mainframe.java

监视内存的使用情况,Java编程可通过编译运行

package jmemorydemo;

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

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class MainFrame extends JFrame {
  private JPanel contentPane;
  private BorderLayout borderLayout1 = new BorderLayout();
  private JProgressBar jProgressBar1 = new JProgressBar();
  private JLabel jLabel1 = new JLabel();
  private JLabel jLabel2 = new JLabel();

  //Construct the frame
  public MainFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(MainFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(304, 215));
    this.setTitle("JMemoryDemo");
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("Memory Monitor");
    jProgressBar1.setOrientation(JProgressBar.VERTICAL);
    jProgressBar1.setFont(new java.awt.Font("Dialog", 0, 14));
    jProgressBar1.setToolTipText("");
    jProgressBar1.setStringPainted(true);
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 14));
    jLabel2.setText("");
    contentPane.add(jProgressBar1,  BorderLayout.CENTER);
    contentPane.add(jLabel1, BorderLayout.NORTH);
    contentPane.add(jLabel2, BorderLayout.SOUTH);

    ProgressThread pThread = new ProgressThread(this.jProgressBar1,this.jLabel2);
    pThread.start();
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
}