Monday, 6 March 2017

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); 
   }
}


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