What are source files?

Source files are files that contain the human-readable code written in a programming language. These files are typically used to define the logic and functionality of a program. They need to be compiled or interpreted to create executable programs that can run on a computer.

Characteristics of Source Files:

• File Extensions: Source files often have specific extensions that indicate the programming language used. For example:
  • .c for C language
  • .cpp for C++ language
  • .java for Java language
  • .py for Python language
• Human-Readable: The code in source files is written in a way that is understandable by programmers, using syntax and semantics of the respective programming language.
• Compilation/Interpretation: Source files must be processed by a compiler (for compiled languages) or an interpreter (for interpreted languages) to convert the code into machine code or bytecode that the computer can execute.

Example

A simple C source file named hello.c might look like this:

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

In this example, hello.c is a source file that contains a C program.