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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)
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You are viewing a single comment's thread. Return to all comments →
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.
(I wanted to try to not use Arrays and Hashmaps)