C Program: Enter a Number and Reverse It by Using goto Statement

goto Statement:

• goto statement is used to transfer control from one location to another location.
• goto is a Keyword.
• Keywords are the reserved words.
• There are 32 keywords in C. 
  

Statement of C program: Enter a number and reversed it by using goto statement. 

#include<stdio.h>

#include<conio.h>

void main()

{                                                    /*  Start of main()  */

int a,c,d;

b=0;                                                // Assign value zero to 'b'

clrscr();

printf("Enter the value of a/n ");

scanf(" %d , &a");

d=a ;                                             // Assign value of 'a' to 'd'

BEGIN:  c=a%10                          // where BEGIN is a Lable                              

                                                    // % is a modulus operator. It is used for finding remainder value.

b=(b*10)+c;

a=a/10;                                               // It is also written as a/=10

if(a>0)

goto BEGIN;                                     // goto is a Keyword

printf(" Input Number=%d/n" , d);

printf(" Reversed Number=%d/n" , b)
}                                                           /*  End of main()  */

Output:

Enter a number

1234

Input Number=1234

Reversed number=4321