public class JTableExample extends JFrame implements ActionListener { public static void main(String[] argv) { JTableExample mainApp = new JTableExample(); }
table = new JTable(10, 3); table.setBounds(10, 10, 420, 200);
tableHandler = new TableHandler(); table.setModel(tableHandler);
// Create three JTextField... textfield1 = new JTextField(15); textfield1.setLocation(10, 220); textfield1.setSize(textfield1.getPreferredSize());
textfield2 = new JTextField(15); textfield2.setLocation(10, 250); textfield2.setSize(textfield2.getPreferredSize());
textfield3 = new JTextField(15); textfield3.setLocation(10, 280); textfield3.setSize(textfield3.getPreferredSize());
// Create the button... addButton = new JButton("Add Data to Table"); addButton.setLocation(200, 220); addButton.setSize(addButton.getPreferredSize());
// Add the action listeners... addButton.addActionListener(this);
// Add the objects to the content pane... getContentPane().add(table); getContentPane().add(textfield1); getContentPane().add(textfield2); getContentPane().add(textfield3); getContentPane().add(addButton);
setVisible(true); }
public void actionPerformed(ActionEvent e) { if(e.getSource() == addButton) { // Check there is text in the 'textfield' if(textfield1.getText().compareTo("") != 0 && textfield2.getText().compareTo("") != 0 && textfield3.getText().compareTo("") != 0) { // Then add the three fields to the JTable tableHandler.addRowToTable(textfield1.getText(), textfield2.getText(), textfield3.getText());
// Clear the textfields... textfield1.setText(""); textfield2.setText(""); textfield3.setText(""); } } }
public class JListExample extends JFrame implements ActionListener { public static void main(String[] argv) { JListExample mainApp = new JListExample(); }
// Create the list object... list = new JList(); list.setBounds(10, 10, 420, 200); listData = new Vector();
// Create a JTextField... textfield = new JTextField(15); textfield.setLocation(10, 220); textfield.setSize(textfield.getPreferredSize());
// Create the two buttons... addButton = new JButton("Add Text to List"); addButton.setLocation(200, 220); addButton.setSize(addButton.getPreferredSize());
removeButton = new JButton("Remove Selected from List"); removeButton.setLocation(200, 250); removeButton.setSize(removeButton.getPreferredSize());
// Add the action listeners... addButton.addActionListener(this); removeButton.addActionListener(this);
// Add the objects to the content pane... getContentPane().add(list); getContentPane().add(textfield); getContentPane().add(addButton); getContentPane().add(removeButton);
setVisible(true); }
public void actionPerformed(ActionEvent e) { if(e.getSource() == addButton) { // Check there is text in the 'textfield' if(textfield.getText().compareTo("") != 0) { // Then add it to the JList object listData.add(textfield.getText()); list.setListData(listData);
// Clear the textfield... textfield.setText(""); } } else if(e.getSource() == removeButton) { // Check there is a list item selected if(list.getSelectedValue() != null) { // Then add it to the JList object listData.remove(list.getSelectedValue()); list.setListData(listData); } } }
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class JTableExample extends JFrame implements ActionListener
{
public static void main(String[] argv)
{
JTableExample mainApp = new JTableExample();
}
public JTableExample()
{
super("JTable Example");
setBounds(0, 0, 450, 350);
getContentPane().setLayout(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
table = new JTable(10, 3);
table.setBounds(10, 10, 420, 200);
tableHandler = new TableHandler();
table.setModel(tableHandler);
// Create three JTextField...
textfield1 = new JTextField(15);
textfield1.setLocation(10, 220);
textfield1.setSize(textfield1.getPreferredSize());
textfield2 = new JTextField(15);
textfield2.setLocation(10, 250);
textfield2.setSize(textfield2.getPreferredSize());
textfield3 = new JTextField(15);
textfield3.setLocation(10, 280);
textfield3.setSize(textfield3.getPreferredSize());
// Create the button...
addButton = new JButton("Add Data to Table");
addButton.setLocation(200, 220);
addButton.setSize(addButton.getPreferredSize());
// Add the action listeners...
addButton.addActionListener(this);
// Add the objects to the content pane...
getContentPane().add(table);
getContentPane().add(textfield1);
getContentPane().add(textfield2);
getContentPane().add(textfield3);
getContentPane().add(addButton);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == addButton)
{
// Check there is text in the 'textfield'
if(textfield1.getText().compareTo("") != 0 &&
textfield2.getText().compareTo("") != 0 &&
textfield3.getText().compareTo("") != 0)
{
// Then add the three fields to the JTable
tableHandler.addRowToTable(textfield1.getText(),
textfield2.getText(),
textfield3.getText());
// Clear the textfields...
textfield1.setText("");
textfield2.setText("");
textfield3.setText("");
}
}
}
JTable table;
TableHandler tableHandler;
JTextField textfield1;
JTextField textfield2;
JTextField textfield3;
JButton addButton;
}
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class JListExample extends JFrame implements ActionListener
{
public static void main(String[] argv)
{
JListExample mainApp = new JListExample();
}
public JListExample()
{
super("JList Example");
setBounds(0, 0, 450, 350);
getContentPane().setLayout(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
// Create the list object...
list = new JList();
list.setBounds(10, 10, 420, 200);
listData = new Vector();
// Create a JTextField...
textfield = new JTextField(15);
textfield.setLocation(10, 220);
textfield.setSize(textfield.getPreferredSize());
// Create the two buttons...
addButton = new JButton("Add Text to List");
addButton.setLocation(200, 220);
addButton.setSize(addButton.getPreferredSize());
removeButton = new JButton("Remove Selected from List");
removeButton.setLocation(200, 250);
removeButton.setSize(removeButton.getPreferredSize());
// Add the action listeners...
addButton.addActionListener(this);
removeButton.addActionListener(this);
// Add the objects to the content pane...
getContentPane().add(list);
getContentPane().add(textfield);
getContentPane().add(addButton);
getContentPane().add(removeButton);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == addButton)
{
// Check there is text in the 'textfield'
if(textfield.getText().compareTo("") != 0)
{
// Then add it to the JList object
listData.add(textfield.getText());
list.setListData(listData);
// Clear the textfield...
textfield.setText("");
}
}
else if(e.getSource() == removeButton)
{
// Check there is a list item selected
if(list.getSelectedValue() != null)
{
// Then add it to the JList object
listData.remove(list.getSelectedValue());
list.setListData(listData);
}
}
}
JList list;
Vector listData;
JTextField textfield;
JButton addButton;
JButton removeButton;
}
import java.util.*;
class TableHandler extends AbstractTableModel
{
public TableHandler()
{
dataRows = new Vector(); // set up the vector
}
public void addRowToTable(String a, String b, String c)
{
String[] rowData = new String[3];
rowData[0] = a;
rowData[1] = b;
rowData[2] = c;
dataRows.addElement(rowData); // Add the data to a vector
fireTableChanged(null); // Tell the table there is new data
}
public int getColumnCount()
{
return 3;
}
public int getRowCount()
{
if(dataRows != null)
{
return dataRows.size();
}
else
{
return -1;
}
}
public Object getValueAt(int row, int column)
{
if(dataRows != null)
{
return ((String[])(dataRows.elementAt(row)))[column];
}
else
{
return null;
}
}
private Vector dataRows; // Vector to contain the rows of data
}