Definition:
Programmers write software programs using a programming language (e.g., Java). The programming language provides a series of instructions they can use to create the program they want. All the instructions a programmer uses to build the program are known as source code.
For a computer to be able to execute the program, these instructions need to be translated using a compiler.
Examples:
Here is the source code for a simple Java program:
class HelloWorld {
public static void main(String[] args) {
//Write Hello World to the terminal window
System.out.println("Hello World!");
}
} 
