import java.applet.*;
import java.awt.*;
public class ex71 extends Applet

    char name,tel;
    int age;
 public class smp
 {
  String name="evenice";
  int age=18;
  String tel="12345678";
 }
 public void paint(Graphics g)
 {
  g.drawString("name="+name,20,80);
  g.drawString("age="+age,20,100);
  g.drawString("tel="+tel,20,120);
   }
   public void init()
   {
    Applet smp=new Applet();
   }
} 为什么输出没有结果

修改后的代码：

import java.applet.*;
import java.awt.*;

public class ex71 extends Applet {

    // char name, tel;
    // int age;
    //
    // public class smp {
    // String name = "evenice";
    // int age = 18;
    // String tel = "12345678";
    // }

    public void paint(Graphics g) {
        String name = "evenice";
        int age = 18;
        String tel = "12345678";
        g.drawString("name=" + name, 20, 80);
        g.drawString("age=" + age, 20, 100);
        g.drawString("tel=" + tel, 20, 120);
    }

    public void init() {
        Applet smp = new Applet();
    }
}