Java > String-1 > left2 (CodingBat Solution)

Problem:

Given a string, return a "rotated left 2" version where the first 2 chars are moved to the end. The string length will be at least 2.

left2("Hello") → "lloHe"
left2("java") → "vaja"
left2("Hi") → "Hi"


Solution:

public String left2(String str) {
  return str.substring(2, str.length()) + str.substring(0,2);
}

3 comments:

  1. AnonymousSeptember 13, 2020 at 2:52 PM

    public String left2(String str) {
    return str.substring(2) + str.charAt(0) + str.charAt(1);
    }

    ReplyDelete
  2. UnknownFebruary 17, 2022 at 12:08 AM

    return str.substring(2) + str.substring(0,2);

    str.length()?? :O

    ReplyDelete