Play with C Programming loop with 20 examples code

Play with C Programming loop with 20 examples code

C Program using loop - 1:

Program will print 10 natural numbers like 1 2 3 4 5 6 7 8 9 10.

Program in C language using for loop

#include <stdio.h>
void main()
{     
    int i;
    printf("The first 10 natural number is: ");
    for (i=1; i<=10; i++)
    {      
  printf("%d ",i);
    }
    printf("\n");
}

Output of the C program:

The first 10 natural number is: 1 2 3 4 5 6 7 8 9 10

Program in C language using while loop

#include <stdio.h>
void main()
{
    int i=1;
    printf("The first 10 natural number is: ");

    while(i <= 10)
    {
        printf("%d ",i);
        i++;
    }
    printf("\n");
}

Output of the C program:

The first 10 natural number is: 1 2 3 4 5 6 7 8 9 10

Program in C language using do while loop

#include <stdio.h>
void main()
{
    int a = 1;
    printf("10 Natural Number is: ")
    do
    {
        printf("%d ", a);
        a++;
    }
    while( a <= 10 );

    printf("\n");
}

Output of the C program:

The first 10 natural number is: 1 2 3 4 5 6 7 8 9 10

C Program using loop - 2:

Program will first print 10 natural numbers like 1 2 3 4 5 6 7 8 9 10 and then print their summation = 55 ?.

Program in C language using for loop

#include <stdio.h>
void main()
{
    int i, n;
    int sum = 0;
    printf("Enter How many numbers need to sum : ");
    scanf("%d", &n);

    printf("The first %d natural numbers are : ", n);
    for (i=1; i<=n; i++)
    {
        printf("%d ",i);
        sum += i;
    }
    printf("\nThe summation is : %d\n", sum);
}

Output of the C program:

Enter How many numbers need to sum : 10
The first 10 natural numbers are : 1 2 3 4 5 6 7 8 9 10
The summation is : 55

Program in C language using while loop

#include <stdio.h>
void main()
{
    int i = 1, n;
    int sum = 0;
    printf("Enter How many numbers need to sum : ");
    scanf("%d", &n);

    printf("The first %d natural numbers are : ", n);

    while(i <= n)
    {
        printf("%d ",i);
        sum += i;
        i++;
    }
    printf("\nThe summation is : %d\n", sum);
}

Output of the C program:

Enter How many numbers need to sum : 10
The first 10 natural numbers are : 1 2 3 4 5 6 7 8 9 10
The summation is : 55

Program in C language using do while loop

#include <stdio.h>
void main()
{
    int i = 1, n;
    int sum = 0;
    printf("Enter How many numbers need to sum : ");
    scanf("%d", &n);

    printf("The first %d natural numbers are : ", n);

    do
    {
        printf("%d ",i);
        sum += i;
        i++;
    }
    while( i <= n );

    printf("\nThe summation is : %d\n", sum);
}

Output of the C program:

Enter How many numbers need to sum : 10
The first 10 natural numbers are : 1 2 3 4 5 6 7 8 9 10
The summation is : 55

After the two C codes or 6 codes using different loop you are now pretty much clear what is the same syntax in different loops in for loop, in while loop and in do-while loop.

So we'll now just use any of them and you can obviously convert them to your desired loop.

C Program using loop - 3:

Program will first take 10 numbers from the user/keyboard and then print the summation and average of that 10 numbers

Program in C language using for loop

#include <stdio.h>
void main()
{
    int i = 1, n;
    int sum = 0;
    printf("Enter How many numbers need to sum : ");
    scanf("%d", &n);

    printf("The first %d natural numbers are : ", n);

    do
    {
        printf("%d ",i);
        sum += i;
        i++;
    }
    while( i <= n );

    printf("\nThe summation is : %d\n", sum);
}

Output of the C program:

Input the 10 numbers :
Number 1 :10
Number 2 :20
Number 3 :30
Number 4 :40
Number 5 :50
Number 6 :60
Number 7 :70
Number 8 :80
Number 9 :90
Number 10 :100
The sum of 10 no is : 550
The Average is : 55.000000

C Program using loop - 4:

Program will take an integer and make a multiplication table of that integer.

Program in C language using for loop

#include <stdio.h>
void main()
{
    int i,n;
    printf("Enter number of multiplication table : ");
    scanf("%d", &n);
    printf("\n");

    for(i=1; i<=10; i++)
    {
        printf("%d X %d = %d \n", n, i, n*i);
    }
}

Output of the C program:

Enter number of multiplication table : 15

15 X 1 = 15
15 X 2 = 30
15 X 3 = 45
15 X 4 = 60
15 X 5 = 75
15 X 6 = 90
15 X 7 = 105
15 X 8 = 120
15 X 9 = 135
15 X 10 = 150

C Program using loop - 5:

Program will take an integer and make a triangle of star or asterisk of that integer.

Program in C language using for loop

#include <stdio.h>
void main()
{
    int i, j, rows;
    printf("Enter the number of rows : ");
    scanf("%d", &rows);

    for(i=1; i<=rows; i++)
    {
        for(j=1; j<=i; j++)
        {
            printf("*");
        }
        printf("\n");
    }
}

Output of the C program:

Enter the number of rows : 10
*
**
***
****
*****
******
*******
********
*********
**********

[Continuing...]

Tags: 

C programming loop, c programming loop example, loops in c programming, advance level loop example in c programming, Loops, for loop in c, while loop in c, do-while loop in c, c program to print the summation of 10 numbers, c program to print triangle of star, c program to print the summation and average