Package g0401_0500.s0500_keyboard_row

Class Solution

java.lang.Object
g0401_0500.s0500_keyboard_row.Solution
public class Solution extends java.lang.Object
500 - Keyboard Row.

Easy

Given an array of strings words, return the words that can be typed using letters of the alphabet on only one row of American keyboard like the image below.

In the American keyboard:

  • the first row consists of the characters "qwertyuiop",
  • the second row consists of the characters "asdfghjkl", and
  • the third row consists of the characters "zxcvbnm".

Example 1:

Input: words = [“Hello”,“Alaska”,“Dad”,“Peace”]

Output: [“Alaska”,“Dad”]

Example 2:

Input: words = [“omk”]

Output: []

Example 3:

Input: words = [“adsdf”,“sfd”]

Output: [“adsdf”,“sfd”]

Constraints:

  • 1 <= words.length <= 20
  • 1 <= words[i].length <= 100
  • words[i] consists of English letters (both lowercase and uppercase).

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.lang.String[]
    findWords(java.lang.String[] words)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • findWords

      public java.lang.String[] findWords(java.lang.String[] words)