编写一个学校School泛型类和一个班级Class泛型类，编写一个学生Student普通类。三个类之间的关系是：学校里有多个班级，班级里有多个学生。使用泛型类嵌套泛型类的方式实现以上场景。
代码如下：
package com.homework.lhh; public class Ex05 { public static void main(String[] args) { /* * Students stu = new Students("小怪兽", 18); Class<Students> cla = new * Class<Students>(stu); School<Class<Students>> sho = new * School<Class<Students>>(cla); * System.out.println(sho.getData().getData().toString()); */ //设置班级数，以及班级中学生信息 Students[] class01 = { new Students("小怪兽", 18, 1001), new Students("奥特玛", 17, 1002), new Students("伊丽莎白", 18, 1003), new Students("山鸡", 19, 1004), new Students("威廉姆斯", 18, 1005) }; Students[] class02 = { new Students("小小", 18, 1006), new Students("嗷嗷", 17, 1007), new Students("依依", 18, 1008), new Students("吉吉", 19, 1009), new Students("微微", 18, 1010) }; Students[] class03 = { new Students("兽兽", 18, 1011), new Students("特特", 17, 1012), new Students("丽丽", 18, 1013), new Students("姗姗", 19, 1014), new Students("思思", 18, 1015) ,new Students("奥利奥", 17, 1016)}; //用一个班级信息的数组存放所有的班级 @SuppressWarnings({ "unchecked", "rawtypes" }) Class<Students>[] classinfo = new Class[] { new Class(class01), new Class(class02), new Class(class03) }; //用一个学校的数组显示所有的班级 @SuppressWarnings({ "unchecked", "rawtypes" }) School<Class<Students>> school = new School(classinfo); int num = 0; for (int i = 0; i < school.getArray().length; i++) { System.out.println("第" + (i + 1) + "班学生信息为："); num = 0; for (int j = 0; j < school.getArray()[i].getArray().length; j++) { System.out.println(school.getArray()[i].getArray()[j]); num++; } System.out.println((i + 1) + "班一共有" + num + "名学生"); System.out.println(); } } } class School<T> { T[] array; public T[] getArray() { return array; } public void setArray(T[] array) { this.array = array; } public School(T[] array) { super(); this.array = array; } } class Class<T> { T[] array; public Class(T[] array) { super(); this.array = array; } public T[] getArray() { return array; } public void setArray(T[] array) { this.array = array; } } class Students { private String name; private int age; private int id; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public Students(String name, int age, int id) { super(); this.name = name; this.age = age; this.id = id; } @Override public String toString() { return "姓名：" + name + "\t年龄：" + age + "岁\t学号：" + id; } }运行结果如下：
