C Program - Calculator using IF-Else Statement

PROGRAM :

#include<stdio.h>

int main()

{

int a,b,c,opt;

printf("Enter two number to calculate\n");

scanf("%d%d",&a,&b);

printf("\nEnter 1 for Addition\nEnter 2 for Subtraction\nEnter 3 for Multiplication\nEnter 4 for Division\n\n");

scanf("%d",&opt);

if(opt==1)

{

    c = a+b;

    printf("\nSum of %d and %d is %d\n",a,b,c);

}

else if(opt==2)

{

    c = a-b;

    printf("\nDifference between %d and %d is %d\n",a,b,c);

}

else if(opt==3)

{

    c = a*b;

    printf("\nMultiplication of %d by %d is %d\n",a,b,c);

}

else if(opt==4)

{

    c = a/b;

    printf("\nDivision of %d by %d is %d\n",a,b,c);

}

else

{

    printf("\nIn appropriate option\n");

}

}

#include<stdio.h>int main() { int a,b,c,opt; printf("Enter two number to calculate\n"); scanf("%d%d",&a,&b); printf("\nEnter 1 for Addition\nEnter 2 for Subtraction\nEnter 3 for Multiplication\nEnter 4 for Division\n\n"); scanf("%d",&opt); if(opt==1) { c = a+b; printf("\nSum of %d and %d is %d\n",a,b,c); } else if(opt==2) { c = a-b; printf("\nDifference between %d and %d is %d\n",a,b,c); } else if(opt==3) { c = a*b; printf("\nMultiplication of %d by %d is %d\n",a,b,c); } else if(opt==4) { c = a/b; printf("\nDivision of %d by %d is %d\n",a,b,c); } else { printf("\nIn appropriate option\n"); } }

OUTPUT :

Enter two number to calculate

3

2

Enter 1 for Addition

Enter 2 for Subtraction

Enter 3 for Multiplication

Enter 4 for Division

1

Sum of 3 and 2 is 5