package com.imooc.student;

import java.util.HashMap;

import java.util.Map;

import java.util.Set;

public class School {

Map<String,Banji> BanjiMap;//存放班级的集合

//构造方法

public School() {

BanjiMap=new HashMap<String,Banji>();

}

/**

*  添加班级

* @param banji

*/

public void addBanji(Banji banji){

//班级编号作为key值

BanjiMap.put(banji.getClassName(),banji);

}

/**

*  删除班级

* @param banji

*/

public void deleteBanji(Banji banji){

BanjiMap.remove(banji.getClassId());

System.out.println("删除成功！");

}

/**

* 通过班级名称查询班级

* @param className

* @return

*/

public Banji searchByName(String className) {

Banji banji=null;

Set<String> BanjiSet=BanjiMap.keySet();

for(String s:BanjiSet) {

if(s.equals(BanjiSet)) {

banji=BanjiMap.get(s);

break;

}

}

return banji;

}

/**

*  对各班语文成绩按平均分进行由大到小排序

*/

public void sortChineseByAverage() {

}

/**

* 对各班数学成绩按平均分进行由大到小排序

*/

public void sortMathByAverage() {}

/**

*  显示所有班级名称

*/

public void displayBanJiName() {

Set<String> BanjiSet=BanjiMap.keySet();

System.out.println("播放列表名称为：");

for(String s:BanjiSet) {

System.out.println(s);

}

}

public Map<String, Banji> getBanjiMap() {

return BanjiMap;

}

public void setBanjiMap(Map<String, Banji> banjiMap) {

BanjiMap = banjiMap;

}

}

//学校的测试方法

public void testSchool(){

Student stu1=new Student("s001","张三",90,100);

Student stu2=new Student("s002","李四",100,90);

Student stu3=new Student("s003","王五",110,80);

//创建班级

Banji mainBanji=new Banji("b001","班级1");

//将学生添加进班级中

mainBanji.addStudent(stu1);

mainBanji.addStudent(stu2);

System.out.print("b001");

mainBanji.displayAllStudent();

//定义一个新的班级列表

Banji favouriteBanji=new Banji("b002","班级2");

//将学生添加进班级中

favouriteBanji.addStudent(stu3);

favouriteBanji.addStudent(stu2);

System.out.print("b002");

favouriteBanji.displayAllStudent();

//将两个班级添加到班级集合中

School sch=new School();

sch.addBanji(mainBanji);

sch.addBanji(favouriteBanji);

sch.displayBanJiName();

//根据班级列表名字查询班级列表信息，并显示所有学生

Banji banji=sch.searchByName("班级2");

banji.displayAllStudent();