java 打印map

import java.util.HashMap;
import java.util.Map;

public class PrintMapExample {
    public static void main(String[] args) {
        Map<String, Integer> map = new HashMap<>();
        map.put("One", 1);
        map.put("Two", 2);
        map.put("Three", 3);

        for (Map.Entry<String, Integer> entry : map.entrySet()) {
            System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
        }
    }
}

import java.util.HashMap;
import java.util.Map;

public class PrintMapExample {
    public static void main(String[] args) {
        Map<String, Integer> map = new HashMap<>();
        map.put("One", 1);
        map.put("Two", 2);
        map.put("Three", 3);

        map.forEach((key, value) -> System.out.println("Key: " + key + ", Value: " + value));
    }
}

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class PrintMapExample {
    public static void main(String[] args) {
        Map<String, Integer> map = new HashMap<>();
        map.put("One", 1);
        map.put("Two", 2);
        map.put("Three", 3);

        Iterator<Map.Entry<String, Integer>> iterator = map.entrySet().iterator();
        while (iterator.hasNext()) {
            Map.Entry<String, Integer> entry = iterator.next();
            System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
        }
    }
}

Map<String, Integer> sortedMap = new TreeMap<>(map);
sortedMap.forEach((key, value) -> System.out.println("Key: " + key + ", Value: " + value));