Create 11.2 Check Palindrome Number.java

Author: prokrishpatel

11.2 Check Palindrome Number.java

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+/*
+Rajiv asked his friend to write a java code to check the given number is palindrom are not?
+if the number is less than 9 or greater than 9999 than return "invalid input"
+
+Sample 1:
+Enter the number : 121
+number is palindrome
+
+Sample 2:
+Enter the number : 122
+number is not palindrome
+
+Sample 3:
+Enter the number : 7
+invalid input
+
+Input Format
+
+first line of the input reads the number
+
+Constraints
+
+9 < n > 9999
+
+Output Format
+
+prints whether the number is palindrome or not.
+*/
+import java.io.*;
+import java.util.*;
+
+public class Solution {
+
+    public static void main(String[] args) {
+        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
+        Scanner sc = new Scanner(System.in);
+        int num = sc.nextInt();
+        if(num > 9 && num<9999)
+        {
+            int orignal=num,reverse=0,remainder;
+            while(num!=0)
+            {
+                remainder = num%10;
+                reverse = reverse*10+remainder;
+                num /=10;
+            }
+            if(orignal==reverse)
+            {
+                System.out.print("number is palindrome");
+            }
+            else{
+             System.out.print("number is not palindrome");
+            }
+        }
+        else
+        {
+            System.out.print("invalid input");
+        }
+    }
+}