setdemo.java

来自「自己编写的Java学习代码」· Java 代码 · 共 35 行

import java.util.*;
public class SetDemo
{
	public static void addString(){
		Set s = new HashSet();
		s.add("小明");
		s.add("小明");
		s.add("小红");
		Iterator iter = s.iterator();
		while(iter.hasNext()){
			String str = (String)iter.next();
			System.out.println(str);
		}
	}
	public static void addStudent(){
		Set s = new LinkedHashSet();
		Student s1 = new Student(1,"小明");
		Student s2 = new Student(2,"小强");
		Student s3 = new Student(3,"小红");
		s.add(s1);
		s.add(s2);
		s.add(s3);
		
		Iterator iter = s.iterator();
		while(iter.hasNext()){
			Student stu = (Student)iter.next();
			System.out.println(stu);
		}
		
	}
	public static void main(String args[]){
		//addString();
		addStudent();
	}
}