Lecture 1 Introduction, Basics of C++ What is a programming language? • "programming language" is a means of communication between a human being (programmer) and a computer. • A programmer uses this means of communication in order to give the computer instructions. • These instructions are called "programs". • There are many languages that a programmer can use to communicate with a computer. • C++ is one of these languages, and a popular one at that. • Each programming language has its own set of words and rules, called the syntax of that language. • If you're going to write a program, you have to follow the syntax of the language you're using, otherwise you won't be understood. The Compilation Process C++ source code C++ compiler Object code • Source Code: – The language program was written in • Object Code – The machine language equivalent of the program after compilation • Compiler – Is a computer program that transforms source code written in a programming language into machine language (executable file) that is the target language which usually has a binary form known as object code. – The compiler looks to see if your program is grammatically correct, without trying to actually execute the program. Structure of a program // my first program in C++ #include using namespace std; int main () } cout << "Hello World!"; return 0; { Hello World!

Introduction, Basics of C++ Lecture 1

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