How to add a Delay of a Few Seconds in Java Program

To add a delay of a few seconds in your Java Program, you can make use of the Thread.sleep() method.

Example:

package org.code2care.examples;

import java.time.LocalDateTime;

public class JavaSleepFewSecondsExample {

    public static void main(String[] args) throws InterruptedException {

        System.out.println("Sleeping every 2 seconds...");

        while(true) {
            System.out.println(LocalDateTime.now());
            Thread.sleep(2000);
        }
    }
}

Output:

You can also make use of the java.util.concurrent.TimeUnit class where you can pass in the time duration in seconds unlike milliseconds using Thread class.

Example:

package org.code2care.examples;

import java.time.LocalDateTime;
import java.util.concurrent.TimeUnit;

public class JavaSleepFewSecondsExample {

    public static void main(String[] args) throws InterruptedException {

        System.out.println("Sleeping every 2 seconds...");

        while(true) {
            System.out.println(LocalDateTime.now());
            TimeUnit.SECONDS.sleep(2);
        }
    }
}

Note both these methods thorws InterruptedException which needs to be handled.