Question

I’m getting pretty big input string into my method, but what I actually need is just first line of that string. Is it possible to extract just the first line of an already existing string?

Answer 1

You can use indexOf() to find the first line break, and substring() to take the substring from 0 to that line break

Edit: Example (assuming the line break is \n):

String str = "Line 1\nLine 2\nLine 3";
String firstLine = str.substring(0, str.indexOf("\n"));
//firstLine == "Line 1"