Once the environment is loaded, you should see the following screen:
To create new code, type |File|New. You should see the following screen:
Select "Fortran Console Application" and fill out the project name, say "test1" - Please make sure you are storing your files in your own directory (F:\PANAGIOT in my case). In the next screen, select "An empty project":
Clear the warning message about "No files are being added to your project" and select |File|New|Fortran Free Format Source File| and type in a file name for your code:
Now type in the code:
Now select |Buid|Compile|
and you will see that two warnings (for the type mismatch) are generated.
Ignore them for the moment and select
|Build|Build| to produce an executable version, and then |Build|Execute| to run
your program. The answer you get:
is, of course, not what you would expect when 2 is added to 3; the error is the "type mismatch" between the variable declarations in the calling program and the function.