使用JoptionPane接受来自用户的整数，并在JAVA中以单词显示整数。我的代码可以正常工作，但它一直单独显示数字

Question

编辑问题：该问题要求用户使用JAVA中的JOPtionpane设置1到999之间的整数；并以文字显示这些整数。例如，如果用户输入13，程序应显示“十三”，并循环要求用户输入另一个整数。如果用户输入0，程序应退出。如果用户输入的整数大于999，程序应显示错误消息，并要求用户输入小于999的整数。以下是我尝试过的代码。但是，它不能正常工作。感谢您的帮助。

import javax.swing.JOptionPane;

public class practice_9_1 {



        public static void main(String[] args) {
            int number;
            String input_string= JOptionPane.showInputDialog("Please enter a number <1000 OR 0 to exit:  ");
            number = Integer.parseInt(input_string);
            while(number!=0){
                if(number>0 && number<=999){
                    if(number < 0){
                        JOptionPane.showMessageDialog(null, "Please enter positive number greater than 0");
                    } else {
//                        System.out.println("NUMBER AFTER CONVERSION:\t");
                        numberToWord(((number / 100) % 10), " HUNDRED");
                        numberToWord((number % 100), " ");
                    }

                } else{
                   input_string= JOptionPane.showInputDialog("..DATA ERROR.. "
                            +"\nplease enter a number <1000");
                   number = Integer.parseInt(input_string);
                }
                
            }
        }

        public static void numberToWord(int num, String val) {
            String ones[] = {" ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN", " ELEVEN", " TWELVE", " THIRTEEN", " FOURTEEN", " FIFTEEN", " SIXTEEN", " SEVENTEEN", " EIGHTEEN", " NINETEEN"
            };
            String tens[] = {" ", " ", " TWENTY", " THIRTY", " FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY", " NINETY"};
            if (num > 19) {
                JOptionPane.showMessageDialog(null,tens[num / 10] + " " + ones[num % 10]);
            } else {
                JOptionPane.showMessageDialog(null, ones[num]);
            }
//            if (num > 0) {
//              JOptionPane.showMessageDialog(null,val);
//            }
        }
    }

Answer 1

您在一个单独的方法调用中传递提醒和商，相反，请向numberToword方法添加新参数，并使用

NumberToWord（（（number/100）%10），"HUNDRED"，（number%100））；

public static void numberToWord(int num, String val, int num2) {
    String ones[] = { " ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN",
            " ELEVEN", " TWELVE", " THIRTEEN", " FOURTEEN", " FIFTEEN", " SIXTEEN", " SEVENTEEN", " EIGHTEEN",
            " NINETEEN" };
    String tens[] = { " ", " ", " TWENTY", " THIRTY", " FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY",
            " NINETY" };
    if (num2 > 19) {
        JOptionPane.showMessageDialog(null, ones[num] + val + tens[num2 / 10] + " " + ones[num2 % 10]);
    } else {
        JOptionPane.showMessageDialog(null, ones[num] + val);
    }
}