Question

Lets say I have a string whose format is “name_surname”. I mean there are 2 dynamic parts, and between them an underscore. I want to separate them and have in a variable the left part (name) and in another the right (surname).

Basically i want the reverse of this: String temp=name+"_"+surname;

Answer 1

Use split();

String[] parts = temp.split("_");
String name = parts[0];
String surname = parts[1]; // <-- comment

Commented line will throw an ArrayIndexOutOfBoundsException if your name does not contain the underscore.