Using Logical Operators in C: A Beginner's Guide

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C provides three logical operators when we test more than one condition to make decisions. These are: && (meaning logical AND), || (meaning logical OR) and ! (meaning logical NOT).

Operator	Example	Meaning
&&	(Logical AND)	expression1 && expression2 true only if both expression1 and expression2 are true
||	(Logical OR)	expression1 || expression2 true if either expression1 or expression2 is true
!	(Logical NOT)	!expression true if expression is false and vice versa

The code is a C program that demonstrates the use of logical operators in C. Here is an explanation of each line of the code:

• int a=32; declares a variable a of type int and assigns it the value 32.
• printf("\nLogical And : %d",(a>=35 && a<=100)); uses the logical operator '&&' to check if the value of a is greater than or equal to 35 and less than or equal to 100, if both conditions are true then it returns 1 otherwise 0. This is printed in the console.
• printf("\nLogical Or : %d",(a>=35 || a<=100)); uses the logical operator '||' to check if the value of a is greater than or equal to 35 or less than or equal to 100, if either of the conditions is true then it returns 1 otherwise 0. This is printed in the console.
• printf("\nLogical Not : %d",!(a>=35)); uses the logical operator '!' to check if the value of a is not greater than or equal to 35, if true then it returns 1 otherwise 0. This is printed in the console.
• return 0; The return 0; statement is used to indicate that the main function has completed successfully. The value 0 is returned as the exit status of the program, which indicates a successful execution.

When you run this code, it will perform logical operations on variables and print the results in the console.

Source Code

//Logical Operators
 
#include<stdio.h>
int main()
{
    int a=32; //>=35 and(&&) <=100
    printf("\nLogical And : %d",(a>=35 && a<=100));
    printf("\nLogical Or  : %d",(a>=35 || a<=100));
    printf("\nLogical Not : %d",!(a>=35));
 
 
    return 0;
}
 

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Output

Logical And : 0
Logical Or  : 1
Logical Not : 1

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List of Programs

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• C Introduction
• Hello World
• Basic Addition
• Data Types in C
• Variables and Literals in C
• Arithmetic Operator in C
• Example for Arithmetic Operator in C
• Assignment Operators in C Program
• Relational Operators in C Program
• Logical Operators in C Program
• Increment and Decrement Operators in C Program
• Bitwise Operators in C Program
• if Statement in C Program
• if else Statement in C Program
• else if Statement in C Program
• Nested if Statement in C Program
• Switch Statement in C Program
• Conditional Operator Statement in C Program
• School Management in C Program
• Library Management in C Program
• Find the given number is odd or even in C Program
• Check the given number is vowels or not in C Program
• Check the given number is Armstrong or not in C Program
• Hotel Management in C Program
• Goto Statement in C Program
• Hotel Management using goto in C Program
• While Loop in C Program
• Do while Loop in C Program
• For Loop in C Program
• Nested For Loop in C Program
• Break and Continue Statement in C Program
• ASCII Values in C Program
• Single Dimensional Array in C Program
• 2D Array in C Program
• String Function in C Program
• Math Function in C Program
• Function in C Program
• No Return Without Argument Function in C Program
• No Return With Argument Function in C Program
• Return Without Argument Function in C Program
• Return With Argument Function in C Program
• Recursion Function in C Program
• Call by Reference Function in C Program
• Local Variable in C Program
• Global Variable in C Program
• Static Variable in C Program
• Enumeration or enum in C Program
• Single pointer in C Program
• Double & Triple pointer in C Program
• Pointer Arithmetic in C Program
• Pointer Handle Array Values in C Program
• Void * Pointer in C Program
• Malloc Function in C Program
• Calloc Function in C Program
• Realloc Function in C Program
• Free Function in C Program
• Dangling Pointer in C Program
• Using Const in Pointer in C Program
• Structure in C Program
• Local and Global Structure in C Program
• Typedef in C Program
• Initializing & Accessing the Structure Members in C Program
• Access members of structure using pointer in C Program
• Structure as function arguments in C Program
• Array of Objects Structure in C Program
• Union in C Program
• Shop Management using Structure and Union in C Program
• Input and output functions in C Program
• Preprocessor Directives in C Program
• Read File in C Program
• Write File in C Program
• Multiplication tables in C Program
• Total no of even and odd numbers in an array in C Program
• Count Alphabets Digits and Special Characters in a String in C Program
• Convert string to uppercase in C Program
• Convert string to lowercase in C Program
• Display Fibonacci Sequence in C Program
• Greatest of n numbers in an array in C Program

Sample Programs

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Conditional Operators in C

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• Check Number Equal or Not
• Check Char. Vowel or Consonent
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Goto Statement in C

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• Printing Tables
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• Printing Reverse Table
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While Loop Example Programs

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• Armstrong Number using While Loop
• Print Odd and Even numbers
• Print Positive and Negative numbers
• Print Prime or Composite Number Upto Limit
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• Reverse table using While Loop
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Looping Statements in C

For Loop Example Programs

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• Armstrong Number using For Loop
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• Flag Pattern using For Loop
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• Right Angle Triangle facing left
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Array Examples in C

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• Arrange array elements in Ascending
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• Insert an element using Array
• Update an element using Array
• Delete an element using Array
• Interchange an element using Array
• Reverse an element using Array
• Odd or Even Number using Array
• Positive and Negative Numbers using Array
• Armstrong Number 100 to 999
• Greatest Number using Array
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• Print values divisible by 7 using Array
• Convert binary to decimal using Array
• Convert decimal to binary using Array
• Convert decimal to octal using Array

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Two Dimensional Array in C

• Print Two Dimensional Array
• Array Addition in Two-Dimenional Array
• Array Subtraction in Two-Dimensional Array
• Array Multiplication using Array
• Lower Triangular Matrix using Array
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• Print Unit Matrix using Array
• Check and Print Unit Matrix

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String Example Programs in C

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• String Example
• String Comparison in C
• String Concatenation in C
• String Copy Example in C
• Convert Uppercase to Lowercase
• Remove Duplicate String
• Reverse text using String
• Toggle Case using String
• Conver text into Capital or Small
• Convert Lowercase to Uppercase
• Convert text into Ascending Order using
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• Check given strings Equal or Not
• Copy String using Predefined Function
• String Length using Predefined Function
• String Length without Predefined Function
• Uppercase to Lowercase using Predefined Function
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Functions Example Programs in C

• Addition using return type and arguments
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• Function with no return and with arguments in c
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