help with action listener please
i am having problems when i execute my application, the program runs and displays exactly what i want it to but when i press the buttons they are not doing what i want. the genre is not being changed and the tracklist updated. And when i select a track from the list and press the play button i am not getting any music to play. I am desperate for someone to sort this out for me as i have now been at it for 26 hours and i have to get it finished
here is my code.
import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Canvas;
import java.awt.Checkbox;
import java.awt.CheckboxGroup;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.List;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.net.URL;
publicclass Helpextends Frame{
private Panel controlPanel;
private Panel drawPanel;
private Panel topPanel;
private Panel rPanel;
private CheckboxGroup genre;
private Checkboxrock;
private Checkboxpop;
private Buttonplay;
private Buttonstop;
private Buttonchangegenre;
private List rockChoice, popChoice;
private DrawingCanvas DrawingCanvas;
private Stringpoplist[];
private Stringrocklist[];
private URLurl1;
private URLurl2;
private URLurl3;
private URLurl4;
private URLurl5;
private URLurl6;
private AudioClip[]rockMusic;
private URLurl7;
private URLurl8;
private URLurl9;
private URLurl10;
private URLurl11;
private AudioClip[]popMusic;
private AudioClipcurrent;
public Help()//costructor
{
rockMusic =new AudioClip[6];
try
{
rockMusic[0] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
rockMusic[1] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
rockMusic[2] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
rockMusic[3] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
rockMusic[4] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
rockMusic[5] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
}
catch (Exception exception){}
popMusic =new AudioClip[5];
try
{
popMusic[0] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
popMusic[1] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
popMusic[2] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
popMusic[3] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
popMusic[4] = Applet.newAudioClip(new java.net.URL("file:song7.wav"));
}
catch (Exception ex){}
setLayout(new BorderLayout());
drawPanel =new Panel();
drawPanel.setLayout(new BorderLayout());
drawPanel.setBackground(Color.black);
DrawingCanvas drawingCanvas =new DrawingCanvas();
drawPanel.add(drawingCanvas,"Center");
add(drawPanel,"North");
stop =new Button("STOP");
stop.setBackground(Color.blue);
play =new Button("PLAY");
play.setBackground(Color.blue);
changegenre =new Button("CHANGE GENRE");
changegenre.setBackground(Color.blue);
controlPanel =new Panel();
controlPanel.setBackground(Color.red);
controlPanel.setLayout(new FlowLayout());
controlPanel.add(play);
play.addActionListener(new ButtonListener());
controlPanel.add(stop);
stop.addActionListener(new ButtonListener());
controlPanel.add(changegenre);
changegenre.addActionListener(new ButtonListener());
add(controlPanel,"South");
genre =new CheckboxGroup();
rock =new Checkbox("ROCK", genre,true);
pop =new Checkbox("POP", genre,false);
topPanel =new Panel();
topPanel.setLayout(new FlowLayout());
topPanel.setBackground(Color.yellow);
topPanel.add(rock);
topPanel.add(pop);
rocklist =new String[]{
"Select Rock Song","Turn Up The Sun","Mucky Fingers","LYLA","Love Like A Bomb","A Bell Will Ring","Let There BE Love"
};
rockChoice =new List();
for (int i = 0; i < rocklist.length; i++)
rockChoice.add(rocklist[i]);
poplist =new String[]{"Select Pop Song","The Importance Of Being Idle","The Meaning Of Soul","Guess God Thinks I Am Able","Part Of TheQueue","Keep The Dream Alive"};
