An **increasing number** is a non-negative integer in which the digits from left to right are arranged in such a way that no digit on the left is greater than the digit to its right. Example: 588999.

On the other hand, a **decreasing number** is a non-negative integer in which the digits from left to right are arranged in such a way that no digit on the left is smaller than the digit to its right. Example: 95442.

And finally, a **bouncy number** is one in which is a non-negative integer, and it is neither an increasing number, nor a decreasing number. Example: 264458.

Write a program in Java to input an integer, and check whether it is an increasing number, or a decreasing number or a bouncy number, and display a suitable message accordingly.

```
import java.io.*;
class Bouncy{
public static void main(String args[])throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("N = ");
int n = Integer.parseInt(br.readLine());
if(n < 0){
System.out.println("Not an increasing number.");
System.out.println("Not a decreasing number.");
System.out.println("Not a bouncy number.");
return;
}
if(isIncreasing(n))
System.out.println(n + " is an increasing number.");
if(isDecreasing(n))
System.out.println(n + " is a decreasing number.");
if(!isIncreasing(n) && !isDecreasing(n))
System.out.println(n + " is a bouncy number.");
}
public static boolean isIncreasing(int num){
int last = num % 10;
boolean status = true;
while(num != 0){
int digit = num % 10;
if(digit > last){
status = false;
break;
}
last = digit;
num /= 10;
}
return status;
}
public static boolean isDecreasing(int num){
int last = num % 10;
boolean status = true;
while(num != 0){
int digit = num % 10;
if(digit < last){
status = false;
break;
}
last = digit;
num /= 10;
}
return status;
}
}
```

## 2 replies on “Bouncy Number in Java”

Hello sir ! ❤️ Thanku soo much….ur website is awesome…the only which provides solutions of our choice , using the buffered class…CAN UH PLEASE PROVIDE SOLVED SPECIMEN OF 2021 ALSO PLEASE 🥺

Thanks Mohit. The specimen paper 2021 is not yet released in the council website.