java输出各种学生成绩

 class stu
 {
     public String stuno;
     public String name;
     public float math;
     public float english;
     public float computer;
     public float sum;
     public float average;
     stu(String stuno1,String name1,float math1,float english1,float computer1) //构造函数
     {
         this.stuno = stuno1;
         this.name = name1;
         this.math = math1;
         this.english = english1;
         this.computer = computer1;
     }
     public void sum() //求和方法
     {
         sum = math + english + computer;
         System.out.println("sum = " + sum);
     }
     public void average() //求平均值方法
     {
         average = sum / ;
         System.out.println("average = " + average);
     }
     public void max() //求最大值方法
     {
         float max;
         if(math > english)
             if(math > computer)
                 max = math;
             else
                 max = computer;
         else
             if(english > computer)
                 max = english;
             else
                 max = computer;
         System.out.println("最高分为：" + max);
     }
     public void min() //求最小值方法
     {
         float min;
         if(math < english)
             if(math < computer)
                 min = math;
             else
                 min = computer;
         else
             if(english < computer)
                 min = english;
             else
                 min = computer;
         System.out.println("最低分为：" + min);
     }
     public void print() //输出方法
     {
         System.out.println("姓名:" + name + " 学号:" + stuno );
         System.out.println("数学成绩：" + math + " 英语成绩：" + english + " 计算机成绩:" + computer);
     }
 }
 class Student
 {
     public static void main(String args[])
     {
         stu stu1 = new stu("","马云",,,);
         stu1.print();
         stu1.sum();
         stu1.average();
         stu1.max();
         stu1.min();
     }
 }

运行结果：