Learn CS Online: Double Char (Java)

Kotlin

Java

Solve: Double Char

Imported By: Geoffrey Challen

/ Version: 2021.7.0

/ Adapted from CodingBat

Given a non-null String, return a new String where every character in the original input is doubled. So "The" yields "TThhee".

For this problem we're expecting only a method.

Don't define a class, include modifiers like static or public, add import statements, or add code outside the method declaration.

String doubleChar(String input) {
  return ""; // You may need to remove this starter code
}

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