string palindrome in java without using reverse method

1// String palindrome in java without using reverse method
2import java.util.Scanner;
3public class StringPalindromeDemo 
4{
5   public static void main(String[] args) 
6   {
7      Scanner sc = new Scanner(System.in);
8      System.out.println("Please enter string to check palindrome: ");
9      String strInput = sc.nextLine();
10      // converting string to char array
11      char[] chString = strInput.toCharArray();       
12      // storing reverse string
13      String strReverse = "";         
14      // reading char by char
15      for(int a = chString.length - 1; a >= 0; a--) 
16      {
17         strReverse = strReverse + chString[a];
18      } 
19      // printing given string and reversed string
20      System.out.println("Given string: " + strInput);
21      System.out.println("Reverse String: " + strReverse); 
22      // check if given string is palindrome
23      if(strInput.equals(strReverse))
24      {
25         System.out.println("string is palindrome.");
26      }
27      else
28      {
29         System.out.println("string is not palindrome.");
30      }
31   }
32}