running file in a project in code blocks

Question

Recently I created a project in code blocks.
But, when I tried to compile and run a new file It compiled and runs the "main.cpp" or the first file that automatically creates when you create a project.
I'm sure that I pressed compile and run button.
Someone help me, please.

Answer 1

What do you mean? Every program starts with int main() function in C++, so it will start with this function almost always

Answer 2

Michal Doruch not int main ().
main.cpp file(the file when you create a project, creates automatically)