Lecture Notes Of Class 3: Input and Output in C
Lecture Notes Of Class 3: Input and Output in C Objective: In this class, students will learn how to take user input and display output using C programming. The primary focus will be on understanding and using the printf() and scanf() functions. Introduction to Input and Output in C Every programming language requires methods for receiving input from the user and displaying output. In C, input and output operations are handled using standard input-output functions defined in the <stdio.h> library. Input : Taking data from the user (e.g., numbers, characters, strings). Output : Displaying results or messages on the screen. In C, the most commonly used functions for input and output are: 1. printf() – for output 2. scanf() – for input These functions are part of the Standard Input and Output Library (stdio.h), so we must include this library in our programs. 1. Output in C – printf() Function The prin...