My Java program will not run in the browser, no sound either. Why?

Question

import java.applet.*;

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.applet.AudioClip;

@SuppressWarnings("deprecation")

public class StopWatch extends Applet implements Runnable, ActionListener {

// Panel to keep all the buttons and labels

Panel p;

Label displayTimer; // label for display times

AudioClip audioClip;

// Button start stop

Button start, stop;

// Time for hour. minute and second

int hour, minute, second;

// string to be displayed on the label of time

String disp;

// State of stopwatch on/off

boolean on;

// initialization

public void init() {

// initially off

on = false;

p = new Panel();

// Setting grid layout of the panel

p.setLayout(new GridLayout(4, 1, 6, 10));

// set the initial time to 00 : 00 : 00

hour = minute = second = 0;

// Label

displayTimer = new Label();

disp = "00 : 00 : 00";

displayTimer.setText(disp);

p.add(displayTimer);

// Start button

start = new Button("Start");

start.addActionListener((ActionListener) this); // create action listener for start button

p.add(start);

// Stop button

stop = new Button("Stop"); // create action listener for stop button

stop.addActionListener((ActionListener) this);

p.add(stop);

add(p);

audioClip = getAudioClip(getCodeBase(), "stopSound.wav"); // play audion clip stop

// starting thread

new Thread(this, "StopWatch").start();

}

// Reset Function

// reset to default value

public void reset() {

try {

Thread.sleep(1);

} catch (Exception e) {

System.out.println(e);

}

hour = minute = second = 0;

}

// update method will update the timer

public void update() {

second++; // increment the second

if (second == 60) { // set the second to 0 if second reached 60

second = 0;

minute++;

if (minute == 60) { // set the minute to 0 if minute reached 60

minute = 0;

hour++; // count the hour

}

}

}

// changing label

public void changeLabel() {

// Properly formatting the display of the timer

if (hour < 10)

disp = "0" + hour + " : ";

else

disp = hour + " : ";

if (minute < 10)

disp += "0" + minute + " : ";

else

disp += minute + " : ";

if (second < 10)

disp += "0" + second + " : ";

else

disp += second;

displayTimer.setText(disp); // set the label text

}

// thread.run function

public void run() {

// while the stopwatch is on

while (on) {

try {

// pause 1 millisecond

Thread.sleep(1);

// update the time

update();

// changeLabel

changeLabel();

} catch (InterruptedException e) {

System.out.println(e);

}

}

}

// actionPerformed To listen to the actions on the start/ stop buttons

public void actionPerformed(ActionEvent e) {

// start a thread when start button is clicked

if (e.getSource() == start) { // check for the start button pressed

// stopwatch is on

on = true;

new Thread(this, "StopWatch").start();

}

if (e.getSource() == stop) { // check for the stop button pressed

// stopwatch off

on = false;

System.out.println("Stop sound");

audioClip.stop();

System.out.println("Stop sound1");

}

}

}

Answer 1

Hey Steve,

The Java Applet has been unsupported by almost every web browser since 2017. What web browser are you currently trying to run it in?

More information on Java Applet Deprecation: http://openjdk.java.net/jeps/289