java:练习学校学生

一个学生对应一个学校

一个学校对应多个学生

Student类，School类，Demo测试类

Student:

public class Student {		private String name;	private int age;	private School school;							public Student() {		super();	}	public Student(String name, int age) {				this.name = name;		this.age = age;			}	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 School getSchool() {		return school;	}	public void setSchool(School school) {		this.school = school;	}			public String toString()	{		return "学生姓名："+this.name+",学生年龄"+this.age;	}		}

　　

School类

public class School {	private String name;	private List
     
       allStudents;			public School()	{		this.allStudents = new ArrayList
      
       ();	}		public School(String name)	{		this();		this.name = name;	}		public String getName() {		return name;	}		public void setName(String name) {		this.name = name;	}		public List
       
         getAllStudents() {		return allStudents;	}			public String toString()	{		return "学校信息：" + this.name;	}				}
       
      
     

　　

测试;

//一个学生对应一个学校		//一个学校对应多个学生				School school = new School("zhdzdx");		Student stu1 = new Student("张三",22);		Student stu2 = new Student("李四",33);		Student stu3 = new Student("王五",22);		school.getAllStudents().add(stu1);		stu1.setSchool(school);		school.getAllStudents().add(stu2);		stu2.setSchool(school);		school.getAllStudents().add(stu3);		stu3.setSchool(school);		System.out.println(school);		Iterator  iter = school.getAllStudents().iterator();		while(iter.hasNext())		{			Student stu = (Student) iter.next();			System.out.println(stu);		}