTED PROGRAMMING (3+1)
BS-CS (1) OR BS-SE (2)
SPRING 2019
INSTRUCTOR(S)-IN-CHARGE: MR. BILAL MAQBOOL
Submitted by: Syed Shahrose Sohail

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Lab Number: 11
Lab Title: GUI design
Aim: To learn graphical user interface
Topics covered:
 GUI design using drag and drop feature of IDE(Net beans),
 File IO
 Character Streams
 FileReader,FileWriter
 Byte Streams
 File input stream, File output stream
 Object input stream, Object output stream
 Character vs Streams
 Sterilization,Deserilization and Externalization
Lab Task 1: Write a JAVA program to read and display data (in console) stored in .txt file.
Code:
import java.io.*;
import java.util.*;
public class Main {
public static void main(String args[]) throws IOException{
File f=new File("E:InputFile.txt");
FileInputStream InputF=new FileInputStream(f);
int a;
do{ a=InputF.read();
if(a!=-1){
System.out.print((char)a);}
}while (a!=-1);}}

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Lab Task 02: Write a JAVA program to get data from user and store in .txt file.
import java.io.*;
import java.util.*;
public class Main {
public static void main(String args[]) throws IOException{
File f=new File("E:OutputFile.txt");
f.createNewFile();
FileOutputStream outputStream=new FileOutputStream(f,true);
String str="Your time is limited";
char arr[]=str.toCharArray();
}}

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Lab Task 3: Write a JAVA program to read and display data (in console) stored in .txt file.
Code:
import java.io.Serializable;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
class Employee implements Serializable {
private static final long serialVersionUID = -299482035708790407L;
private String name;
private String gender;
private int age;
private String role;
// private transient String role;
public Employee(String n) {
this.name = n;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getRole() {
return role;
}
public void setRole(String role) {

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this.role = role;
}
@Override
public String toString() {
return "Employee:: Name=" + this.name + " Age=" + this.age + " Gender=" +
this.gender + " Role=" + this.role;
}
}
public class shah {
public static void main(String[] args) {
Employee emp = new Employee("Pankaj");
emp.setAge(35);
emp.setGender("Male");
emp.setRole("CEO");
System.out.println(emp);
try {
FileOutputStream fos = new FileOutputStream("E://p.txt");
ObjectOutputStream oos = new ObjectOutputStream(fos);
// write object to file
oos.writeObject(emp);
System.out.println("Done");
// closing resources
oos.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

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The End