第七章第三题（计算数字的出现次数）(Count occurrence of numbers) - 编程练习题答案

Enter the integers between 1 and 100: 2 5 6 5 4 3 23 43 2 0
2 occurs 2 times
3 occurs 1 time
4 occurs 1 time
5 occurs 2 times
6 occurs 1 time
23 occurs 1 time
43 occurs 1 time

// https://cn.fankuiba.com
import java.util.Scanner;

public class Ans7_3_page236 {
    public static void main(String[] args) {
        int[] number = new int [101];
        Scanner input = new Scanner(System.in);
        int num;
        System.out.print("Enter the integers between 1 and 100: ");
        do {
            num = input.nextInt();
            number[num] = number[num] + 1;
        }
        while (num != 0);
        for (int i = 1; i < number.length; i++) {
            if (number[i] == 1) {
                System.out.println(i + " occurs " + number[i] + " time");
            }else if (number[i] > 1)
                System.out.println(i + " occurs " + number[i] + " times");
        }
    }
}