Removing a part of a string before second /

I have following string:

String path="/folder1/folder2/folder3/";

I want to remove the first path of the String, so that it becomes:

String path="/folder2/folder3/";

So, what I basically need is to know the index of second backslash and I can use subString method then.

In order to know the 2nd position of /, I can run a for loop and check every character.

But I think there must be a better solution. I want to improve my code knowledge. Any help will be highly appreciated.