Set集合是可以用迭代的方法遍历数组
package com.z.test;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
public class Test {
public static void main(String[] args) {
// TODO Auto-generated method stub
Set set= new HashSet<>();
set.add("a");
set.add("b");
set.add("s");
Iterator iter =set.iterator();
while(iter.hasNext()){
System.out.print(iter.next()+" ");
}
}
}
结果为 a b s