I am trying to build a Java application that compiles and runs C++ files. It also stores the output of the .exe file in a text file. Can anyone provide a complete walk through on how to do it?
I have already tried the solution provided here and the program showed compilation successful message. But I couldn't find the .o file or .exe file in the directory.
General question -> General Answer
Easiest way to do it: Generate a makefile, run that.
For make see reference
This might not be a Java or a C++ problem. Are you certain your compiler is properly set up? What command are you using to invoke it? Assuming you are using the code provided here, are the paths indicated correct?
Process p = Runtime.getRuntime().exec("cmd /C gcc " + filename + " -o " + exeName, null, dir);
Try opening a command prompt and invoking the compiler by hand:
gcc Hello.cpp
Assuming the paths are correct for both the executable and the file, you either get an error, or a file named something like $a.exe in your working directory.
Lastly: I haven't used Mingw32 in a while, but you might need to call g++ instead of gcc for C++ code.
