JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Thread By Extending Thread Class

  • A thread can be created in java by extending Thread class, where you must override run() method.
  • Call start() method to start executing the thread object.

Thread Sample Code

Code:
package com.myjava.threads;

class MySmpThread extends Thread{
    public static int myCount = 0;
    public void run(){
        while(MySmpThread.myCount <= 10){
            try{
                System.out.println("Expl Thread: "+(++MySmpThread.myCount));
                Thread.sleep(100);
            } catch (InterruptedException iex) {
                System.out.println("Exception in thread: "+iex.getMessage());
            }
        }
    }
}
public class RunThread {
    public static void main(String a[]){
        System.out.println("Starting Main Thread...");
        MySmpThread mst = new MySmpThread();
        mst.start();
        while(MySmpThread.myCount <= 10){
            try{
                System.out.println("Main Thread: "+(++MySmpThread.myCount));
                Thread.sleep(100);
            } catch (InterruptedException iex){
                System.out.println("Exception in main thread: "+iex.getMessage());
            }
        }
        System.out.println("End of Main Thread...");
    }
}

Example Output

Starting Main Thread...
Main Thread: 1
Expl Thread: 2
Expl Thread: 3
Main Thread: 4
Expl Thread: 5
Main Thread: 5
Expl Thread: 6
Main Thread: 7
Main Thread: 8
Expl Thread: 9
Expl Thread: 11
Main Thread: 10
End of Main Thread...

Other Thread Examples

Knowledge Centre
Transient and Volatile Modifiers
Transient: The transient modifier applies to variables only and it is not stored as part of its object's Persistent state. Transient variables are not serialized.

Volatile: Volatile modifier applies to variables only and it tells the compiler that the variable modified by volatile can be changed unexpectedly by other parts of the program.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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