how to extract first substring i a string containg /?

Question

I would like to extract ccadmin from /ccadmin/hrp/filelist ?

i know that i can get last substring using

String uri = "/ccadmin/hrp/filelist";
String commandKey = uri.substring(uri.lastIndexOf("/") + 1, uri.length());

but how to extract first Substring ccadmin?

We need more details. What are the assumptions? Can we assume the string you are parsing will always be the same format? — Jonathan Henson, Sep 05 '14 at 15:48
Also a possible duplicate of [Java: Getting a substring from a string starting after a particular character](http://stackoverflow.com/q/14316487/3224483), which is actually in Java. — Rainbolt, Sep 05 '14 at 15:51

score 7 · Accepted Answer · answered Sep 05 '14 at 15:49

7

If I understand your question, then you could use something like,

String uri = "/ccadmin/hrp/filelist";
String first = uri.substring(1, uri.indexOf("/", 2));
System.out.println(first);

Output is

ccadmin

answered Sep 05 '14 at 15:49

Elliott Frisch

RockOnRockOut · Answer 2 · 2014-09-05T16:06:44.513

3

Split the string by the / character:

String[] parts = uri.split("/");

parts[1] is what you want.

edited Sep 05 '14 at 16:06

answered Sep 05 '14 at 15:48

RockOnRockOut

1

This has the unfortunate side effect of doing a bunch of unnecessary work. – pamphlet Sep 05 '14 at 15:50
@pamphlet, can you please explain what you mean? – Chaitanya Sep 05 '14 at 15:51
2

@pamphlet true, the easiest solution is usually not the most efficient one – RockOnRockOut Sep 05 '14 at 15:52
1

Sure. This will split the entire uri, creating multiple strings. Of which only one is required. The generation of all those other strings is a waste. Elliott's solution doesn't suffer from this problem. – pamphlet Sep 05 '14 at 15:52
@RockOnRockOut Amen to that. – pamphlet Sep 05 '14 at 15:53
@Pshemo yeah, you were right, sorry. I edited my answer. – RockOnRockOut Sep 05 '14 at 16:07

score 0 · Answer 3 · answered Sep 05 '14 at 15:52

0

you can use this to split your string and then get the part of uri you need:

String uri = "/s/d/f";
        String[] parts = uri.split("/");
        String item = parts[1];
        System.out.println( item );

answered Sep 05 '14 at 15:52

Anton Selin

3 Answers3