How to split a file path to get the file name?

Question

I have this string in my Android Application:

/storage/emulated/0/temp.jpg

I need manipulate the string and to split the string for this output:

temp.jpg

I need always take the last element of the string.

How to this output in java?

I would greatly appreciate any help you can give me in working this problem.

I notice you've accepted one of the string splitting answers as your preferred answer. Do check the duplicate I've suggested, since you should be using `File` for this. — Duncan Jones, Sep 24 '14 at 14:32

score 38 · Answer 1 · edited Jun 20 '20 at 09:12

38

This is not a string splitting exercise

If you need to get a file name from a file path, use the File class:

File f = new File("/storage/emulated/0/temp.jpg");
System.out.println(f.getName());

Output:

temp.jpg

edited Jun 20 '20 at 09:12

Community

1
1

answered Sep 24 '14 at 14:16

Duncan Jones

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Coming from a C++ background, using File just to substr is kind of a turn off for me. I mean, it's very inefficient and you need to instantiate an object just to do a trivial thing. – Bawenang Rukmoko Pardian Putra May 07 '18 at 00:21
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@BawenangRukmokoPardianPutra it may not be trivial if the path uses different kind of separators based on the OS. – arg20 May 08 '18 at 05:38
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Exactly. Always use the built-in tools until your careful instrumentation shows this is the crux of your performance issues. – Duncan Jones May 08 '18 at 11:39
1

I see. That makes sense. – Bawenang Rukmoko Pardian Putra Jun 24 '18 at 04:27

nano_nano · Accepted Answer · 2021-02-24T22:00:06.617

12

one another possibility:

String lStr = "/storage/emulated/0/temp.jpg";
lStr = lStr.substring(lStr.lastIndexOf("/")+1);
System.out.println(lStr);

edited Feb 24 '21 at 22:00

answered Sep 24 '14 at 14:15

nano_nano

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This produces the output `/temp.jpg` since substring is inclusive, and this is not the output that OP desires. In lieu of editing this answer, I would recommend accepting the answer that uses `File` instead. – jewbix.cube Feb 23 '21 at 01:10

score 4 · Answer 3 · edited May 23 '17 at 11:50

4

You can do it with string split: How to split a string in Java

String string = "/storage/emulated/0/temp.jpg";
String[] parts = string.split("/");
String file= parts[parts.length-1];

edited May 23 '17 at 11:50

Community

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answered Sep 24 '14 at 14:14

arlistan

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Don't hard code 4 he may have different lengths try parts.length - 1. – brso05 Sep 24 '14 at 14:18

score 3 · Answer 4 · edited Sep 24 '14 at 14:28

3

Try this:

String path= "/storage/emulated/0/temp.jpg";
String[] parts = path.split("/");
String filename;
if(parts.length>0)
    filename= parts[parts.length-1];

edited Sep 24 '14 at 14:28

Duncan Jones

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answered Sep 24 '14 at 14:19

Jatin

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score 0 · Answer 5 · answered Sep 24 '14 at 14:15

String string = "/storage/emulated/0/temp.jpg";
String[] splitString = null;
splitString = string.split("/");
splitString[splitString.length - 1];//this is where your string will be

Try using the String function split. It splits the string by your input and returns an array of strings. Just access the last element of the array in your case.

How to split a file path to get the file name?

5 Answers5

This is not a string splitting exercise

Linked

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