Slice string in java

Question

How slice string in java? I'm getting row's from csv, and xls, and there for example data in cell is like

14.015_AUDI

How can i say java that it must look only on part before _ ? So after manipulating i must have 14.015. In rails i'll do this with gsub, but how do this in java?

Answer 1

You can use String#split:

String s = "14.015_AUDI";
String[] parts = s.split("_"); //returns an array with the 2 parts
String firstPart = parts[0]; //14.015

You should add error checking (that the size of the array is as expected for example)

Answer 2

Instead of split that creates a new list and has two times copy, I would use substring which works on the original string and does not create new strings

String s = "14.015_AUDI";
String firstPart = s.substring(0, s.indexOf("_"));