title: How do I convert unicode codepoints to their character representation?
body: <p>How do I convert strings representing code points to the appropriate character?</p>
  
  <p>For example, I want to have a function which gets <code>U+00E4</code> and returns <code>ä</code>.</p>
  
  <p>I know that in the character class I have a function <code>toChars(int codePoint)</code> which takes an integer but there is no function which takes a string of this type.</p>
  
  <p>Is there a built in function or do I have to do some transformation on the string to get the integer which I can send to the function?</p>