C Program division without causing a division by zero error

While performing a division operation, if the divisor is zero, the division by zero error occurs and program execution halts abruptly. The program segment given below calculates and prints the value of a/b without causing a division by zero error.

if (b == 0)
 printf("Division by zero\n");
else {
 printf ("%f", z);

The if-else statement tests a value of variable band if it is equal to 0, a message Division by zero is printed (and program execution continues); otherwise the value of alb is calculated and printed.

#include<stdio.h>
void main() {
 int a,b;
 float z;
 clrscr();
 printf("Enter the Value of a :\n");
 scanf("%d",&a);
 printf("Enter the Value of b :\n");
 scanf("%d",&b);
 if (b == 0)
   printf("Division by zero\n");
 else {
   z = a / b;
   printf ("%f", z);
 }
 getch();
}