反射获取成员方法并使用练习

public class ReflectDemo04 {
    public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
        //获取Class对象
        Class<?> c = Class.forName("com.reflect_02.Student");

        Constructor<?> con = c.getConstructor();
        Object obj = con.newInstance();

        Method m1 = c.getMethod("method1");
        m1.invoke(obj);

        Method m2 = c.getMethod("method2", String.class);
        m2.invoke(obj,"林青霞");

        Method m3 = c.getMethod("method3", String.class, int.class);
        Object o = m3.invoke(obj, "林青霞", 30);
        System.out.println(o);

        Method function = c.getDeclaredMethod("function");
        function.setAccessible(true);
        function.invoke(obj);
    }
}

运行结果：