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Oct 1st, 2014
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Java 0.19 KB | None | 0 0
  1.     String stringCharAt(str, idx) {
  2.         if (idx < 0 || str.length() < idx) {
  3.             return "";
  4.         } else {
  5.             return String.valueOf(str.charAt(idx));
  6.         }
  7.     }
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