JTextFeild doesnt show up
Every time I click on the More button, the TextField doesnt show up.
It like, the panel is not refreshed?
/****************************************************************/
/* Hello*/
/* */
/****************************************************************/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/**
* Summary description for Hello
*
*/
publicclass Helloextends JFrame
{
// Variables declaration
private JScrollPane jScrollPane1;
private JButton More;
private JPanel contentPane;
//--
private JTextField ValueTextField;
private JComboBox LabelComboBox;
private JComboBox ValueComboBox;
private JPanel jPanel1;
privateint ypos = 30;
private String[] str1 ={"1","2","3"};
private String[] str2 ={"a","b","c"};
//--
// End of variables declaration
public Hello()
{
super();
initializeComponent();
this.setVisible(true);
}
privatevoid initializeComponent()
{
jScrollPane1 =new JScrollPane();
More =new JButton();
contentPane = (JPanel)this.getContentPane();
//--
ValueTextField =new JTextField();
LabelComboBox =new JComboBox(str1);
ValueComboBox =new JComboBox(str2);
jPanel1 =new JPanel();
//--
//
// jScrollPane1
//
jScrollPane1.setViewportView(jPanel1);
//
// More
//
More.setText("More");
More.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
More_actionPerformed(e);
}
});
//
// contentPane
//
contentPane.setLayout(null);
addComponent(contentPane, jScrollPane1, 69,21,441,198);
addComponent(contentPane, More, 210,228,83,28);
//
// ValueTextField
//
ValueTextField.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
ValueTextField_actionPerformed(e);
}
});
//
// LabelComboBox
LabelComboBox.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
LabelComboBox_actionPerformed(e);
}
});
//
// ValueComboBox
ValueComboBox.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
ValueComboBox_actionPerformed(e);
}
});
//
// jPanel1
//
jPanel1.setLayout(null);
jPanel1.setPreferredSize(new Dimension(422, 600));
addComponent(jPanel1, ValueTextField, 288,ypos,100,22);
addComponent(jPanel1, LabelComboBox, 24,ypos,100,22);
addComponent(jPanel1, ValueComboBox, 155,ypos,100,22);
this.setTitle("Hello - extends JFrame");
this.setLocation(new Point(0, 0));
this.setSize(new Dimension(646, 430));
}
privatevoid addComponent(Container container,Component c,int x,int y,int width,int height)
{
c.setBounds(x,y,width,height);
container.add(c);
}
privatevoid More_actionPerformed(ActionEvent e)
{
System.out.println("\nMore_actionPerformed(ActionEvent e) called.");
ypos = ypos + 30;
ValueTextField.revalidate();
LabelComboBox.revalidate();
ValueComboBox.revalidate();
LabelComboBox.setEnabled(false);
ValueTextField =new JTextField();
LabelComboBox =new JComboBox(str1);
ValueComboBox =new JComboBox(str2);
ValueTextField.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
ValueTextField_actionPerformed(e);
}
});
LabelComboBox.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
LabelComboBox_actionPerformed(e);
}
});
ValueComboBox.addActionListener(new ActionListener(){
publicvoid actionPerformed(ActionEvent e)
{
ValueComboBox_actionPerformed(e);
}
});
addComponent(jPanel1, ValueTextField, 288,ypos,100,22);
addComponent(jPanel1, LabelComboBox, 24,ypos,100,22);
addComponent(jPanel1, ValueComboBox, 155,ypos,100,22);
jPanel1.revalidate();
}
privatevoid ValueTextField_actionPerformed(ActionEvent e)
{
System.out.println("\nValueTextField_actionPerformed(ActionEvent e) called.");
}
privatevoid LabelComboBox_actionPerformed(ActionEvent e)
{
System.out.println("\nLabelComboBox_actionPerformed(ActionEvent e) called.");
Object o = LabelComboBox.getSelectedItem();
System.out.println(">>" + ((o==null)?"null" : o.toString()) +" is selected.");
}
privatevoid ValueComboBox_actionPerformed(ActionEvent e)
{
System.out.println("\nValueComboBox_actionPerformed(ActionEvent e) called.");
Object o = ValueComboBox.getSelectedItem();
System.out.println(">>" + ((o==null)?"null" : o.toString()) +" is selected.");
}
//============================= Testing ================================//
//==//
//= The following main method is just for testing this class you built.=//
//= After testing,you may simply delete it.=//
//======================================================================//
publicstaticvoid main(String[] args)
{
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}
catch (Exception ex)
{
System.out.println("Failed loading L&F: ");
System.out.println(ex);
}
new Hello();
}
//= End of Testing =
}
Message was edited by:
Shaodw_boi
