Program to reverse a number

Java program to reverse a number

import java.util.*;  
class Main {
    public static void main(String args[])
    {
    int reverse=0;
    Scanner s = new Scanner(System.in);
    System.out.println("Please Enter number: ");
    int i = s.nextInt(); 
    
    while(i!=0){        
        reverse = reverse*10 + i%10;        
        i=i/10;    
    }    
    System.out.println("Number after reverse : "+reverse);    
    }
}

Output:

Please Enter number:
1224
Number after reverse : 4221

Python program to reverse a number

reverse=0;
i=int(input("Please Enter number: "));

while(i!=0):        
        reverse = reverse*10 + i%10;        
        i=i//10;    
        
print("Number after reverse : ",reverse);

Output:

Please Enter number:
1224
Number after reverse : 4221

C# program to reverse a number



class Program
{
static void main(String args[])
{
int reverse=0;
    
Console.WriteLine("Please Enter number: ");
int i = Convert.ToInt32(Console.ReadLine());
    
while(i!=0){        
    reverse = reverse*10 + i%10;        
    i=i/10;    
}    
    Console.WriteLine("Number after reverse : "+reverse);    
}
}

Output:

Please Enter number:
1224
Number after reverse : 4221

C program to reverse a number



void main()
{
    int reverse=0;
    
    printf("Please Enter number: ");
    scanf("%d",&i)
    
    while(i!=0){        
        reverse = reverse*10 + i%10;        
        i=i/10;    
    }    
    printf("Number after reverse : %d",reverse);    
    getch();
}