for loop in C Language

Categories: C language

The for loop in C language is used to iterate the statements or a part of the program several times. It is frequently used to traverse the data structures like the array and linked list.

Syntax of for loop in C

The syntax of for loop in c language is given below:


for(Expression 1; Expression 2; Expression 3){  

//code to be executed  

}  


C for loop Examples

Let's see the simple program of for loop that prints table of 1.

#include<stdio.h>  

int main(){  

int i=0;        

for(i=1;i<=10;i++){      

printf("%d \n",i);      

}     

return 0;  

}     


C Program: Print table for the given number using C for loop

#include<stdio.h>  

int main(){  

int i=1,number=0;      

printf("Enter a number: ");    

scanf("%d",&number);    

for(i=1;i<=10;i++){      

printf("%d \n",(number*i));    

}    

return 0;  

}    


Output

Enter a number: 2

2

4

6

8

10

12

14

16

18

20


Properties of Expression 1

1. The expression represents the initialization of the loop variable.

2. We can initialize more than one variable in Expression 1.

3. Expression 1 is optional.

4. In C, we can not declare the variables in Expression 1. However, It can be an exception in some compilers.

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