PalindromeBase

PalindromeBase.java

import java.io.*;
public class PalindromeBase {
    static String number = "";// this string is to store the reminder untill num/base == 0
  // I used recursive function 
    public static int calculate(int num , int base){
        if(num/base==0){
            number += Integer.toString(num%base);
            return 0;
        }else{
            number += Integer.toString(num%base);
            int newNum = num / base;
            return calculate(newNum,base);
        }
    }
  // this function checks if the number which is in string form a palindrome or not 
    public static boolean isPalindrome(String numberAsString){
        char[] array = numberAsString.toCharArray();
        int e = array.length-1;
        boolean checker = false;
        for(int s = 0 ; s < array.length ; s++ , e--){
            if(array[s]== array[e]){
                checker = true;
            }else{
                checker = false;
                break;
            }
        }
        return checker;
    }
  // get function will take each line in the file and return the number and base as int type
    public static int[] get(char[] line){
        String ab = new String(line);
        String[] splitter = ab.split("\\s");
        int num1  , num2 ;
        num1 = Integer.parseInt(splitter[0]);
        num2 = Integer.parseInt(splitter[1]);
        int[] returing = {num1,num2};
        return returing;
    }

    public static void main(String[] args) throws Exception {
        String str;
        File file = new File("//Users//yarasaleh//Desktop//PalindromeBase//Test.txt");
        BufferedReader br = new BufferedReader(new FileReader(file));
      // while will loop through each line in the file
        while((str =br.readLine() ) != null){
            number = "";
            char[] line = str.toCharArray();
          // req array will store the number and base since functions in java cannot return two integers 
            int[] req = get(line);
            int num , base;
            num = req[0];
            base = req[1];
            if(num == 0 && base  == 0){
                break;
            }else{
                int g = calculate(num,base);
                if(isPalindrome(number))
                    System.out.println("Yes");
                else
                    System.out.println("No");
            }
        }



    }

}

Test.txt

25 10
23 3
33 10
33 8
23 3
20 16
5 2
0 0