Create PalindromeChecker.java (#513)

Programming/Java/PalindromeOrNot/PalindromeChecker.java

@@ -0,0 +1,41 @@
+import java.util.Scanner;
+
+public class PalindromeChecker {
+
+    public static void main(String args[]){
+
+		    // Get number from user
+        System.out.println("Enter a number : ");
+        int x = new Scanner(System.in).nextInt();
+
+		    // Check if x is palindrome
+        if(isPalindrome(x)){
+            System.out.println(x + " is a palindrome");
+        }else{
+            System.out.println(x + " is not a palindrome");
+        }      
+    }
+
+	  // Given an integer x, return true if x is palindrome integer
+    public static boolean isPalindrome(int x) {
+		  // Negative numbers can not be palindrome
+		  if (x < 0)	return false;
+		  // 1-digit numbers are palindrome
+		  if (x < 10)	return true;
+
+      int palindrome = x; 
+      int reverse = 0;
+
+		  // The reverse of given x
+      while (palindrome != 0) {
+          int remainder = palindrome % 10;
+          reverse *= 10 + remainder;
+          palindrome /= 10;
+      }
+
+		  // if x and reversed x is equal, return true
+      if (x == reverse)
+          return true;
+      return false;
+    }
+}