Replace Space to Hyphen

Question

I am trying to replace a space character into a hyphen I have in my string.

String replaceText = \"AT AT\";
replaceText.replace(\' \', \'-\');

Answer 1

replaceText = replaceText.replace(' ', '-');

Strings are immutable, they cannot be changed after creation. All methods that somehow modify a string will return a new string with the modifications incorporated.