Trying to Popup a new JFrame

[Chris Weaver]

Ok, before you rip me for the code below, I'm just learning this stuff...
I'm trying to display a table and then allow the user to click on a line and pop a new window up. (got that far). the problem i'm having is detecting the button clicked in the new popup.

Any help would be most appreciated.

import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
 
import java.awt.event.*;
import java.awt.*;
 
public class SimpleTable implements ListSelectionListener {
JTable aTable;
JButton button;

  public SimpleTable() {
   JFrame frame = new JFrame("Table");
   frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {System.exit(0);}});

   final String[] names = {"First Name", "Last Name", "Id" };
   final Object[][] data = {
     {"Mark", "Andrews", new Integer(1)},
     {"Tom", "Ball", new Integer(2)},
     {"Alan", "Chung", new Integer(3)},
     };

   TableModel dataModel = new AbstractTableModel() {
     public int getColumnCount() { return names.length; }
     public int getRowCount() { return data.length;}
     public Object getValueAt(int row, int col) {return data[row][col];}
     public String getColumnName(int column) {return names[column];}
     public Class getColumnClass(int col) {return getValueAt(0,col).getClass();}
     public void setValueAt(Object aValue, int row, int column) {
       data[row][column] = aValue;
       }
};
 
   aTable = new JTable(dataModel);
 
   ListSelectionModel listMod =  aTable.getSelectionModel();
   listMod.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   listMod.addListSelectionListener(this);
 
   JScrollPane scrollpane = new JScrollPane(aTable);
   scrollpane.setPreferredSize(new Dimension(300, 300));
   frame.getContentPane().add(scrollpane);
   frame.pack();
   frame.setVisible(true);
   

aTable.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
   int[] selRows;
Object value;

selRows = aTable.getSelectedRows();
TableModel tm = aTable.getModel();
value = tm.getValueAt(selRows[0],1);

JTextArea outputArea = new JTextArea();

if (e.getClickCount() == 2){
         System.out.println(value);
    outputArea.setText("" + value);
 
eatMe("" + value);
}
      }
    } );
  }
 
public static void eatMe(String outputArea){
//DISPLAY MESSAGE WITH NAME FROM JTABLE
//JOptionPane.showMessageDialog( null, outputArea, "SimpleTable", JOptionPane.INFORMATION_MESSAGE );

JFrame frame = new JFrame("Table2");
JButton button = new JButton(outputArea);

frame.getContentPane().add(button);
frame.setSize(300,300);
frame.setVisible(true);

//DOESN'T WORK!!!
//button.addActionListener(this);
}

public void actionPerformed(ActionEvent event){
button.setText("Clicked");
}
 
 public void valueChanged(ListSelectionEvent e) {

}

    public static void main(String[] args) {
        new SimpleTable();
    }
}

[Gregg Bolinger]

3 problems to fix and the code should work.

You never impplement ActionListener on SimpleTable. Put a comma after ListSelectionListener and add ActionListener

eatMe method does not need to be static. Remove static from that method.

In the eatMe method you create a new JButton then in the actionPerformed method you try and modify that object's text. The scope of button is only for the eatMe method. You can either make button global to the entire class or you can do something like the code below

public void actionPerformed(ActionEvent event)
{
JButton b = (JButton)event.getSource();
b.setText("Clicked");
}

Hope that helps. Here is your code with the solutions I mentioned.

import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
 
import java.awt.event.*;
import java.awt.*;
 
public class SimpleTable implements ListSelectionListener, ActionListener {
JTable aTable;
JButton button;

  public SimpleTable() {
   JFrame frame = new JFrame("Table");
   frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {System.exit(0);}});

   final String[] names = {"First Name", "Last Name", "Id" };
   final Object[][] data = {
     {"Mark", "Andrews", new Integer(1)},
     {"Tom", "Ball", new Integer(2)},
     {"Alan", "Chung", new Integer(3)},
     };

   TableModel dataModel = new AbstractTableModel() {
     public int getColumnCount() { return names.length; }
     public int getRowCount() { return data.length;}
     public Object getValueAt(int row, int col) {return data[row][col];}
     public String getColumnName(int column) {return names[column];}
     public Class getColumnClass(int col) {return getValueAt(0,col).getClass();}
     public void setValueAt(Object aValue, int row, int column) {
       data[row][column] = aValue;
       }
};
 
   aTable = new JTable(dataModel);
 
   ListSelectionModel listMod =  aTable.getSelectionModel();
   listMod.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   listMod.addListSelectionListener(this);
 
   JScrollPane scrollpane = new JScrollPane(aTable);
   scrollpane.setPreferredSize(new Dimension(300, 300));
   frame.getContentPane().add(scrollpane);
   frame.pack();
   frame.setVisible(true);
   

aTable.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
   int[] selRows;
Object value;

selRows = aTable.getSelectedRows();
TableModel tm = aTable.getModel();
value = tm.getValueAt(selRows[0],1);

JTextArea outputArea = new JTextArea();

if (e.getClickCount() == 2){
         System.out.println(value);
    outputArea.setText("" + value);
 
eatMe("" + value);
}
      }
    } );
  }
 
public void eatMe(String outputArea){
//DISPLAY MESSAGE WITH NAME FROM JTABLE
//JOptionPane.showMessageDialog( null, outputArea, "SimpleTable", JOptionPane.INFORMATION_MESSAGE );

JFrame frame = new JFrame("Table2");
JButton button = new JButton(outputArea);

frame.getContentPane().add(button);
frame.setSize(300,300);
frame.setVisible(true);

//DOESN'T WORK!!!
button.addActionListener(this);
}

public void actionPerformed(ActionEvent event){
JButton b = (JButton)event.getSource();
b.setText("Clicked");
}
 
 public void valueChanged(ListSelectionEvent e) {

}

    public static void main(String[] args) {
        new SimpleTable();
    }
}