Java : how to replace my last char in a string

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?

http://stackoverflow.com/questions/1660034/replace-last-part-of-string — Ajinkya, Oct 11 '12 at 05:51

Matei Suica · Accepted Answer · 2012-10-11T06:18:08.847

6

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

edited Oct 11 '12 at 06:18

answered Oct 11 '12 at 05:45

Matei Suica

Should be `bowlNumber.length()` as length is a function. – Arun Kumar Oct 11 '12 at 05:59
1

Wrong output. It will print only 12 not 1.2. – Arun Kumar Oct 11 '12 at 06:01
1

true ... true ... i wrote it in a hurry just as an ideea... i think i've corrected now... – Matei Suica Oct 11 '12 at 06:18

score 3 · Answer 2 · edited Oct 11 '12 at 05:56

3

String bowlNumber="1.1";
String replaceEnd = bowlNumber.replaceAll(".$", "2");
System.out.println(replaceEnd);

The OutPut is: 1.2

edited Oct 11 '12 at 05:56

bright

answered Oct 11 '12 at 05:48

score 3 · Answer 3 · answered Oct 11 '12 at 05:56

3

Try following code:

    String bowlNumber = "1.1";
    bowlNumber=bowlNumber.substring(0, bowlNumber.length()-1)+"2";
    System.out.println(bowlNumber);

Output

1.2

answered Oct 11 '12 at 05:56

Arun Kumar

3 Answers3