Exception found while using Thread sleep and wait in Java

Question

unreported exception java.lang.InterruptedException; must be caught or declared to be thrown.

Answer 1

 From compiler errors through exception handling, threading and thread interruptions. But this will do what you want:

try {
    Thread.sleep(1500);                 //1500 milliseconds is one second.
} catch(InterruptedException ex) {
    Thread.currentThread().interrupt();
}

Answer 2

A simpler way to wait is to use System.currentTimeMillis(), which returns the number of milliseconds since midnight on January 1, 1970 UTC. For example, to wait 5 seconds:

public static void main(String[] args) {
    //some code
    long original = System.currentTimeMillis();
    while (true) {
        if (System.currentTimeMillis - original >= 5000) {
            break;
        }
    }
    //more code after waiting
}