Java 数字回文

Question

我想编写一个回文程序，打印所有由两位数 (10-99) 相乘产生的回文数？

到目前为止，这是我的代码:

public class PrintPalindrom {
    public int printPalindrom (int a, int b) {
        int result = a*b;
        int reverse = 0;
        if (a >= 10 && a <= 99 && b >= 10 && b <= 99) {
            while (result != 0) {
                reverse = reverse * 10;
                reverse = reverse + result % 10;
                result = result/10;
                System.out.println("palindrom is " + result);
            }
        } else {
            System.out.println("Wrong numbers");
        }
        return result;
    }
}

如何打印两位数(10-99)相乘产生的回文数？

我的方法现在有效...

Answer 1

请检查此代码:

 public class PrintPalindrom {
    public int printPalindrom (int a, int b) {
        int result = a*b;
        int temp = result; 
        int reverse = 0;
        if (a >= 10 &&  a <= 99 && b >= 10 && b <= 99) {
            while (temp != 0) {
                reverse = reverse * 10;
                reverse = reverse + result % 10;
                temp = temp/10;                
            }
           if(result == reverse) {            
            return result;   
           } 
       }
      return 0;     

    }   

     int from = 10;
     int to = 99;
     for (int i = from; i < to; i++) {
         for (int j = i + 1 ; j <= to; j++) {
              int result = printPalindrom(i, j);
              if(result > 0) {
                 System.out.println(result + ",");
             }              
        }
    }
}