Help with two buttons on applet

[kinzur manye]

I have a program and i need a button that will show the lyrics to a song and the other button to clear those words from the text area and right now the way the program is set up is that when i click either of the buttons it shows the lyrics. How can i fix this?

// Fig. 6.9: Craps.java
// Craps.
import java.awt.*;        // Container, FlowLayout
import java.awt.event.*;  // ActionEvent, ActionListener
import javax.swing.*;     // JApplet, JButton, JLabel, JTextField
public class TwelveDaysOfChristmas extends JApplet implements ActionListener
{
JTextArea outputArea;
JButton showButton, clearButton;
Container container = getContentPane();
int buttonNumber;


public void init()
{
container.setLayout( new FlowLayout() );
String result = "";
outputArea = new JTextArea();
outputArea.setEditable(false);
JScrollPane scroller = new JScrollPane( outputArea );
outputArea.setText("");

container.add(scroller);



//create button user clicks to show lyrics
showButton = new JButton ( "Show" );
showButton.addActionListener(this);
container.add( showButton );

//create button user clicks to clear lyrics
clearButton = new JButton ( "Clear" );
clearButton.addActionListener(this);
container.add( clearButton );
}



public void actionPerformed( ActionEvent actionEvent )
{
if(ActionEvent == "Clear")
outputArea.setText("");

for ( int day = 1; day <= 12; day++ )
{
outputArea.append( "\nOn the " + day );
switch( day ) 
{
case 1:
outputArea.append( "st" );
break;            
case 2:
outputArea.append( "nd" );
break;  
case 3:
outputArea.append( "rd" );
break;  
default: 
outputArea.append( "th" );
break;
}
outputArea.append( " day of Christmas, my true love gave to me,\n " );
switch( day )
{
case 12:
outputArea.append( "   Twelve lords a leaping,\n " );
case 11:
outputArea.append( "   Eleven pipers piping, \n" );
case 10:
outputArea.append( "   Ten drummers drumming, \n" );
case 9:
outputArea.append( "   Nine ladies dancing, \n" );
case 8:
outputArea.append( "   Eight maids a milking, \n" );
case 7:
outputArea.append( "   Seven swans a swimming, \n" );
case 6:
outputArea.append( "   Six geese a laying, \n" );
case 5:
outputArea.append( "   Five golden rings.\n" );
case 4:
outputArea.append( "   Four calling birds, \n" );
case 3:
outputArea.append( "   Three French hens, \n" );
case 2:
outputArea.append( "   Two turtle doves, and \n" );
case 1:
outputArea.append( "   a Partridge in pear tree.\n" );          
}
}

container.add(outputArea);
}
}
   

[Torsten Schippel]

Hi Kinzur,
sorry but don't understand why you are able to compile it.
The if(ActionEvent == "Clear") statement should not work. Try actionEvent.getActionCommand() in the if statement.
Additional you need an else part. Otherwise you will clear the text box and fill it with lyrics again.
Regards
Torsten

[kinzur manye]

ok let me try that

[kinzur manye]

ok it works now but the output looks very funny on the applet. Like the text area over runs it or something and my buttons disappear once i click them.

[kinzur manye]

ok i got everything working accept when i run the program my buttons are on teh right of my text area and i want them at the bottom. how do i do that?

[Torsten Schippel]

Hi Kinzur,
if you would like to have the buttons on the bottom, I would use a Borderlayout and two additional JPanel.
For example:

 
  JPanel jPanel1 = new JPanel();
  FlowLayout flowLayout1 = new FlowLayout();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel2 = new JPanel();
  BorderLayout borderLayout2 = new BorderLayout();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }
  //Construct the applet
  public Applet3() {
  }
  //Initialize the applet
  public void init() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception {
    this.setLayout(borderLayout1);
    jPanel1.setMinimumSize(new Dimension(10, 10));
    jPanel1.setOpaque(true);
    jPanel1.setPreferredSize(new Dimension(300, 50));
    jPanel1.setLayout(flowLayout1);
    jButton1.setText("jButton1");
    jButton2.setText("jButton2");
    jPanel2.setPreferredSize(new Dimension(200, 200));
    jPanel2.setRequestFocusEnabled(true);
    jPanel2.setLayout(borderLayout2);
    jTextArea1.setText("jTextArea1");
    this.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jButton1, null);
    jPanel1.add(jButton2, null);
    this.add(jPanel2, BorderLayout.NORTH);
    jPanel2.add(jScrollPane1,  BorderLayout.CENTER);
    jScrollPane1.getViewport().add(jTextArea1, null);
  }

Regards
Torsten