compile a c++ program(runtime) using a java program

Question

I want to create a java program which will compile and execute program written in c++. Ijust wanted to know the links or get any idea how will I do this, I want to learn by-self, but not sure from where i should start. I got a link for executing a ".exe" file, which is the part of my program, but how can I compile a C++ program through Java.

I tried to search the related stuff, but was unable to find...suggestions are appreciated...

Presumably you don't want to build the compiler itself, but call an existing one? — Bathsheba, Nov 13 '15 at 12:08
So ... you wand to write a C++ compiler in Java ? Good luck with that! Start with the documentation of clang maybe. — YSC, Nov 13 '15 at 12:09
... or you could *invoke* a C++ compiler from your java program. Ok I get it. — YSC, Nov 13 '15 at 12:10
#YSC want to invoke a C++ compiler. #Bathsheba, call an existing one... — Shiraz Malkani, Nov 13 '15 at 12:14

score 0 · Answer 1 · edited May 23 '17 at 12:23

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Here's how you should use Runtime.exec() to execute a C++ compiler. You might also try its more modern cousin, ProcessBuilder:

Java Runtime.getRuntime().exec() alternatives

edited May 23 '17 at 12:23

Community

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answered Nov 13 '15 at 12:13

YSC

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score 0 · Accepted Answer · answered Nov 13 '15 at 12:16

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I think you want to run a .exe file through Java.

You should try Runtime.getRuntime().exec(String command, String[] envparam, File dir) with:

command is the location of the .exe
envparam can be null
dir is the directory of your .exe

Example:

Runtime.getRuntime().exec("c:\\program files\\test\\test.exe", null, new File("c:\\program files\\test\\"));

answered Nov 13 '15 at 12:16

codeaholicguy

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before running a .exe file, i wont to compile a code, with java program, written in C++ to generate a .exe file. – Shiraz Malkani Nov 13 '15 at 12:30
so you should call command to build before run .exe. Example g++ main.cpp -o main – codeaholicguy Nov 13 '15 at 12:33

compile a c++ program(runtime) using a java program

2 Answers2