Java Program to Reverse a Number

In this Java Video Tutorial you will learn How to Write a Program to Reverse a Number entered by the user.
Here we ask the user to enter a number and then we separate each digits from that number, and generate the number which will be the reverse of the given number.
This program can help a beginner in Computer Programming to understand how to construct the logic, How to use loops effectively.
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[@AdrianTregoning]

Best explanation I've seen now. Thank you.

[@ExampleProgram]

You're very welcome!

[@dudem5447]

THANK YOU!!! this is the only video i found that explains this problem!! thanks sir (edit: i found many videos that just show you the code but don't say anything about how it works).

[@ExampleProgram]

You're welcome!

[@Anil_Y_channel]

Very good explanation i understand easily through ur bref explanation.thank you Very much

[@ExampleProgram]

You are most welcome

[@rstikh]

thanks! you're amazing at explaining :)

[@ExampleProgram]

Glad you think so!

[@JJJJ-gl2uf]

Good work.

[@ExampleProgram]

Thanks!

[@anushkatupe9502]

❤❤❤❤goat

[@ExampleProgram]

thanks :)

[@betterthanyesterdayinc.3361]

Thank you

[@ExampleProgram]

You're welcome

[@sukritighoshdancer]

Thank u sir

[@ExampleProgram]

Welcome

[@shashanks7608]

Good video

[@ExampleProgram]

Thank you :)

[@googleistrapman2681]

Nice bro

[@ExampleProgram]

Thanks

[@paramgandhi5768]

how can we do this with for loop? as we have to mention the initial value and then increment or decrement too

[@nsnikhil200]

public class exercise {
public static void main(String[] args)
{
int remainder, revNumber = 0;
Scanner sc = new Scanner(System.in);
System.out.println("Enter a three digit number(100 to 999)");
int number = sc.nextInt();
if (number > 99 && number < 1000) {
while (number > 0) {
remainder = number % 10;
number = number / 10;
revNumber = (revNumber * 10) + remainder;
}
System.out.println(revNumber);
}
else {
System.out.println("It is not a three digit number");
System.exit(0);
}
}

[@lennoxabreo]

only issue with this is, it does not ask you to enter a number again. it stops running after sending the message it is not a three digit number.
iterate again in while loop to ask for the user input again

[@priyashyamnair3551]

why we are using 10?

[@ExampleProgram]

decimal number system.
it has 10 digits ( 0 - 9 )

[@raazpj2317]

Why we dividing with 10

[@moxddne4226]

to remove remainder

[@renisha4949]

Why we multiply by 10

[@ExampleProgram]

because here we are using decimal number system :)

[@renisha4949]

@@ExampleProgram thank you 👍

[@SushilPal-lj9nr]

1 error in programm example like 1000