import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.lang.reflect.Constructor;
public class Student  {

    public void method(){
        System.out.println("Hello");
    }
    public static void main(String[] args) throws Exception {

        //通過new呼叫了無參構造建立物件
        Student student1 = new Student();
        student1.method();
        //通過Class類中的newInstance建立物件
        Student student2 = Student.class.newInstance();
        student2.method();
        //通過Constructor中的newInstance建立物件
        Constructor<Student> constructor = Student.class.getConstructor();
        Student student3 = constructor.newInstance();
        student3.method();
        //通過clone建立物件
        Student student4 =(Student) student3.clone();
        student4.method();
        //通過序列化和反序列化建立物件
        ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream("檔名"));
        Student student5 = (Student)objectInputStream.readObject();
        student5.method();
    }
}