package com.imooc.set;

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

public class SetDemo1 {
	public void showSet(Iterator it) {
		while (it.hasNext()) {
			System.out.print(it.next() + "   ");
		}
		System.out.println();
		System.out.println("*******************");
	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Set set = new HashSet();
		set.add("white");
		set.add("blue");
		set.add("red");
		set.add("black");
		set.add("yellow");
		Iterator it = set.iterator();

		SetDemo1 sd = new SetDemo1();
		sd.showSet(it);
		//sd.showSet(it);需要重新赋值
		set.add("green");
		it = set.iterator();
		sd.showSet(it);
		set.add("white");
		it = set.iterator();
		sd.showSet(it);
	}

}

​