java - removing semi colon from a string if the string ends with it

Question

I have a requirement in which I need to remove the semicolon if it is present at the end of the String(only at the end). I have tried the following code. But still it is not

Answer 1

Solution for only one semi-colon

// Don't use regular expressions if you don't need to.
if (text.endsWith(";")) {
    text = text.substring(0, text.length() - 1);
}

Slower solution for possibly more than one semi-colon

text.replaceAll(";+$", "");

Additionally, here are some other problems with the code you originally posted, for reference.

if(text.substring(text.length()-1) == ";"){

You can't compare strings with ==. Instead, you have to compare them with .equals(). This would be correctly written like this ...ength()-1).equals(";").

text.replaceAll(";", "");

This replaces all semicolons it finds. This means that if your string was some;thing;, it would turn it into something, but you want to only remove the last semicolon, like this: some;thing. To do this correctly, you need to look for the end of the string, using the special $ character like this:

text.replaceAll(";$", "");