Re: decimal to binary converter - java

"Jeff Higgins" <>
Tue, 3 Jul 2007 17:25:52 -0400
sam20e wrote:

hi i need a help... i wanna write a java programmee to display the
binary number of the entered decimal number.

for ex : in t text area u should type a desimal number and press
"Convert" button to display its binary in the next txt field

need help mates, i need to write a programme.. i need the "JAVA CODES"

p.s : should use only 1 statement; stack

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

public class Converter
extends JPanel
implements ActionListener
  protected JTextField textField;
  protected JTextArea textArea;
  protected JButton button;

  public Converter()
    super(new BorderLayout());

    textField = new JTextField(20);
    textArea = new JTextArea(5, 20);
    button = new JButton("Convert");
    JScrollPane scrollPane = new JScrollPane(textArea,
    add(textField, BorderLayout.NORTH);
    add(scrollPane, BorderLayout.CENTER);
    add(button, BorderLayout.SOUTH);

  private String convert(String text)
    Integer i;
      i = Integer.valueOf(text);
    catch (NumberFormatException e)
      return "Not a valid integer";
    return Integer.toHexString(i);

  public void actionPerformed(ActionEvent evt)
    textArea.replaceRange("", 0, textArea.getText().length());
    String text = convert(textField.getText());

  private static void createAndShowGUI()
    JFrame frame = new JFrame("Converter");
    frame.add(new Converter());

  public static void main(String[] args)
    javax.swing.SwingUtilities.invokeLater(new Runnable()
      public void run()

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