FAQ: Compile & Execute - Review

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This community-built FAQ covers the “Review” exercise from the lesson “Compile & Execute”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise Review

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2

How do you save the hello.cpp on my computer to execute the code on my computer?

3 Likes
4

why we should add comment it it’s not going to get compiled ?

5

If I change the text in the std::cout, compile the code like g++ hello.cpp -o name, and then execute it like ./name, it still says “Hello World!”

Why is this?

6

I might be mistaking your issue but chances are the actual file hasn’t been saved and updated. Try using the run (or save) button below the text editor section to make sure it has saved an updated version of your file before compilation.

1 Like
7

Ooh yeah I think that’s it thanks

2 Likes
8

I’ve installed MSYS2 according to these directions here as per the Codecademy lesson: https://www.msys2.org/ and setup the environment variables. Now when I compile in CMD there’s no issue, but when I try to execute I get the error: “’.’ is not recognized as an internal or external command,
operable program or batch file.” Why is g++ recognized and ./ is not? I checked the folder C:\msys64\mingw64\bin where I saved the file and I have g++ in the bin folder but not ./ Could that be part of the issue?

1 Like
9

As it stated, the terminal doesn’t recognize “,” as a command. If you want to run the executable, you’ll have to type out the whole directory (e.g. C:\Projects\hello).

10

just to clarify what we are doing

@dv2s6 I had the same question you’ll have to install msys2 and add a variable to path under user variables to point mingw bin folder here you can watch it detailed Get Started with C++ and Mingw-w64 in Visual Studio Code

@method3337998875 in windows you dont have to use ./ to run the program simply type the name
eg. g++ hello.cpp -o hello you type hello in the command line to run the program

12

Is MSYS2 for windows? I don’t understand if it is for linux users trying to build windows apps
and what is the codecademy lesson? I want to compile c++ programs

edit: already compile a c++ program

13

When I resume the course always send me to this lesson fix it I already have done the logical operators I hope someone of the staff will read this if not where I can report this?