java - java 序数 - Java I 类

Question

一直提示输入 1 到 10 的数字 - 结果应将 st、rd、th 和 nd 添加到数字中。编写一个程序，提示用户输入 1 到 10 之间的任意整数，然后以序数形式显示该整数并附加后缀。

public class Ordinals {

    public static String Ordinals(int i) {

            System.out.println("Enter an integer between 0 to 10: ");
            Scanner input = new Scanner(System.in);


            int hundred = value % 100;
            int tens = value % 10;
            if (hundred - tens == 10) {
                return "th";
            }
            switch (tens) {
            case 1:
                return "st";
            case 2:
                return "nd";
            case 3:
                return "rd";
            default:
                return "th";

            }


        public static void main(String[] args) {
            Ordinals number = new Ordinals();
            for (int i = 1; i <= 10; i++) {
                String st = number.Ordinals(i);
                System.out.println(i + " = " + i + st);
            }
        }
    }

Answer 1

在我看来，最好将 Scanner 移至 main:

public static void main(String[] args) {
    Ordinals number = new Ordinals();
    Scanner input = new Scanner(System.in);
    while(true){
        System.out.println("Enter an integer between 0 to 10: ");
        int i = input.nextInt();
        System.out.println(i+number.Ordinals(i));
    }
}

然后添加到序数:

int value = i;

方法将是独立的表单输入类型。