How to Insert/Add Backslash Character in a String variable

Question

I have to get the path of a directory from Java Text field and store it on another string variable but it needs the code of java to add/insert \ after the colon : character.

String folderFath="D:\TF";

I need to add \ after the : character. I need to get string variable D:\\TF

You can use regex to match the `:` character and add a new \ after that. — Vipin Yadav, Dec 28 '17 at 05:34
what type of regex to match : and add \ to the specified string, please help. I also use this code replaceAll(Pattern.quote("\\"), Matcher.quoteReplacement("\\\\")) . it produce D: f — Mumtaz Khan, Dec 28 '17 at 06:36

score 0 · Answer 1 · answered Dec 28 '17 at 05:41

0

have you tried this way "D:\\TF"?

answered Dec 28 '17 at 05:41

yuzuriha

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does this answer your question? – yuzuriha Dec 28 '17 at 12:21
Yes, i need this. – Mumtaz Khan Dec 29 '17 at 06:04

Dylan Brams · Answer 2 · 2017-12-29T06:26:27.190

0

I believe this answer has exactly what you're looking for. Note that I would have preferred a tag for the language you're using to be sure.

String.replaceAll single backslashes with double backslashes

This code does what I expected it to:

  public class JavaFiddle
  {
    public static void main(String[] args)
    {
        String myString = "C:\\Text\\Somewhere\\Works"; 
        System.out.println(myString);
        String myStringTwo = myString.replace("\\", "\\\\");
        System.out.println(myStringTwo);
    }
  }

Note: What's going on here is the first backslash is an 'Escape Character.' You can't add a backslash directly into a string because it indicates programmatic control. https://en.wikipedia.org/wiki/Escape_character

edited Dec 29 '17 at 06:26

answered Dec 28 '17 at 05:43

Dylan Brams

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I have checked it, and produce result is d: f – Mumtaz Khan Dec 28 '17 at 06:01
What language are you programming in? Either one of the two options mentioned will work in Java. – Dylan Brams Dec 28 '17 at 06:15
i am using java Language – Mumtaz Khan Dec 28 '17 at 06:34
String mystring="D:\TF"; I need to insert only one backslash (\) after colon (:) to become my desire string is mystring="D:\\TF"; Note: How it possible? – Mumtaz Khan Dec 29 '17 at 05:35
Look at the prints. Run the code in a test project. It does what you want. – Dylan Brams Dec 29 '17 at 06:19

How to Insert/Add Backslash Character in a String variable

2 Answers2