new

Author: Sbiswas001

out/production/ComputerProject/com/sbiswas001/twelveproject/ArmstrongNumber.class

@@ -1,4 +1,99 @@
 package com.sbiswas001.twelveproject;
 
+import java.util.Scanner;
+
+/**
+ * This class checks if a number is prime-palindrome
+ * or not. A number is prime-palindrome if it is a
+ * prime number as well as a palindrome number.
+ * @author Sayan Biswas
+ * @version 25.04.2022
+ */
 public class PrimePalindrome {
+
+    /**
+     * Stores number
+     */
+    private int x;
+
+    /**
+     * Initializes instance variables
+     */
+    private PrimePalindrome() {
+        x=0;
+    }
+
+    /**
+     * Inputs a number from user
+     */
+    private void input() {
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter a number: ");
+        x=Integer.parseInt(sc.next());
+    }
+
+    /**
+     * Checks if a number is palindrome or not.
+     * @param n Number to be checked
+     * @return true or false
+     */
+    private boolean palindromeCheck(int n)
+    {
+        return n == reverse(n);
+    }
+
+    /**
+     * Reverses a number
+     * @param n Number to be reversed
+     * @return Reversed number
+     */
+    private int reverse(int n)
+    {
+        int sum=0, r;
+        while(n>0)
+        {
+            r=n%10;
+            sum=(sum*10)+r;
+            n=n/10;
+        }
+        return sum;
+    }
+
+    /**
+     * Checks if number is prime or not
+     * @param a Number to be checked
+     * @return true or false
+     */
+    private boolean primeCheck(int a) {
+        int flag=0;
+        if(a<2) return false;
+        for(int i=2;i<a;i++) {
+            if(a%i==0) {
+                flag++;
+                break;
+            }
+        }
+        return flag != 1;
+    }
+
+    /**
+     * Displays if number is prime-palindrome or not.
+     */
+    private void display() {
+        System.out.println(palindromeCheck(x) && primeCheck(x) ?
+                "Number is prime-palindrome." :
+                "Number is not prime-palindrome.");
+    }
+
+    /**
+     * Calls other methods
+     * @param args Arguments passed to main method
+     */
+    public static void main(String[] args) {
+        PrimePalindrome ob  = new PrimePalindrome();
+        ob.input();
+        ob.display();
+    }
+
+
 }