cannot sleep java code example

Example 1: thread sleep java

package com.journaldev.threads;

public class ThreadSleep {

    public static void main(String[] args) throws InterruptedException {
        long start = System.currentTimeMillis();
        Thread.sleep(2000);
        System.out.println("Sleep time in ms = "+(System.currentTimeMillis()-start));
        
    }

}

Example 2: sleep() java

import java.util.concurrent.TimeUnit

try {
	TimeUnit.SECONDS.sleep(1);
}
catch (Exception e) {
	System.out.println("Oops! Something went wrong!")
}