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 / 3;
        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("2017025425","马云",99,88,77);
        stu1.print();
        stu1.sum();
        stu1.average();
        stu1.max();
        stu1.min();
    }
}

运行结果：