How to check if two words are anagrams

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Two words are anagrams of each other if they contain the same number of characters and the same characters. You should only need to sort the characters in lexicographic order, and determine if all the characters in one string are equal to and in the same order as all of the characters in the other string.

Here’s a code example. Look into Arrays in the API to understand what’s going on here.

public boolean isAnagram(String firstWord, String secondWord) {
     char[] word1 = firstWord.replaceAll("[\\s]", "").toCharArray();
     char[] word2 = secondWord.replaceAll("[\\s]", "").toCharArray();
     Arrays.sort(word1);
     Arrays.sort(word2);
     return Arrays.equals(word1, word2);
}

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