Пробовал разные варианты - безрезультатно.
Подскажите, плз, в чем причина.
package com.javarush.task.task16.task1605;
import java.util.Date;
/*
Поговорим о музыке
*/
public class Solution {
public static int delay = 1000;
static long e;
public static void main(String[] args) {
Thread violin = new Thread(new Violin("Player"));
violin.start();
}
public static void sleepNSeconds(int n) {
try {
Thread.sleep(n * delay);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public interface MusicalInstrument extends Runnable {
Date startPlaying();
Date stopPlaying();
}
public static class Violin implements MusicalInstrument {
public void run() {
startPlaying();
long start= System.currentTimeMillis();
sleepNSeconds(1);
stopPlaying();
long end= System.currentTimeMillis();
System.out.println("Playing " + (end - start) +" ms" );
}
private String owner;
public Violin(String owner) {
this.owner = owner;
}
public Date startPlaying() {
System.out.println(this.owner + " starts playing");
return new Date();
}
public Date stopPlaying() {
System.out.println(this.owner + " stops playing");
return new Date();
}
}
}