Java > Warmup-1 > front3 (CodingBat Solution)

Problem:

Given a string, we'll say that the front is the first 3 chars of the string. If the string length is less than 3, the front is whatever is there. Return a new string which is 3 copies of the front.

front3("Java") → "JavJavJav"
front3("Chocolate") → "ChoChoCho"
front3("abc") → "abcabcabc"

Solution:

public String front3(String str) {
  if (str.length() <= 3)
    return str + str + str;
  else {
    String newString = str.substring(0,3); 
    return newString + newString + newString;
  }
}