如何在不显式调用.properties文件的getter方法的情况下从其获取属性

Properties prop = new Properties();
try {
    prop.load(new FileInputStream("config.properties"));
} catch (IOException e) {
    e.printStackTrace();
}

String value = prop.getProperty("key");

import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;

public class PropertiesExample {
    public static void main(String[] args) {
        Properties prop = new Properties();
        try {
            prop.load(new FileInputStream("config.properties"));
        } catch (IOException e) {
            e.printStackTrace();
        }
        
        String value = prop.getProperty("key");
        System.out.println(value);
    }
}