java/HashSet

編寫一個學生類，具有姓名，年齡，性別三個屬性,創建3個學生對象並保存到HashSet中，利用迭代器Iterator將集合裏所有學生姓名，年齡，性別打印出來。

public class Student {
	 public String name;
	 public int age;
	 public char sex;
	public Student(String name,int age,char sex){
		this.name=name;
		this.age=age;
		this.sex=sex;
	}
	public String  toString(){
		return "姓名："+this.name+"  年齡："+this.age+" 性別:"+this.sex;
		}

import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;


public class TestStudent {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
Student s1=new Student("老大",18,'女');
Student s2=new Student("老二",15,'女');
Student s3=new Student("老三",13,'男');
Set<Student> s=new HashSet<Student>();
s.add(s1);
s.add(s2);
s.add(s3);
for(Iterator<Student> a=s.iterator();a.hasNext();){
		System.out.println(a.next());
}
	}

}