刚学Java，简单的Java题，3q解答

题目就是图片所示；（凑字数66666666666666666666666666666666666666）

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
 
 class Demo {
    public static void main(String[] args) {
 
        // 用来统计每个数字出现的次数
        Map<Integer, Integer> map = new HashMap<>();
 
        System.out.println("Enter the integers between 1 and 100:");
        Scanner scanner = new Scanner(System.in);
        int input;
        while ((input = scanner.nextInt()) != 0) {
            Integer count = map.get(input);
            map.put(input, count == null ? 1 : count + 1);
        }
 
        int size = map.size();
        int[] num = new int[size]; // 存储输入数字
        int[] count = new int[size]; // 存储对应数字的次数
        int i = 0;
        for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
            num[i] = entry.getKey();
            count[i] = entry.getValue();
            i++;
        }
 
        // 根据出现次数排序
        for (int j = 0; j < size - 1; j++) {
            for (int k = j; k < size; k++) {
                if (count[j] < count[k]) {
                    int temp = count[j];
                    count[j] = count[k];
                    count[k] = temp;
 
                    // 数字数组也同步交换
                    temp = num[j];
                    num[j] = num[k];
                    num[k] = temp;
                }
            }
        }
 
        // 输入
        for (int j = 0; j < size; j++) {
            if(count[j]<=1)
            System.out.println(num[j] + " occur " + count[j]+" time");
            else
            System.out.println(num[j] + " occur " + count[j]+" times");
        }
    }
 
}

用map