How can we use .cpp files in java code

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Dear Sir,

I have collection c++ files. I want to call/use them in java code.
How can we do it?
Please give a suggestion to do it.

regards
sankar

Posted 21-Mar-11 19:55pm

sankardunga

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Richard MacCutchan · Answer 1 · 2011-03-22T01:04:00

Solution 5

I already answered this question here[^]. For future reference, please post your question in one forum only.

Posted 22-Mar-11 1:04am

Richard MacCutchan

Niklas L · Answer 2 · 2011-03-21T23:10:00

Solution 3

You should read about the Java Native Interface, JNI[^].

Posted 21-Mar-11 23:10pm

Niklas L

Comments

sankardunga 22-Mar-11 5:23am

can we call any c++ files by using JNI.

Niklas L 22-Mar-11 5:38am

I have done it for C files, but I suggest you look at the wiki here http://en.wikipedia.org/wiki/Java_Native_Interface
You will need to write some wrapper functions.

Richard MacCutchan 22-Mar-11 7:05am

Yes you can use it to call C or C++ language code.

sankardunga 22-Mar-11 6:46am

okay thank you,
i will try in this way.

Alain Rist · Answer 3 · 2011-03-21T23:35:00

Hi,
C++ and Java have so different underlying concepts that it's not possible directly.
You may try to translate the C++ code to Java, which is sometimes near to impossible. You will find some free or paid translator programs if googling for them.
My personal experience is that they are almost useless.
For handwritten translation have a look at Quick conversion and reference to the most
common commands used in C/C++ and Java
[^].

Eventually the quickest and best way is to write in Java from scratch, using the C++ code base as reference.
cheers,
AR

Kurt Degiorgio · Answer 4 · 2011-03-21T22:20:00

Solution 2

You can create a wrapper class that interfaces with the c++ library (yes you have to build a library)

Posted 21-Mar-11 22:20pm

Kurt Degiorgio

Comments

sankardunga 22-Mar-11 5:21am

can you elaborate your answer.
I didn't get.

Kurt Degiorgio 22-Mar-11 7:20am

take a look at this article:
http://home.pacifier.com/~mmead/cs510jip/jni/