Java 集合部分示例

package com.connect;

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

public class IteratorTest {


public static void main(String[] args) {

Set<String> s = new HashSet<String>();
s.add("苹果");
s.add("香蕉");
s.add("橘子");
Iterator<String> it = s.iterator();
while(it.hasNext()){
System.out.println(it.next()+"---------");
}

while(it.hasNext()){
System.out.println(it.next()+"**********");
}
}

}