From d8b2c53a384c46b9169b340c3b01144b8536e419 Mon Sep 17 00:00:00 2001
From: Ashwin V Kumar <myselfashwink@gmail.com>
Date: Wed, 6 Oct 2021 17:08:20 +0530
Subject: [PATCH] Added Fascinating Number program

---
 Java/FascinatingNumber.java | 55 +++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Java/FascinatingNumber.java

diff --git a/Java/FascinatingNumber.java b/Java/FascinatingNumber.java
new file mode 100644
index 0000000..36c3986
--- /dev/null
+++ b/Java/FascinatingNumber.java
@@ -0,0 +1,55 @@
+import java.util.Scanner;  
+public class FascinatingNumber  
+{  
+//function to check the Fascinating number  
+public static boolean isFascinatingNumber(int number)   
+{  
+int digit = 0;  
+//new number  
+String str = "" + number + number*2 + number*3;  
+//declaring an array  
+int digitarray[] = new int[10];  
+  
+//comparing array elements with characters of the string  
+for(int i=0; i<str.length(); i++)   
+{  
+//converts ith character into an integer  
+digit = str.charAt(i) - '0';  
+//check arr[digit] element and ignore 0s  
+if(digit==0 || digitarray[digit]==0)  
+digitarray[digit]++;  
+else return false;  
+}  
+//checks the numbers that are missing  
+for(int i=1; i<digitarray.length; i++)   
+{  
+//digit i was not there in String  
+if(digitarray[i]==0)  
+return false;  
+}  
+//all conditions satisfied so, return true  
+return true;  
+}  
+//driver code  
+public static void main(String args[])   
+{  
+// declare variables  
+int lowerRange = 0, upperRange = 0;  
+//create Scanner class object to take input  
+Scanner scan = new Scanner(System.in);  
+System.out.print("Enter lower range:");  
+lowerRange = scan.nextInt();  
+System.out.print("Enter upper range:");  
+upperRange = scan.nextInt();  
+System.out.println("The Fascinating number from "+ lowerRange + " to "+ upperRange+" are: ");  
+//loop executes until the given condition returns false  
+for(int i=lowerRange; i<=upperRange; i++)   
+{  
+//calling user-defined number  
+if(isFascinatingNumber(i))  
+//prints all the fascinating numbers between a given range  
+System.out.print(i +" ");  
+}  
+}  
+} 
+//Contributed by Ashwin V Kumar, KMM College of Arts and Science.//