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Editorial Team
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Asked: 2026-05-15T00:35:47+00:00

How can I find the length of a String without using the length() method

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How can I find the length of a String without using the length() method of String class?

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1 Answer

  1. Editorial Team

    • str.toCharArray().length should work.

    • Or how about:

      str.lastIndexOf("")

      Probably even runs in constant time 🙂

    • Another one

      Matcher m = Pattern.compile("$").matcher(str);
m.find();
int length = m.end();

    • One of the dumbest solutions: str.split("").length - 1

    • Is this cheating: new StringBuilder(str).length()? 🙂

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