mirror of https://github.com/evanferrao/dsa
21 lines
549 B
Java
21 lines
549 B
Java
// write a code to reverse a number in java
|
|
// input: 1234
|
|
// output: 4321
|
|
|
|
import java.util.Scanner;
|
|
|
|
class ReverseNumber {
|
|
public static void main(String[] args) {
|
|
Scanner scanner = new Scanner(System.in);
|
|
System.out.println("Enter a number: ");
|
|
int num = scanner.nextInt();
|
|
scanner.close();
|
|
int rev = 0;
|
|
while (num != 0) {
|
|
int digit = num % 10;
|
|
rev = rev * 10 + digit;
|
|
num = num / 10;
|
|
}
|
|
System.out.println("Reversed number: " + rev);
|
|
}
|
|
} |