Jumbled Number in Java

In this tutorial, I will be sharing what is Jumbled number, examples of Jumbled number and Java program to check whether a given number is Jumbled number or not.

Read Also: Find first and last digit of a number in Java

Jumbled Number in Java

What is a Jumbled Number

A Jumbled number is a number whose neighbor digits i.e. (left or right) differs by max 1, then the number is a Jumbled number, otherwise not.

Examples :

 123232345 is a Jumbled number
// All neighbor digits differ at most by 1

2346912 is not  a Jumbled number
// 4 and 6 differ by 2,
// 6 and 9 differ by 3,
// 9 and 1 differ by 8

234 is a Jumbled number

Note: All single digit numbers are by default jumbled numbers i.e. 1, 2, 3, 4, 5, 6, 7, 8, 9 are Jumbled numbers.

Java Program for Jumbled Number

Below is the Java program to check whether a given number is a jumbled Number or not using a while loop.

 import java.util.Scanner;

public class JumbledNumber {
    public static void main(String args[]) {
      System.out.println("Enter any integer number");
      Scanner scan = new Scanner(System.in);
      int inputNumber = scan.nextInt();
      boolean result = isJumbledNumber(inputNumber);
      if (result == true)
      {
          System.out.println(inputNumber + " is a Jumbled Number");
      }
      else
      {
          System.out.println(inputNumber + " is NOT a Jumbled Number");
      }
    }
    
    public static boolean isJumbledNumber(int inputNumber)
    {
        int num = inputNumber;
        
        // All single digit numbers are Jumbled number
        if (num / 10 == 0)
            return true;
            
        // Checking every digit of a number through while loop
        while (num != 0)
        {
            // When all digits are checked
            if (num / 10 == 0)
                return true;
            
            // Fetching digit at index i-1
            int digit1= (num / 10) % 10;
            
            // Fetching digit at index i    
            int digit2 = num % 10;
            
            // Calculate difference between digits  
            int diff = Math.abs(digit2 - digit1);
            
            if (diff > 1)
                return false;
                
            num = num / 10;
        }
        // When all digits are checked
        return true;
    }
}

Output:
433448 is NOT a Jumbled Number
2334432 is a Jumbled Number

That's all for today. Please mention in the comments if you have any questions related to how to check whether a given number is a jumbled number or not.