A Series on "JAVA CODING CHALLENGE" #2 Palindrome Check for String and Number both

Problem 2 :

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Write a program to check whether a String or Number is Palindrome or Not .

Example : String : "madam" is Palindrome and "mad" is not

Number : 121212 is Palindrome but 123 is not .

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Approach :

Get the number to check for palindrome
Hold the number in temporary variable
Reverse the number
Compare the temporary number with reversed number
If both numbers are same, print "palindrome number"
Else print "not palindrome number"

Code :

import java.util.*;
public class Palindrome{
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);

         String str =sc.nextLine();

         String str2="";

         for(int i=str.length()-1;i>=0;i--){
            str2+=str.charAt(i);
         }

         if(str.equals(str2)){
            System.out.println("String is Palindrome");
         }
         else{
            System.out.println("NOT");
         }



        int num=sc.nextInt();
        int n =num;
        int sum=0;

        while(n!=0){
            int d=n%10;
            sum=(sum*10)+d;
            n/=10;
        }
   }
}

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