Edit line 25 _OBJECTS := sample.o to include any headers that need to be compiled. This field can be blank if you don't have any header files, i.e. _OBJECTS :=
Rename your main file to main.cpp
Compiling your code
Run the command make all in the directory where the file Makefile is located
If your program compiled successfully, your output binary should be located in bin/main
Running your code
You can run your code by entering the following into the terminal: bin/main or ./main if you're in the bin directory