IO流-反序列流的应用

从对象流中读取若干对象（tips：若不确定对象个数可以放入ArrayList中，强行读取可能会报错）

 反序列流读取时要强转为ArrayList

public class Student implements Serializable {
    private static final long serialVersionUID = 1L;
    private String name;
    private int age;
    private String address;

    public Student() {
    }

    public Student(String name, int age, String address) {
        this.name = name;
        this.age = age;
        this.address = address;
    }

    /**
     * 获取
     * @return name
     */
    public String getName() {
        return name;
    }

    /**
     * 设置
     * @param name
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * 获取
     * @return age
     */
    public int getAge() {
        return age;
    }

    /**
     * 设置
     * @param age
     */
    public void setAge(int age) {
        this.age = age;
    }

    /**
     * 获取
     * @return address
     */
    public String getAddress() {
        return address;
    }

    /**
     * 设置
     * @param address
     */
    public void setAddress(String address) {
        this.address = address;
    }

    public String toString() {
        return "Student{name = " + name + ", age = " + age + ", address = " + address + "}";
    }
}


public class readi {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("..\\IOstream\\writei"));

        ArrayList<Student> slist = (ArrayList<Student>)ois.readObject();

        for (Student s :
                slist) {
            System.out.println(s);
        }

        ois.close();
    }
}


public class writei {
    public static void main(String[] args) throws IOException {
        Student s1 = new Student("x",18,"nanjing");
        Student s2 = new Student("y",19,"xianggan");
        Student s3 = new Student("z",20,"shantou");

        ArrayList<Student> slist = new ArrayList<>();
        slist.add(s1);
        slist.add(s2);
        slist.add(s3);

        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("..\\IOstream\\writei"));

        oos.writeObject(slist);

        oos.close();
    }
}