standalone application samples

yet, not what I was having in mind..

I'm an experienced MS Visual Basic developer and I can find tons of directories hosting source codes for simple applications (eg. planet-source-code.com).

Whenever I try looking something like that for Java, all I can find are applets but no standalone applications...

Vanjaa at 2007-7-15 18:19:19 >

Copied the following app from http://java.sun.com/docs/books/tutorial/uiswing/

/**

* CelsiusConverter.java is a 1.4 application that

* demonstrates the use of JButton, JTextField and

* JLabel. It requires no other files.

*/

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class CelsiusConverter implements ActionListener {

JFrame converterFrame;

JPanel converterPanel;

JTextField tempCelsius;

JLabel celsiusLabel, fahrenheitLabel;

JButton convertTemp;

public CelsiusConverter() {

//Create and set up the window.

converterFrame = new JFrame("Convert Celsius to Fahrenheit");

converterFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

converterFrame.setSize(new Dimension(120, 40));

//Create and set up the panel.

converterPanel = new JPanel(new GridLayout(2, 2));

//Add the widgets.

addWidgets();

//Set the default button.

converterFrame.getRootPane().setDefaultButton(convertTemp);

//Add the panel to the window.

converterFrame.getContentPane().add(converterPanel, BorderLayout.CENTER);

//Display the window.

converterFrame.pack();

converterFrame.setVisible(true);

}

/**

* Create and add the widgets.

*/

private void addWidgets() {

//Create widgets.

tempCelsius = new JTextField(2);

celsiusLabel = new JLabel("Celsius", SwingConstants.LEFT);

convertTemp = new JButton("Convert");

fahrenheitLabel = new JLabel("Fahrenheit", SwingConstants.LEFT);

//Listen to events from the Convert button.

convertTemp.addActionListener(this);

//Add the widgets to the container.

converterPanel.add(tempCelsius);

converterPanel.add(celsiusLabel);

converterPanel.add(convertTemp);

converterPanel.add(fahrenheitLabel);

celsiusLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));

fahrenheitLabel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));

}

public void actionPerformed(ActionEvent event) {

//Parse degrees Celsius as a double and convert to Fahrenheit.

int tempFahr = (int)((Double.parseDouble(tempCelsius.getText()))

* 1.8 + 32);

fahrenheitLabel.setText(tempFahr + " Fahrenheit");

}

/**

* Create the GUI and show it. For thread safety,

* this method should be invoked from the

* event-dispatching thread.

*/

private static void createAndShowGUI() {

//Make sure we have nice window decorations.

JFrame.setDefaultLookAndFeelDecorated(true);

CelsiusConverter converter = new CelsiusConverter();

}

public static void main(String[] args) {

//Schedule a job for the event-dispatching thread:

//creating and showing this application's GUI.

javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

createAndShowGUI();

}

});

}

}

Good luck.

prometheuzza at 2007-7-15 18:19:19 >