Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.awt.Toolkit;

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.text.JTextComponent;

public class Main {
    /**
     * Set the text component in which only numerics (positive decimal integers
     * with character 0-9).
     * 
     * @param c
     *            the specified text component
     */
    public static void setTextComponetIntegerValid(final JTextComponent c) {
        c.addKeyListener(new KeyAdapter() {
            @Override
            public void keyTyped(KeyEvent e) {
                if (e.getKeyChar() != KeyEvent.VK_BACK_SPACE)
                    try {
                        Integer.valueOf(c.getText() + e.getKeyChar());
                    } catch (NumberFormatException nfe) {
                        e.consume();
                        Toolkit.getDefaultToolkit().beep();
                    }
            }
        });
    }
}