How to trim a string after a specific character in java

Question

I have a string variable in java having value:

String result="34.1 -118.33\n<!--ABCDEFG-->"; 

I want my final string to contain the value:

String result="34.1 -118.33"; 

How can I do this? I'm new to java programming language.

Thanks,

Answer 1

You can use:

result = result.split("\n")[0]; 

Answer 2

Assuming you just want everything before \n (or any other literal string/char), you should use indexOf() with substring():

result = result.substring(0, result.indexOf('\n')); 

If you want to extract the portion before a certain regular expression, you can use split():

result = result.split(regex, 2)[0]; 

---

String result = "34.1 -118.33\n<!--ABCDEFG-->";  System.out.println(result.substring(0, result.indexOf('\n'))); System.out.println(result.split("\n", 2)[0]); 

 34.1 -118.33 34.1 -118.33 

(Obviously \n isn't a meaningful regular expression, I just used it to demonstrate that the second approach also works.)