import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * Write a description of class TitleScreen here. * * @author (your name) * @version (a version number or a date) */ public class TitleScreen extends World { GreenfootSound backgroundMusic = new GreenfootSound("TitleScreenMusic.mp3"); /** * Constructor for objects of class TitleScreen. * */ public TitleScreen() { // Create a new world with 600x400 cells with a cell size of 1x1 pixels. super(700, 700, 1); prepare(); } public void prepare() { ScreenText screentext = new ScreenText(); addObject(screentext, 350, 350); Start start = new Start(); addObject(start, 550, 180); Options options = new Options(); addObject(options, 548, 270); Quit quit = new Quit(); addObject(quit, 548, 350); } public void started() { backgroundMusic.playLoop(); } public void stopped() { backgroundMusic.stop(); } public void act() { } } This is the code for my title screen and this is the code where im trying to change the volume import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * Write a description of class VolumeOff here. * * @author (your name) * @version (a version number or a date) */ public class VolumeOff extends Actor { /** * Act - do whatever the VolumeOff wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { if (Greenfoot.mouseClicked(this)) backgroundMusic.setVolume(0); } }

Please take example from my BgMusic Actor Class Demo wArcBar Class scenario.

ok, I looked at it but I could not find anything that would work.

In the VolumeOff class, use: In TitleScreen class, change: