把这个ＪＡＶＡ文件编译成ＣＬＡＳＳ文件后

				import java.applet.*;
				import java.awt.*;
				import java.awt.event.*;
				import java.net.*;
				public class Example2 extends Applet implements ActionListener{
				  Button button;
				  URL url;
				  TextField text;
				  public void init(){
				    text=new TextField("http://",20);
				    button=new Button("ok");
				    add(new Label("Enter the net address:"));add(text);add(button);
				    button.addActionListener(this);
				  }
				  public void actionPerformed(ActionEvent ae){
				    if(ae.getSource()==button){
				      try{
				          url=new URL(text.getText().trim());
				      }
				      catch(MalformedURLException g){
				          text.setText("Awrong address!");
				      }
				      getAppletContext().showDocument(url);
				    }
				  }
				}