This question already has answers here:
How to construct a relative path in Java from two absolute paths (or URLs)?
(23 answers)
Closed 6 years ago.
I have two File objects:
C:/basepath/
C:/basepath/directory/file.txt
Now I would like to subtract file 1 from file 2 so that I get directory/file.txt.
I don't want to use String.substring() since file paths may differ from input.
Use the features of java.nio.file.Path. You are looking to 'relativize'.
Related
This question already has answers here:
Searching for a sequence of Bytes in a Binary File with Java
(5 answers)
Closed 5 years ago.
I come up an idea to read a byte[] array with the same size of the input, and check one by one. But it seems not very efficient. Is there a way to solve it by using rolling hash?
If you are using java 8 or above please check the
java.util.Optional<T>
The documentation is here
Optional
If I got what you mean correctly
This question already has answers here:
Servlet and path parameters like /xyz/{value}/test, how to map in web.xml?
(7 answers)
Closed 6 years ago.
I'm want to map these two different servlets (using addServletWithMapping):
"/soccerapp/teams/*"
"/soccerapp/teams/*/players
but the second is obviously never reached, is any other special char that I can use in the string path to solve the problem?
The wildcard in the middle of the path is not evaluated. You can see this answer https://stackoverflow.com/a/15386616/1630604 for a complete description how the path are evaluated.
Anyway, you cannot map two Servlet to one URL.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Concatenating WAV files in Java
What's the simplest way to concatenate more than two WAV files in Java?
If you're asking about concatenating more than two, I'll assume that you already have a way to concatenate exactly two.
In which case you can concatenate multiple files together by simply concatenating each file in turn to the rolling total. Something like this (for four files):
concatenate(concatenate(concatenate(wav1, wav2), wav3), wav4);
This question already has answers here:
How to construct a relative path in Java from two absolute paths (or URLs)?
(23 answers)
Closed 6 years ago.
Is there an open source library that, given ...
/a/b/c
/a/b/c/d/e
would return ../..
or for that matter given
/a/b/c/d
/a/b/c/e
would return ../d
?
If you don't mind passing by converting your Strings into URI then this latter one has the method relativize which should do exactly what you want, take a look here.
This question already has answers here:
Closed 12 years ago.
Possible Duplicate:
Java : How to determine the correct charset encoding of a stream
How to identify the encoding of a input file by using JAVA?
Detecting correct encoding of a given text is not exact science. All above software are approximations.