How to determine whether a number is a palindrome in java

public class PalindromeNumber {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入数字:");
        String strNum = scan.next();
        boolean result = isPalindrome(strNum);
        System.out.println(result);
    }
    
    public static Boolean isPalindrome(String str){
        boolean result=false;
        for(int i=0; i<str.length()/2;i++){
            if(str.charAt(i) == str.charAt(str.length()-1-i)){
                result=true;
            }else{
                return result;
            }
        }
        return result;
    }