Replacing single ‘\’ with ‘\\’ in Java

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String.replaceAll(String,String) is regex.
String.replace(String,String) will do what you want.

The following…

String str = "C:\\Documents and Settings\\HUSAIN\\My Documents\\My Palettes";
System.out.println(str);
str = str.replace("\\", "\\\\");
System.out.println(str);

Produces…

C:\Documents and Settings\HUSAIN\My Documents\My Palettes
C:\\Documents and Settings\\HUSAIN\\My Documents\\My Palettes

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