ipstatisticapp.java

以IP地址为例

//package ipstatistic;

import java.awt.Toolkit;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import java.awt.Dimension;
/**
 * @author Liangwen 2006/8/1
 */
public class IPStatisticApp {
    boolean packFrame = false;
    public IPStatisticApp() {
        IPStatisticFrame frame = new IPStatisticFrame();
        if (packFrame) {
            frame.pack();
        } else {
            frame.validate();
        }
        //居中显示窗口
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension frameSize = frame.getSize();
        if (frameSize.height > screenSize.height) {
            frameSize.height = screenSize.height;
        }
        if (frameSize.width > screenSize.width) {
            frameSize.width = screenSize.width;
        }
        frame.setLocation((screenSize.width - frameSize.width) / 2,
                          (screenSize.height - frameSize.height) / 2);
        frame.setVisible(true);
    }
    /*程序入口
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.
                                             getSystemLookAndFeelClassName());
                } catch (Exception exception) {
                    exception.printStackTrace();
                }

                new IPStatisticApp();
            }
        });
    }
}