function delay(time) { return new Promise(resolve => setTimeout(resolve, time));
}
delay(1000).then(() => console.log('ran after 1 second1 passed'));

//deprecated in main thread:
try { Thread.sleep(1000);//time is in ms (1000 ms = 1 second)
} catch (InterruptedException e) {e.printStackTrace();}
//please use bellow instead:
Timer timer = new Timer();
timer.schedule(new TimerTask() { @Override public void run() { //what you want to do }
}, 1000);//wait 1000ms before doing the action

Syntax :
=========================================================	Thread.sleep(1000); // 1000 milliseconds.. |
=========================================================
int i=0;
for(;;){	Thread.sleep(2000); // set time delay to 2 seconds..	System.out.println(i++); // output : every output will display after 2 seconds..
}

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

import java.util.Date;
public class JavaHungry { public static void main(String args[]) { try { System.out.println("Start of delay: "+ new Date()); // Delay for 7 seonds Thread.sleep(7000); System.out.println("End of delay: "+ new Date()); } catch(InterruptedException ex) { ex.printStackTrace(); } }
}