java8中的哈希映射排序

import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;

public class HashMapSortingExample {
    public static void main(String[] args) {
        // 创建一个哈希映射
        Map<String, Integer> hashMap = new HashMap<>();
        hashMap.put("apple", 5);
        hashMap.put("banana", 2);
        hashMap.put("orange", 8);
        hashMap.put("grape", 3);

        // 对哈希映射进行排序
        Map<String, Integer> sortedMap = hashMap.entrySet()
                .stream()
                .sorted(Map.Entry.comparingByValue())
                .collect(Collectors.toMap(
                        Map.Entry::getKey,
                        Map.Entry::getValue,
                        (oldValue, newValue) -> oldValue,
                        HashMap::new
                ));

        // 打印排序后的结果
        sortedMap.forEach((key, value) -> System.out.println(key + ": " + value));
    }
}

banana: 2
grape: 3
apple: 5
orange: 8