Write a c program to desine simple calculator using switch case?

Answer 1

// Addition Of Two Numbers Which r Taken From User!

/*Program Written by Maulin Thaker Ahmedabad;*/

#include

#include

void main()

{

float n1,n2,ans;

printf("Enter the First number\n");

scanf("%f",&n1);

printf("Enter the Second number\n");

scanf("%f",&n2);

ans=n1 + n2;

printf("Your Answer is -: %.3f",&ans);

}

Answer 2

public class Test {

public int add(int a, int b) {

return a + b;

}

public int sub(int a, int b){

return a - b;

}

public int mult(int a, int b){

return a * b;

}

public div(int a, int b){

return a/b;

}

}

Answer 3

# include < stdio.h >

# include < conio.h >

main ( )

{

int a,b,choice,result; /* Declare variables */

clrscr ( );

printf ( "1. Addition ");

printf ( "\n2. Subtraction ");

printf ( "\n3. Multiplication ");

printf ( "\n4. Division ");

printf( "\n Enter values of a,b=");

scanf ( %d%d", &a, &b); / * Input numbers variables */

printf ( " Enter your choice :-" );

scanf ( "%d" ,&choice); / * Input choice variable */

switch ( choice) /* Select any one choice */

{

Case 1:

result=a+b;

printf( " Addition = %d " ,result);

break;

Case 2:

result=a-b;

printf( "Subtraction = %d " ,result);

break;

Case 3:

result=a*b;

printf( "Multiplication = %d " ,result);

break;

Case 4:

result=a/b;

printf( " Division = %d " ,result);

break;

default:

printf ( " Your choice is wrong ");

}

getch( );

}

Output:

1. Addition

2. Subtraction

3. Multiplication

4. Division

Enter values of a,b= 8 4

Enter your choice :- 2

Subtraction =4

Answer 4

void main() { int op; float a; float b; float result; printf("Enter the Arithmetic Operation: \n 1 - Addition\n 2 - Subtraction\n 3 - Multiplication\n 4 - Division\n 0 - Exit"); scanf("%d", &op); printf("Enter first number: "); scanf("%f", &a); printf("Enter second number: "); scanf("%f", &b); switch (op) { case 1: result = a + b; break; case 2: result = a - b; break; case 3: result = a * b; break; case 4: if (b == 0) { printf("Cannot divide by zero.");

getch(); exit(1); } result = a / b; case 0: exit(1); default: { printf("invalid choice"); } printf("The result is: %f", result); getch(); }

Answer 5

#include<stdio.h>

#include<conio.h>

void main[ ]

{

int a,b,p;

clrscr[ ];

print f [" enter the value of a,b \n" ];

scan f ["%d%d,&a,&b];

s=a+b;

print f["the sum of %d%d and %d is %d a,b si];

}

d=a-b

print f ["the difference of %d %d,;s,d,a,b,d;];

p=a*b

["product of %d%d', a,b,p];

q=a/b

print f ["the coefficient of %d %d is %d''a,b\n"];

get ch[ ];

}

Answer 6

# include<stdio.h>

void main()

{

int a,add,sub,mul,div,x,y;

printf("enter a number\n :");

scanf("%d",&x);

printf("enter another number\n :");

scanf("%d",&y);

printf("1=addition")

printf("2=subtraction");

printf("3=multiplication");

printf("4=division");

printf("enter tour choice\n :");

scanf("%d",a);

switch(a)

{

case 1:

add=x+y;

printf("addition of %d and %d is =%d\n",x,y,add);

break;

case 2:

sub=x-y;

printf("subtraction of %d and %d is =%d\n",x,y,sub);

break;

case 3:

mul=x*y;

printf("multiplication of %d and %d is =%d\n",x,y,mul);

break;

case 4:

div=x/y;

printf("division of %d and %d is =%d\n",x,y,div);

break;

default :

printf("wrong choice");

}

Answer 7

#include<stdio.h>

#include<conio.h>

void main()

{

int n1, n2, ch ;

clrscr() ;

printf("Enter the first number : ") ;

scanf("%d", &n1) ;

printf("\nEnter the second number : ") ;

scanf("%d", &n2) ;

printf("\n[1] -> Addition ") ;

printf("\n[2] -> Subtraction ") ;

printf("\n[3] -> Multiplication ") ;

printf("\n[4] -> Division ") ;

printf("\n\nEnter your choice <1...4> : ") ;

scanf("%d", &ch) ;

switch(ch)

{

case 1 :

printf("\n%d + %d = %d", n1, n2, n1 + n2) ;

break ;

case 2 :

printf("\n%d - %d = %d", n1, n2, n1 - n2) ;

break ;

case 3 :

printf("\n%d * %d = %d", n1, n2, n1 * n2);

break ;

case 4 :

printf("\n%d / %d = %.2f", n1, n2, (float)n1 / n2);

break ;

default :

printf("\nInvalid choice");

break ;

}

getch();

}

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Answer 8

A C program to divide, add, multiply and subtract two numbers; #include int main() { int first, second, add, subtract, multiply; float divide; printf("Enter two integersn"); scanf("%d%d", &first, &second); add = first + second; subtract = first - second; multiply = first * second; divide = first / (float)second; //typecasting printf("Sum = %dn",add); printf("Difference = %dn",subtract); printf("Multiplication = %dn",multiply); printf("Division = %.2fn",divide); return 0; }