Change a characters in a text

Question

I need to change a character at a time, with buttons, in a text, for example:

abcdefg

With button 1) change only the letter "a" but not the other letters;

With button 2) change only the letter "b" but not the other letters;

etc.

I have seen several methods that are not in my case.

I would like some advice to know, except obviously the script of buttons, what is the easiest method to solve this problem.

Thanks.

Ned Murphy · Accepted Answer

You can look into using the String.replace() method. Another option is to just use String.split(remove_letter).join(replacement);

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