Temporarily Stop a Thread in Java

In Java, sometimes a thread needs to pause its execution for a specific period of time before continuing its work. This can be done using the Thread.sleep() method, which temporarily suspends the current thread.

The time is provided in milliseconds.
It throws an InterruptedException, so it must be handled using try-catch.

Note: suspend() method is deprecated in the latest Java version.

Syntax:

public final void suspend()

Java

class GFG extends Thread {
    public void run() {
        for (int i = 1; i < 5; i++) {
            try {
                // thread to sleep for 5 milliseconds
                Thread.sleep(5);
                System.out.println("Currently running - " 
                        + Thread.currentThread().getName());
            } catch (InterruptedException e) {
                System.out.println(e);
            }
            System.out.println(i);
        }
    }

    public static void main(String args[]) {
        // creating three threads
        GFG t1 = new GFG();
        GFG t2 = new GFG();
        GFG t3 = new GFG();

        // start threads
        t1.start();
        t2.start();
        t3.start(); // removed suspend()
    }
}

Output

Explanation: Three threads (t1, t2, t3) are created and started, so they run concurrently and execute the run() method independently. Each thread prints its name and numbers 1–4 with a small delay, so the output appears interleaved and in random order due to multithreading.

Note: Thread t2 can be resumed by resume() method.

Temporarily Stop a Thread in Java

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