Java : how to replace my last char in a string [duplicate]

Question

I am trying to replace the last char in my String .

String bowlNumber = 1.1;

bowlNumber.replace(bowlNumber.charAt(bowlNumber.length-1), 2);

By this I am able to replace my last character i.e 1 to 2.. but the problem is as my first character is also 1 , it also changes that to 2.

What i want is to change 1.1 to 1.2 , but it makes 1.1 to 2.2

Any idea?

Answer 1

bowlNumber = bowlnNumber.substring(0,bowlNumber.length()-1) + "2";