The sleep() method of TimeUnit Class is used to performs a Thread.sleep using this time unit. This is a convenience method that sleeps time arguments into the form required by the Thread.sleep method.
Syntax:
public void sleep(long timeout)
throws InterruptedException
Parameters: This method accepts a mandatory parameters timeout which is the minimum time to sleep. If this is less than or equal to zero, then do not sleep at all.
Return Value: This method does not return anything.
Exception: This method throws InterruptedException if interrupted while sleeping.
Below program illustrate the implementation of TimeUnit sleep() method:
Program 1:
// Java program to demonstrate// sleep() method of TimeUnit Class  import java.util.concurrent.*;  class GFG {    public static void main(String args[])    {        // Get time to sleep        long timeToSleep = 0L;          // Create a TimeUnit object        TimeUnit time = TimeUnit.SECONDS;          try {              System.out.println("Going to sleep for "                               + timeToSleep                               + " seconds");              // using sleep() method            time.sleep(timeToSleep);              System.out.println("Slept for "                               + timeToSleep                               + " seconds");        }          catch (InterruptedException e) {            System.out.println("Interrupted "                               + "while Sleeping");        }    }} |
Output:
Going to sleep for 0 seconds Slept for 0 seconds
Program 2:
// Java program to demonstrate// sleep() method of TimeUnit Class  import java.util.concurrent.*;  class GFG {    public static void main(String args[])    {        // Get time to sleep        long timeToSleep = 10L;          // Create a TimeUnit object        TimeUnit time = TimeUnit.SECONDS;          try {              System.out.println("Going to sleep for "                               + timeToSleep                               + " seconds");              // using sleep() method            time.sleep(timeToSleep);              System.out.println("Slept for "                               + timeToSleep                               + " seconds");        }          catch (InterruptedException e) {            System.out.println("Interrupted "                               + "while Sleeping");        }    }} |
Output:
Going to sleep for 10 seconds Slept for 10 seconds
