Handling the Threads

Question

Hello everyone,
i have a question about handling the thread,
So, lets say i have 4 threads running and i have a common list to dump the data, how do i do this.
i have a basic understanding of threads and have gone through some tutorial but i dont know how to do this.
i kinda know that we can synchronize the add() which basically adds the data on the list such that the running thread holds the lock. but my main problem is how to organize or say control the thread such that each adds the data like below.
such that
1. thread1
2. thread2
3. thread3 .....
4. thread4
5. thread1....
any help will be greatly appreciated
:)

Answer 1

Try this example
public static void main(String[] args) throws InterruptedException {
    Thread[] threads = new Thread[4];
    final String[] results = new String[100];
    for (int i = 0; i < threads.length; i++) {
        final int start = i;
        threads[i] = new Thread(new Runnable() {
            public void run() {
                for (int j = start; j < results.length; j += 4)
                    results[j] = Thread.currentThread().getName();
        }, "thread" + i);
        threads.start();
for (int i = 0; i < threads.length; i++)
threads[i].join();
for (int i = 0; i < results.length; i++)
System.out.println(i + ": " + results[i]);