What is wrong with my code?

[tweetychirpy]

This is an array of Thread in Worker class that implements Runnable. i donno why the threads are not starting :(

import java.util.*;

public class Worker extends Thread {

public static void main(String[] args) {
Worker[] worker = new Worker[10];
Thread[] thread = new Thread[10] ;
for (int i = 0 ; i < thread.length ; i++){
thread[i] = new Thread(worker[i]);
thread[i].start();
}

}

public void run(){
System.out.println("hello");
}
}

[j2me64]

This is an array of Thread in Worker class that implements Runnable. i donno why the threads are not starting :(

Not true! The class Worker extends a Thread and not the interface Runnable!

BTW: One instance of a class that implements Runnable can by passed to multiple threads! So the array of Workers is not needed, but only one reference. Last error: all worker[i] are null!

[tweetychirpy]

Apologies!!



import java.util.*;

public class Worker implements Runnable {

public static void main(String[] args) {
Worker[] worker = new Worker[10];
Thread[] thread = new Thread[10] ;
for (int i = 0 ; i < thread.length ; i++){
thread[i] = new Thread(worker[i]);
thread[i].start();
}

}

public void run(){
System.out.println("hello");
}
}

[tweetychirpy]

Thanks got the issue...its working nw :)

[j2me64]

You don't need to have an array of size 10 for the runnable Worker class, only one is enough

	public static void main(String[] args) {
		Worker worker = new Worker();
		Thread[] thread = new Thread[10];
		for (int i = 0; i < thread.length; i++) {
			thread[i] = new Thread(worker);
			thread[i].start();
		}
	}

It's true that the same thread can be started only once, but the same runnable can passed to several threads.