如何使用反射来调用私有方法？

import java.lang.reflect.Method;

public class ReflectionDemo {
    public static void main(String[] args) throws Exception {
        MyClass myClass = new MyClass();
        Method method = MyClass.class.getDeclaredMethod("myPrivateMethod");
        method.setAccessible(true);
        method.invoke(myClass);
    }
}

class MyClass {
    private void myPrivateMethod() {
        System.out.println("This is a private method.");
    }
}