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
Can interface be final?
No. We can not instantiate interfaces, so in order to make interfaces useful we must create subclasses. The final keyword makes a class unable to be extended.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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