新手送分题（又是无法显示）！！

Question

import java.applet.Applet;
import java.awt.*;
import java.lang.*;public class MyApplet4 extends Applet
{  
  private TextField hostField;
    public void init()
      {   
          Panel hostPanel = new Panel();
          hostPanel.setLayout(new GridLayout(2, 1));
          hostPanel.add(new Label("Host"));
          hostField = new TextField("YourCompany.com"); 
                  // 由 读 者 填 其 邮 件 服 务 器IP
          hostPanel.add(hostField);
          Container contentPane = getContentPane();
 contentPane.add(hostPanel );
          
        }
  public void paint(Graphics g)
{
  g.drawString("test",30,30); 
}
}

Answer 1

public void init()
      {   Panel hostPanel = new Panel();
          hostPanel.setLayout(new GridLayout(2, 1));
          hostPanel.add(new Label("Host"));
          hostField = new TextField("YourCompany.com"); 
                  // 由 读 者 填 其 邮 件 服 务 器IP
          hostPanel.add(hostField);
          add(hostPanel);
          ~~~~~~~~~~~~~~~~加这一句
        }

Answer 2

感谢rinehart和hexiaofeng!!!
问题解决了！
hexiaofeng的答案我试过了，提示getContentPane方法出错！
rinehart答案很好地解决了问题！
给分～～～～

Answer 3

不好意思！！　搞错了！
应该是hexiaofeng的答案解决了问题！！