java初级：通过反射对象，给私有属性赋值和取值，方法的赋值和取值

class Student{
	private String name;
	private int age;
	
	public void say(String name,int age) {
		System.out.println(name+age);
	}
	
}
public class Test1 {

	public static void main(String[] args) throws Exception, SecurityException {
		
		Class clazz = Student.class;
		Field field = clazz.getDeclaredField("name");
		field.setAccessible(true);
		Student student = (Student)clazz.newInstance();
		field.set(student, "牛牛昕");
		System.out.println(field.get(student));

	}
}


public class Test2 {

	public static void main(String[] args) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException {
		Class clazz = Student.class;
		Method method = clazz.getMethod("say", String.class,int.class);
		method.invoke(clazz.newInstance(), "牛牛昕",18);
	}
}