如何在Java中定义和访问静态字典？

import java.util.HashMap;

public class StaticDictionary {
    public static HashMap<String, String> dictionary = new HashMap<>();

    static {
        // 初始化字典
        dictionary.put("key1", "value1");
        dictionary.put("key2", "value2");
        // 添加更多的键值对
    }

    public static void main(String[] args) {
        // 访问字典
        String value1 = dictionary.get("key1");
        System.out.println(value1);  // 输出：value1
        
        // 添加新的键值对
        dictionary.put("key3", "value3");
        
        // 遍历字典
        for (String key : dictionary.keySet()) {
            String value = dictionary.get(key);
            System.out.println(key + ": " + value);
        }
    }
}

public class StaticDictionary {
    public static String[] keys;
    public static String[] values;

    static {
        // 初始化字典
        keys = new String[]{"key1", "key2", "key3"};
        values = new String[]{"value1", "value2", "value3"};
        // 添加更多的键值对
    }

    public static void main(String[] args) {
        // 访问字典
        String value1 = getValue("key1");
        System.out.println(value1);  // 输出：value1
        
        // 遍历字典
        for (int i = 0; i < keys.length; i++) {
            System.out.println(keys[i] + ": " + values[i]);
        }
    }

    public static String getValue(String key) {
        for (int i = 0; i < keys.length; i++) {
            if (keys[i].equals(key)) {
                return values[i];
            }
        }
        return null;
    }
}