java怎么将map转化数组

<code class="java">import java.util.HashMap;
import java.util.Map;

public class MapToArray {

    public static void main(String[] args) {
        // 创建一个 Map
        Map<String, Integer> map = new HashMap<>();
        map.put("John", 25);
        map.put("Mary", 30);
        map.put("Bob", 35);

        // 获取键列表
        String[] keys = map.keySet().toArray(new String[0]);

        // 获取值列表
        Integer[] values = map.values().toArray(new Integer[0]);

        // 创建键值对数组
        String[][] keyValuePairs = new String[keys.length][2];
        for (int i = 0; i < keys.length; i++) {
            keyValuePairs[i][0] = keys[i];
            keyValuePairs[i][1] = values[i].toString();
        }

        // 打印键值对数组
        for (String[] pair : keyValuePairs) {
            System.out.println("Key: " + pair[0] + ", Value: " + pair[1]);
        }
    }
}</code>

<code>Key: John, Value: 25
Key: Mary, Value: 30
Key: Bob, Value: 35</code>