securityapp.java

21天学通java的示例程序源代码

//SecurityApp.java

package com.wrox.security;

import java.awt.*;
import java.awt.event.*;

/**
 * This class demonstrates the Java security features by attempting to
 * perform a few privileged operations which only applications may normally
 * do. This class can be run both as an applet and as an application.
 */
public class SecurityApp extends java.applet.Applet {

  private SecurityTestWindow window;

  /**
   * Called after the applet is loaded into the browser
   */
  public void init() {
    window = new SecurityTestWindow("Applet Security Test");
    window.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        window.hide();
      } 
    });
    window.showTestResults();
  } 

  /**
   * Called when the page is being closed
   */
  public void destroy() {
    window.dispose();
  } 

  /**
   * Main method. This allows the test to be run as a normal application.
   */
  public static void main(String[] args) {
    SecurityTestWindow window = 
      new SecurityTestWindow("Application Security Test");
    window.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      } 
    });
    window.showTestResults();
  } 
}