How to replace backward slash to forward slash using java?

Question

I'm importing a CSV file to MySQL database. This can be done using java.mysql support for forward slash in file path. If user gives the path

c:\upload\date\csv\sample.csv

MySQL doesn't support this type of path pattern. I want to search for backslashes in the path and replace them with a forward slash, to give this:

  c:/upload/date/csv/sample.csv

How is that done?

Bohemian · Accepted Answer · 2012-08-02T00:56:46.593

68

In java, use this:

str = str.replace("\\", "/");

Note that the regex version of replace, ie replaceAll(), is not required here; replace() still replaces all occurrences of the search term, but it searches for literal Strings, not regex matches.

edited Aug 02 '12 at 00:56

answered Jul 24 '11 at 05:02

Bohemian

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how to do reverse operation of the above like str=str.replace("\","//"); – srinivas gowda May 24 '17 at 08:38
@srinivasgowda if you mean you want to replace forward slashes with backslashes, just swap the parameters: `str = str.replace("/", "\\");` – Bohemian May 24 '17 at 09:21
No for single backward slash(\) to double forward slash(//) – srinivas gowda May 24 '17 at 09:32
@sri `str = str.replace("\\", "//");` – Bohemian May 24 '17 at 09:37
how to replace it globally – Umashankar Aug 24 '18 at 06:40
@Umashankar please read my answer: `replace()` replaces **all** occurrences - ie "globally" – Bohemian Aug 24 '18 at 07:03

score 12 · Answer 2 · answered Jul 24 '11 at 05:18

The String.replace(CharSequence, CharSequence) example provided by @PaulPRO and @Bohemian will work, but its better to use the String.replace(char, char) version. Slightly faster. Though you won't have a noticeable speed difference, its better to do such optimisations where possible.

String replacedStr = str.replace('\\', '/');

Paul · Answer 3 · 2011-07-24T05:11:28.703

8

If you have:

String s = "c:\\upload\\date\\csv\\sample.csv";

In Java, you can just use:

s = s.replace("\\", "/");

Which will make s equal to:

c:/upload/date/csv/sample.csv

edited Jul 24 '11 at 05:11

answered Jul 24 '11 at 05:05

Paul

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You need to escape the backslash. – Jeffrey Jul 24 '11 at 05:06

score 0 · Answer 4 · answered May 17 '23 at 18:15

0

For double back slash ("\\")

For Java you can use string.replaceAll("\\\\","/")

&

For Kotlin you can use string.replace("\\\\".toRegex(),"/")

answered May 17 '23 at 18:15

Vibhu Vikram Singh

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How to replace backward slash to forward slash using java?

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