Backslash in java

Question

I have a problem with strings saved in a database, like this for example: \"311\\315_316\\336_337\". They have only one backslash and this is a problem in java. Wh

Answer 1

You could also use Unicode \ = \u005c

Example: "Folder\u005cSubfolder1\u005cSubfolder2"

Would result in the string "Folder\Subfolder1\Subfolder2"

You can see the full table here: http://jrgraphix.net/r/Unicode/0020-007F

Answer 2

in java, backslash \ has a special meaning. in order to remove it, escape it with another backslash \\

try this:

s.replaceAll("\\", "\\\\");

Answer 3

The data in the database is OK, and you don't have to replace anything. String literals, written directly in the Java code, must have their backslash escaped by another backslash:

String s = "311\\315_316\\336_337";
System.out.println(s); // prints 311\315_316\336_337

But if you get those values from the database, you don't have anything to do:

String s = resultSet.getString(1);
System.out.println(s); // should print 311\315_316\336_337

Answer 4

In java strings, the backslash character is a control character. If you wish to include a literal backslash in a string, you must escape it with another backslash. e.g. "\\"