定义Student类

public class Test1Student {
   public void main(String[] args){
       Test1Student stu1 = new Test1Student();
       Test1Student stu2 = new Test1Student();
       stu1.num=110;
       stu1.name="张三";
       stu1.age=18;
       stu1.sex = '男';
       stu1.chinese = 96;
       stu1.math = 97;
       stu1.english = 99;
       stu1.learn();
       stu1.exam();
       stu2.num=111;
       stu2.name="李四";
       stu2.age=17;
       stu2.sex = '女';
       stu2.chinese = 94;
       stu2.math = 93;
       stu2.english = 92;
       stu2.learn();
       stu2.exam();
   }
   //属性
   int num;
   String name;
   int age;
   char sex;
   int chinese;
   int math;
   int english;
   //方法--->学习
   public void learn(){
       System.out.println("学号:"+num+"\n"+"姓名:"+name+"\n"+"性别:"+sex+"\n"+"语数英成绩为"+chinese+"\t"+math+"\t"+english+"\n"+"好好学习!");
   }
   //方法--->考试
   public void exam(){
       System.out.println("认真考试!");
   }
}
}