popChoice =new List();
for (int i = 0; i < poplist.length; i++)
popChoice.add(poplist[i]);
topPanel.add(rockChoice);
rockChoice.setVisible(true);
rockChoice.addActionListener(new ListListener());
topPanel.add(popChoice);
popChoice.setVisible(false);
popChoice.addActionListener(new ListListener());
add(topPanel,"Center");
addWindowListener(new WindowAdapter(){
publicvoid windowClosing(WindowEvent e){
dispose();
System.exit(0);
}
});
}
publicstaticvoid main(String[] args){
Help mainFrame =new Help();
mainFrame.setSize(800, 600);
mainFrame.setTitle("Glenn's Java Jukebox");
mainFrame.setVisible(true);
}
privateclass DrawingCanvasextends Canvas{
private DrawingCanvas(){
setSize(100, 400);
}
publicvoid paint(Graphics g){
// do all the drawing of the jukebox in the
g.drawString("please work", 50, 50);
g.setColor(Color.yellow);
g.fillRect(700, 105, 30, 450);
g.fillRect(80, 105, 30, 450);
g.setColor(Color.yellow);
g.fillArc(80, 10, 650, 200, -180, -180);
g.setColor(Color.white);
g.fillOval(150, 60, 20, 20);
g.fillOval(210, 60, 20, 20);
g.fillOval(270, 60, 20, 20);
g.fillOval(330, 60, 20, 20);
g.fillOval(390, 60, 20, 20);
g.fillOval(630, 60, 20, 20);
g.fillOval(450, 60, 20, 20);
g.fillOval(510, 60, 20, 20);
g.fillOval(570, 60, 20, 20);
g.setColor(Color.black);
g.fillOval(180, 60, 20, 20);
g.fillOval(240, 60, 20, 20);
g.fillOval(300, 60, 20, 20);
g.fillOval(360, 60, 20, 20);
g.fillOval(420, 60, 20, 20);
g.fillOval(480, 60, 20, 20);
g.fillOval(540, 60, 20, 20);
g.fillOval(200, 80, 15, 15);
g.fillOval(380, 80, 15, 15);
g.fillOval(260, 80, 15, 15);
g.fillOval(320, 80, 15, 15);
g.fillOval(380, 80, 15, 15);
g.fillOval(440, 80, 15, 15);
g.fillOval(500, 80, 15, 15);
g.fillOval(560, 80, 15, 15);
g.fillOval(620, 80, 15, 15);
g.fillOval(680, 80, 15, 15);
g.fillOval(140, 80, 15, 15);
g.fillOval(600, 60, 20, 20);
g.fillOval(660, 60, 20, 20);
g.setColor(Color.red);
g.fillOval(110, 80, 15, 15);
g.fillOval(170, 80, 15, 15);
g.fillOval(230, 80, 15, 15);
g.fillOval(290, 80, 15, 15);
g.fillOval(350, 80, 15, 15);
g.fillOval(410, 80, 15, 15);
g.fillOval(470, 80, 15, 15);
g.fillOval(530, 80, 15, 15);
g.fillOval(590, 80, 15, 15);
g.fillOval(650, 80, 15, 15);
g.setColor(Color.white);
g.fillRect(110, 100, 600, 500);
g.setColor(Color.magenta);
g.setFont(new Font("TimesRoman", Font.ITALIC, 48));
g.drawString(" Swurlitzer Jukebox", 230, 160);
g.setColor(Color.black);
g.setFont(new Font("Helvetica", Font.PLAIN, 18));
g.drawString(" 1.50 For 4 Plays", 140, 380);
g.drawString("Please Select Your Genre", 400, 380);
g.setFont(new Font("Helvetica", Font.ITALIC, 18));
g.drawString("Glenn Proudly Presents", 290, 40);
g.setColor(Color.yellow);
g.fillRect(690,100,20,450);
}
}//end DrawingCanvas
private class ListListener implements ActionListener {
publicvoid actionPerformed(ActionEvent e){
if (current !=null)
current.stop();
Checkbox chk = genre.getSelectedCheckbox();
if ("rock".equals(chk.getLabel()))
current = rockMusic[rockChoice.getSelectedIndex()];
elseif ("pop".equals(chk.getLabel()))
current = popMusic[popChoice.getSelectedIndex()];//213x1
}
}
privateclass ButtonListenerimplements ActionListener{
publicvoid actionPerformed(ActionEvent event){
if (current !=null)
current.stop();
if (event.getSource() == play)
if (current !=null)
current.play();
if (event.getSource() == changegenre)
changeGenre();
}
}//end ButtonListener
privatevoid changeGenre()//line 229
{
Checkbox c = genre.getSelectedCheckbox();
if (c.getLabel() =="rock")//line 232
{
popChoice.setVisible(false);
rockChoice.setVisible(true);//line235
}//236
elseif (c.getLabel() =="pop"){
//etc for other genres..
repaint();
}//end changeGenre() //line 241
}
}
