Java 如何打印出一个哈希集
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时间：2020-08-13 02:52:55 来源:igfitidea点击:
How to print out a hashset
提问by user3097544
I just now started working with hashsets and I am trying to print it out but all it prints out is its location i tried Iterator and .toString() here is my code :
我刚刚开始使用哈希集，我正在尝试将其打印出来，但它打印出来的只是它的位置，我尝试了 Iterator 和 .toString() 这是我的代码：
char [] a = RandomWord.toCharArray();
HashSet<char[]> set = new HashSet<char[]>();
set.add(a);
Iterator<char[]> itr = set.iterator();
while(itr.hasNext()){
System.out.println(" Iterating over HashSet in Java current object: " + itr.next().toString());
}
}
采纳答案by Alexis C.
You have to print the content of your array. Arrays.toString(char[] a)will do that for you :
您必须打印数组的内容。Arrays.toString(char[] a)会为你做到这一点：
System.out.println(" Iterating over HashSet in Java current object: " + Arrays.toString(itr.next()));
