给一个不多于 5 位的正整数

package cskaoyan;
 
public class cskaoyan24 {
    private int number;
 
    @org.junit.Test
    public void positiveInteger() {
        java.util.Scanner in = new java.util.Scanner(System.in);
        number = in.nextInt();
 
        System.out.println(number + "是" + figure(number) + "位数");
        System.out.println(number + "逆序打印出各位数字:" + reverse(number));
 
        in.close();
    }
 
    private String reverse(int number) {
        StringBuffer str = new StringBuffer(Integer.toString(number));
        StringBuffer strReverse = str.reverse();
        return strReverse.toString();
    }
 
    private int figure(int number) {
        int result = 0;
 
        if (number == 0) {
            result = 1;
        } else {
            while (number > 0) {
                number /= 10;
                result++;
            }
        }
 
        return result;
    }
}