java学生成绩管理系统

注：这个程序要结合下面3个类才能运行：学生信息可以自己加/*1编写一个学生成绩管理程序。学生的属性包括学号、姓名、年龄等。每个学生要学习若干课程，每门课程有平时成绩、期中考试成绩、实习成绩、期末考试成绩以及总评成绩等多个成绩，其中平时成绩的数目不定（因为不同课程的教师布置的平时作业数不同），而总评成绩是其它成绩的平均值。 请先设计合理的对象容器类存放这些信息，然后设计程序完成以下功能： 1）列出某个学生的所有成绩； 2）列出某门课程每个学生的总评成绩，及所有学生总评成绩的总评分； 3）分区段统计某门课程的学生总评成绩，例如60 分以下的学生人数、60 至70 分的学生人数等。 根据兴趣，你还可实现其它一些功能。请仔细设计和组织你的类和使用的集合类对象。*/package com.geminno.day730.homework12;import java.util.ArrayList;import java.util.List;public class TestStudentManage public static void main(String args) List students = new ArrayList();/实例化对象List courses = new ArrayList();/实例化对象/第一个学生的信息：Course c = new Course(Web编程, 85, 69, 70, 75, 90);courses.add(c);c = new Course(编程思想, 95, 78, 86, 88, 80);courses.add(c);c = new Course(java编程, 90, 80, 75, 88, 92);courses.add(c);c = new Course(数据库,93,60,55,80,56);courses.add(c);Student s = new Student(2012, 张三, 20, 男, 计算机, courses);students.add(s);/第二个学生courses = new ArrayList();c = new Course(Web编程, 80, 70, 50, 55, 60);courses.add(c);c = new Course(编程思想, 95, 77, 80, 66, 88);courses.add(c);c = new Course(java编程, 70, 80, 71, 82, 60);courses.add(c);c = new Course(数据库,60,60,55,75,70);courses.add(c);s = new Student(2013, 晓红, 18, 女, 计算机, courses);students.add(s);/第三个学生信息courses = new ArrayList();c = new Course(Web编程, 80, 79, 70, 75, 88);courses.add(c);c = new Course(编程思想, 95, 88, 56, 88, 89);courses.add(c);c = new Course(java编程, 90, 60, 75, 80, 92);courses.add(c);c = new Course(数据库,93,60,55,86,60);courses.add(c); s = new Student(2014, 海伦, 20, 女, 计算机, courses);students.add(s);StudentManage sm = new StudentManage(students);sm.showScoreBySno(2013);sm.showStaticsScore(数据库);sm.showTotalScore(java编程);学生管理类：package com.geminno.day730.homework12;import java.util.List;public class StudentManage /类private List students;public StudentManage(List students) /构造函数super();this.students = students;public void showScoreBySno(String sno)/方法if(sno = null) return;/如果sno为空，则返回for(Student s: students)/遍历student集合if(s.getSno().equals(sno)/如果得到的学号和自己选的学号相等List courses = s.getCourses();/则得到相应的课程for(Course c : courses)/遍历course课程集合System.out.println(c);/输出break;/跳出for循环public void showTotalScore(String cname)/方法if(cname = null) return;/如果名字为空则返回int countStudent = 0;/定义整型初始值int totalScore = 0;/定义初始值System.out.println(选择+cname+有以下学生:);for(Student s : students)/遍历集合List courses = s.getCourses();for(Course c : courses)/遍历集合if(cname.equals(c.getCname()/如果名字和得到的名字相同countStudent +;/则相应的加1totalScore = totalScore +c.getTotalScore();System.out.println(s.getName()+totalScore:+c.getTotalScore();/输出System.out.println(所有学生总评成绩的总评分：+(totalScore / countStudent);public void showStaticsScore(String cname)/方法if(cname = null) return;/如果名字为空则返回int under60 = 0;/定义初始值int between6070 = 0;/定义初始值for(Student s : students)/遍历集合List courses = s.getCourses();for(Course c : courses)/遍历集合if(cname.equals(c.getCname()if(c.getTotalScore()60)/如果小于60under60 +;/则加1else if(c.getTotalScore()=70)/如果在60和70之间between6070 +;/则加1System.out.println(分数在60以下的：+under60);/输出System.out.println(分数在60到70的：+between6070);学生类：package com.geminno.day730.homework12;import java.util.List;public class Student private String sno;private String name;private int age;private String gender;private String major;private List courses;public String getSno() return sno;public void setSno(String sno) this.sno = sno;public String getName() return name;public void setName(String name) = name;public int getAge() return age;public void setAge(int age) this.age = age;public String getGender() return gender;public void setGender(String gender) this.gender = gender;public String getMajor() return major;public void setMajor(String major) this.major = major;public List getCourses() return courses;public void setCourses(List courses) this.courses = courses;public Student(String sno, String name, int age, String gender, String major, List courses) super();this.sno = sno; = name;this.age = age;this.gender = gender;this.major = major;this.courses = courses;课程类：package com.geminno.day730.homework12;public class Course private String cname;private int usuallyScore;private int middleScore;private int praticeScore;private int finalScore;private int totalScore;public String getCname() return cname;public void setCname(String cname) ame = cname;public int getUsuallyScore() return usuallyScore;public void setUsuallyScore(int usuallyScore) this.usuallyScore = usuallyScore;public int getMiddleScore() return middleScore;public void setMiddleScore(int middleScore) this.middleScore = middleScore;public int getPraticeScore() return praticeScore;public void setPraticeScore(int praticeScore) this.praticeScore = praticeScore;public int getFinalScore() return finalScore;public void setFinalScore(int finalScore) this.finalScore = finalScore;public int getTotalScore() return totalScore;public void setTotalScore(int totalScore) this.totalScore = totalScore;public Course(String cname, int usuall