JTextArea Example

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class TextAreaDemo extends JFrame
     {
     private JTextArea t1, t2;
     private JButton copy;
   
     public TextAreaDemo()
         {
         super( "TextArea Demo" );
       
         Box b = Box.createHorizontalBox();
       
         String s = "This is a demo string to\n" +
         "illustrate copying text\n" +
         "from one TextArea to \n" +
         "another TextArea using an\n"+
         "external event\n";
       
         t1 = new JTextArea( s, 10, 15 );
         b.add( new JScrollPane( t1 ) );
       
         copy = new JButton( "Copy >>>" );
         copy.addActionListener( new ActionListener()
             {
             public void actionPerformed( ActionEvent e )
                 {
                 t2.setText( t1.getSelectedText() );
             }
         } );
         b.add( copy );
       
         t2 = new JTextArea( 10, 15 );
         t2.setEditable( false );
         b.add( new JScrollPane( t2 ) );
       
         Container c = getContentPane();
         c.add( b ); // Box placed in BorderLayout.CENTER
         setSize( 425, 200 );
         show();
     }
   
     public static void main( String args[] )
         {
         TextAreaDemo app = new TextAreaDemo();
       
         app.addWindowListener( new WindowAdapter()
             {
             public void windowClosing( WindowEvent e )
                 {
                 System.exit( 0 );
             }
         } );
     }
}

Java Opend Dialog Box Example

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SwingControlDemo {
   private JFrame mainFrame;
   private JLabel headerLabel;
   private JLabel statusLabel;
   private JPanel controlPanel;

   public SwingControlDemo(){
      prepareGUI();
   }
   public static void main(String[] args){
      SwingControlDemo  swingControlDemo = new

SwingControlDemo();     
      swingControlDemo.showFileChooserDemo();
   }
   private void prepareGUI(){
      mainFrame = new JFrame("Java Swing Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));
     
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent

windowEvent){
            System.exit(0);
         }       
      });   
      headerLabel = new JLabel("", JLabel.CENTER);       
      statusLabel = new JLabel("",JLabel.CENTER);   
      statusLabel.setSize(350,100);

      controlPanel = new JPanel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true); 
   }
   private void showFileChooserDemo(){
      headerLabel.setText("Control in action: JFileChooser");
      final JFileChooser  fileDialog = new JFileChooser();
      JButton showFileDialogButton = new JButton("Open

File");
     
      showFileDialogButton.addActionListener(new

ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            int returnVal = fileDialog.showOpenDialog

(mainFrame);
           
            if (returnVal == JFileChooser.APPROVE_OPTION) {
               java.io.File file = fileDialog.getSelectedFile();
               statusLabel.setText("File Selected :" +

file.getName());
            } else {
               statusLabel.setText("Open command cancelled by

user." );          
            }     
         }
      });
      controlPanel.add(showFileDialogButton);
      mainFrame.setVisible(true); 
   }
}

JSpinner Example

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class SwingControlDemo {
   private JFrame mainFrame;
   private JLabel headerLabel;
   private JLabel statusLabel;
   private JPanel controlPanel;

   public SwingControlDemo(){
      prepareGUI();
   }
   public static void main(String[] args){
      SwingControlDemo  swingControlDemo = new

SwingControlDemo();     
      swingControlDemo.showSpinnerDemo();
   }
   private void prepareGUI(){
      mainFrame = new JFrame("Java Swing Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));
     
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent

windowEvent){
            System.exit(0);
         }       
      });   
      headerLabel = new JLabel("", JLabel.CENTER);       
      statusLabel = new JLabel("",JLabel.CENTER);   
      statusLabel.setSize(350,100);

      controlPanel = new JPanel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true); 
   }
   private void showSpinnerDemo(){
      headerLabel.setText("Control in action: JSpinner");
      SpinnerModel spinnerModel = new SpinnerNumberModel

(10, //initial value
         0, //min
         100, //max
         1);//step
      JSpinner spinner = new JSpinner(spinnerModel);
      spinner.addChangeListener(new ChangeListener() {
         public void stateChanged(ChangeEvent e) {
            statusLabel.setText("Value : " +

((JSpinner)e.getSource()).getValue());
         }
      });
      controlPanel.add(spinner);
      mainFrame.setVisible(true); 
   }
}

JSlider Example

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class SwingControlDemo {
   private JFrame mainFrame;
   private JLabel headerLabel;
   private JLabel statusLabel;
   private JPanel controlPanel;

   public SwingControlDemo(){
      prepareGUI();
   }
   public static void main(String[] args){
      SwingControlDemo  swingControlDemo = new

SwingControlDemo();    
      swingControlDemo.showSliderDemo();
   }
   private void prepareGUI(){
      mainFrame = new JFrame("Java Swing Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));
    
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent

windowEvent){
            System.exit(0);
         }      
      });  
      headerLabel = new JLabel("", JLabel.CENTER);      
      statusLabel = new JLabel("",JLabel.CENTER);  
      statusLabel.setSize(350,100);

      controlPanel = new JPanel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true);
   }
   private void showSliderDemo(){
      headerLabel.setText("Control in action: JSlider");
      JSlider slider = new JSlider

(JSlider.HORIZONTAL,0,100,10);
    
      slider.addChangeListener(new ChangeListener() {
         public void stateChanged(ChangeEvent e) {
            statusLabel.setText("Value : " +

((JSlider)e.getSource()).getValue());
         }
      });
      controlPanel.add(slider);    
      mainFrame.setVisible(true);   
   }
}