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if else in C program

We can use decision making statement if else inside our c code. For this we will start with some simple if else statement and write complex programs in our c language.

If( test expression )
{
Statement block if TRUE
}

Similarly we can add else part to our if condition so if the test expression fails then this part gets executed. We will start with an example. We will ask users to enter one digit , then we will check if it is greater than 10 or not. But to display a message if the condition checking fails we have to use one else block also. Here is the code.

#include <stdio.h>
int main(void){
int num1;
printf("Enter the number ");
scanf("%d",&num1); // Enter numbers
if(num1 <= 10)
{
printf(" Your number is less than or equal to ten");
}
else
{
printf(" Your number is more than ten"); // printng outputs
}
return 0;
}

C programming Basics
printf : Sending output to screen scanf : Reading data from user or keyboard as input to C program comments : Using comments inside C program for loop in C program if else condition in C program switch statment to execute part of the program in C program getchar function to read data from keyboard putchar function to display single data

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Basic of C

printf scanf comments for loop if else switch getchar() putchar()

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Basics of C

if else in C program

If( test expression ) { Statement block if TRUE }

#include <stdio.h> int main(void){ int num1; printf("Enter the number "); scanf("%d",&num1); // Enter numbers if(num1 <= 10) { printf(" Your number is less than or equal to ten"); } else { printf(" Your number is more than ten"); // printng outputs } return 0; }

If( test expression )
{
Statement block if TRUE
}

#include <stdio.h>
int main(void){
int num1;
printf("Enter the number ");
scanf("%d",&num1); // Enter numbers
if(num1 <= 10)
{
printf(" Your number is less than or equal to ten");
}
else
{
printf(" Your number is more than ten"); // printng outputs
}
return 0;
}