Java Program to check for Bouncy Number, Increasing Number, Decreasing Number

Question:

Write a Program in Java to input a number and check whether it is a Bouncy Number or not.

Increasing Number : Working from left-to-right if no digit is exceeded by the digit to its left it is called an increasing number; for example, 22344.
Decreasing Number : Similarly if no digit is exceeded by the digit to its right it is called a decreasing number; for example, 774410.
Bouncy Number : We shall call a positive integer that is neither increasing nor decreasing a “bouncy” number; for example, 155349. Clearly there cannot be any bouncy numbers below 100.

Solution:

/**
* The class BouncyNumber inputs a number and checks whether it is a Bouncy Number or not
* @author : www.guideforschool.com
* @Program Type : BlueJ Program - Java
*/

import java.util.*;
class BouncyNumber
{
    boolean isIncreasing(int n) //Function to check whether a number is Increasing
    {
        String s = Integer.toString(n);
        char ch;
        int f = 0;
        for(int i=0; is.charAt(i+1))// If any digit is more than next digit then we have to stop checking
            {
                f = 1;
                break;
            }
        }
        if(f==1)
            return false;
        else
            return true;
    }
    
    boolean isDecreasing(int n) //Function to check whether a number is Decreasing
    {
        String s = Integer.toString(n);
        char ch;
        int f = 0;
        for(int i=0; i

Output:
Enter a number : 22344

The number 22344 is Increasing and Not Bouncy

Enter a number : 774410

The number 774410 is Decreasing and Not Bouncy

Enter a number : 155349

The number 155349 is bouncy