Merge pull request TheAlgorithms#142 from manmeet-22/patch-5

Palindromic Primes

Author: dynamitechetan

Misc/PalindromicPrime.java

@@ -0,0 +1,41 @@
+import java.util.Scanner;
+public class PalindromePrime {
+
+    public static void main(String[] args) { // Main funtion
+        Scanner in = new Scanner(System.in);
+        System.out.println("Enter the quantity of First Palindromic Primes you want");
+        int n = in.nextInt(); // Input of how mant first pallindromic prime we want
+        funtioning(n); // calling funtion - functioning  
+    }
+
+    public static boolean prime(int num) { // checking if number is prime or not
+        for (int divisor = 2; divisor <= num / 2; divisor++) {
+            if (num % divisor == 0) {
+                return false; //  false if not prime
+            }
+        }
+        return true; // True if prime
+    }
+
+    public static int reverse(int n){ //  Returns  the reverse of the number
+        int reverse = 0;
+        while(n!=0){
+            reverse = reverse * 10;
+            reverse = reverse + n%10;
+            n = n/10;
+        }
+        return reverse;
+    }
+
+    public static void funtioning(int y){
+            int count =0;
+            int num = 2;
+            while(count < y){
+                if(prime(num) && num == reverse(num)){ // number is prime and it's reverse is same
+                    count++; // counts check when to terminate while loop
+                    System.out.print(num + "\n"); // Print the Palindromic Prime
+                }
+                num++; // inrease iterator value by one
+            }
+    }
+};