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  1. Prepare
  2. Java
  3. Strings
  4. Java Anagrams
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Java Anagrams

  • jenthuyngo
     + 1 comment

    Hello, can someone knowledgable help me understand why this code does not work? It seems replaceFirst(regex, replacement) doesn't work the way I expect it to from https://www.w3schools.com/java/ref_string_replacefirst.asp.

    a = a.toLowerCase();
b = b.toLowerCase();
        
if(a.length() != b.length()) { return false; }
        
for(int i = 0; i < b.length(); i++) {
	a.replaceFirst(String.valueOf(b.charAt(i)), "");
	// a.replaceFirst(b.substring(i, i+1), "");
}

return a.isEmpty();

    (I wanted to try to not use Arrays and Hashmaps)