Program code requests a user to enter a number then outputs the result as the number reversed. Say, the original number is 1234, the output will be 4321.
Using eclipse
import java.util.Scanner;
public class ReverseNumber {
public static void main
(String [] args
){ System.
out.
println("Please enter a number: "); int number
= new Scanner
(System.
in).
nextInt();
int reversedNumber, i;
reversedNumber = 0;
i = 0;
while(number > 0){
/*this will get the remainder of the number which will be
*the rightmost digit
*/
i = number % 10;
//this creates the reversed number
reversedNumber = reversedNumber * 10 + i;
//The result will be stored as an integer value
number = number/10;
}
System.
out.
println("The number reversed is: +reversedNumber); }
}
Using a text editor & command prompt
import java.io.*;
class ReverseNumber{
public static void main(String args[]) {
try {
BufferedReader s =
new BufferedReader(new InputStreamReader(System.in));
int number, reversednumber, i;
System.out.print("Enter the number to be reversed: ");
number = Integer.parseInt(s.readLine());
i = 0;
reversednumber = 0;
while(number > 0){
i = number % 10;
reversednumber = reversednumber * 10 + i;
number = number/10;
}
System.out.print("The number reversed: " + reversednumber);
}
catch(IOException e){}
}
}
Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.
Virus note: All files are scanned once-a-day by SourceCodester.com for viruses, but new viruses come out every day, so no prevention program can catch 100% of them.
FOR YOUR OWN SAFETY, PLEASE:
1. Re-scan downloaded files using your personal virus checker before using it.
2. NEVER, EVER run compiled files (.exe's, .ocx's, .dll's etc.)--only run source code.
