makeOutWord.java

/*
Given an "out" string length 4, such as "<<>>", and a word, return a new string where the word is in the middle of the out string, e.g. "<<word>>". Note: use str.substring(i, j) to extract the String starting at index i and going up to but not including index j.

makeOutWord("<<>>", "Yay") → "<<Yay>>"
makeOutWord("<<>>", "WooHoo") → "<<WooHoo>>"
makeOutWord("[[]]", "word") → "[[word]]"
*/
public String makeOutWord(String out, String word) {
  int len = out.length();
  String ny = out.substring(0,len/2) + word + out.substring((len/2));
  return ny;
}