多个继承..类需要扩展abstractHandler以及Applet

Question

我正在尝试制作一个自动化向导，该向导将从系统中获取一些文件（通过命令处理程序）并制作其相关的小程序。

我将尝试解释我的观点。

我为新命令“newModule”制作了一个插件，该命令通过“newModuleHandler.java”处理。所以newModuleHandler扩展了AbstractHandler。

现在我想制作一个向导（小程序）来帮助我完成“newModule”命令所需的某些选择。所以 newModuleHandler 也扩展了 Applet。

我写了类似这样的 newModuleHandler 。

    package archetypedcomponent.commands;

    import org.eclipse.core.commands.AbstractHandler;
    import org.eclipse.core.commands.ExecutionEvent;
    import org.eclipse.core.commands.ExecutionException;
    import java.applet.*;// required when you create an applet 
    import java.awt.Graphics;


    public class newModuleHandler extends AbstractHandler {

    @Override
public boolean isEnabled() {
    // TODO Auto-generated method stub
    return true;
}

@Override
public boolean isHandled() {
    // TODO Auto-generated method stub
    return true;
}

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    // TODO Auto-generated method stub

    return null;
}

public class HelloWorld extends Applet 
{
    // The method that will be automatically called  when the applet is started 
     public void init() 
     { 
         // It is required but does not need anything. 
         System.out.println("Applet initiated");
     } 


    // This method gets called when the applet is terminated 
    // That's when the user goes to another page or exits the browser. 
     public void stop() 
     { 
         //     no actions needed here now.
         System.out.println("Applet Stopped");
     } 


    // The standard method that you have to use to paint things on screen 
    // This overrides the empty Applet method, you can't called it "display" for example.

     public void paint(Graphics g) 
     { 
         //method to draw text on screen 
         // String first, then x and y coordinate. 
         System.out.println("Applet in paint");
          g.drawString("Hey hey hey",20,20); 
          g.drawString("Hellooow World",20,40);

     }
}

现在

，当给定命令时，将调用此方法

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    // TODO Auto-generated method stub

    return null;
}

，并且必须在其中调用小程序。 我的问题是如何调用它？

======================================= =================================================== === 我能够解决我的问题，但我在这里回复，以便也面临同样问题的人可以指导

这是我的新 "newModuleHandler.java"

    package archetypedcomponent.commands;

    import org.eclipse.core.commands.AbstractHandler;
   import org.eclipse.core.commands.ExecutionEvent;
  import org.eclipse.core.commands.ExecutionException;
    import java.applet.*;// required when you create an applet 
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;

import javax.swing.JFrame;


public class newModuleHandler extends AbstractHandler {

    @Override
public boolean isEnabled() {
    // TODO Auto-generated method stub
    return true;
}

@Override
public boolean isHandled() {
    // TODO Auto-generated method stub
    return true;
}

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    // TODO Auto-generated method stub
//  call applet here
     JFrame jp1 = new JFrame();
        Loader a=new Loader ();
        jp1.getContentPane().add(a, BorderLayout.CENTER);
        jp1.setSize(new Dimension(500,500));
        jp1.setVisible(true);

    return null;
}

}

我做了一个新的 Loader.java 扩展了 applet

    package archetypedcomponent.commands;

    import java.applet.Applet;
    import java.awt.Graphics;

    public class Loader extends Applet 
    {
// The method that will be automatically called  when the applet is started 
 public void init() 
 { 
     // It is required but does not need anything. 
     System.out.println("Applet initiated");
//   Graphics g=new ;

 } 


// This method gets called when the applet is terminated 
// That's when the user goes to another page or exits the browser. 
 public void stop() 
 { 
     //     no actions needed here now.
     System.out.println("Applet Stopped");
 } 


// The standard method that you have to use to paint things on screen 
// This overrides the empty Applet method, you can't called it "display" for example.

 public void paint(Graphics g) 
 { 
     //method to draw text on screen 
     // String first, then x and y coordinate. 
     System.out.println("Applet in paint");
      g.drawString("Hey hey hey",20,20); 
      g.drawString("Hellooow World",20,40);

 }

}

现在，无论我需要 applet 做什么，都可以在 Loader 的绘制中完成。

Answer 1

一个小程序可以有多个对象，因此在该小程序引用的其他某个类中扩展 AbstractHandler。