学生成绩统计管理

package student_control class Grade {    private double english;    private double math;    private double chinese;         public Grade(double english, double math, double chinese) {        this.english = english;        this.math = math;        this.chinese = chinese;    }     public double total() {        return  english + math + chinese;    }         public void printTotal() {        System.out.println(total());    }         public double average() {        return total() / 3;    }         public void printAverage() {        System.out.println(average());    }    public double getEnglish() {        return english;    }     public void setEnglish(double english) {        this.english = english;    }     public double getMath() {        return math;    }     public void setMath(double math) {        this.math = math;    }     public double getChinese() {        return chinese;    }     public void setChinese(double chinese) {        this.chinese = chinese;    }}

public class Student {    String name;    Grade grade;    public Student(String name, Grade grade) {        this.name = name;        this.grade = grade;    }         public static void main(String[] args) {        Student s = new Student("李明", new Grade(90, 80, 70));        s.grade.printAverage();        s.grade.printTotal();    }}李明 90，80，7080.0240.0

原文地址：https://www.cnblogs.com/maskman/p/9102563.html