leetcode500 Java1.8 Stream

​​leetcode500. Keyboard Row​​

题目大意为求其输入的字符在键盘上是否为同一行

class Solution {
    public String[] findWords(String[] words) {
        return Stream.of(words).filter(s -> s.toLowerCase().matches("[qwertyuiop]*|[asdfghjkl]*|[zxcvbnm]*")).toArray(String[]::new);
    }
}