Question

I have three part string with each part seperated by $ symbol
For example,

String s = "abc$efg$xyz";

Now when I split it using split method like this:

String values[] = s.split("$");

It values array contains that entire string as a single element.

But when I use this:

String values[]=s.split("\\$");

It perfectly works what I wanted meaning
now the values array contains abc,efg and xyz on index 0,1 and 2 respectively.

I was wondering why that first split didn’t work as I used similar split when splitting on a single white space using split(" ");

Answer 1

Because the character $ is a reserved token used in regular expressions to mark the end of a line. That’s why you have to escape it using \\.