回文课堂测试

package test0923;

import java.util.Scanner;

public class Test0923 {
    static int b=0;
    public static String Palindrome(String a,int b)
    {    if(a.length()==1||a.length()==0||b==a.length()/2||b==(a.length()+1)/2)
        return "palindrome";
        else
            {
                 if(a.charAt(b)!=a.charAt(a.length()-b-1))
                 {return "不是回文";}
                 
                 else
                 {
                     b++;
                 return    Palindrome(a,b);
                 }}}
    public static void main(String[] args) {
    Scanner sr=new Scanner(System.in);
        String c;
        c=sr.next();
b=0;
    System.out.println(Palindrome(c,b));    
}
}