Question

急求Java课程作业······

设计一个类，用于表示学生的学号，姓名，班级，所学的物理、数学成绩，并串行化该类，创建应用程序来存储和还原该类的串行化对象。

Answer 1

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

class Test {

public static void main(String[] args) throws Exception {
Student s1 = new Student("001", "jack", 1, 88.6, 87.5);
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(
"c:\\stu.file"));
oos.writeObject(s1);

ObjectInputStream ois = new ObjectInputStream(new FileInputStream(
"c:\\stu.file"));
Student stu = (Student) ois.readObject();
System.out.println(stu.getStuNo());
System.out.println(stu.getName());
System.out.println(stu.getGrade());
System.out.println(stu.getPhysicalScore());
System.out.println(stu.getMathScore());
}
}

class Student implements Serializable{

private String stuNo;
private String name;
private int grade;
private double physicalScore;
private double mathScore;

public Student() {

}

public Student(String stuNo, String name, int grade, double physicalScore,
double mathScore) {
this.stuNo = stuNo;
this.name = name;
this.grade = grade;
this.physicalScore = physicalScore;
this.mathScore = mathScore;
}

public String getStuNo() {
return stuNo;
}

public void setStuNo(String stuNo) {
this.stuNo = stuNo;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getGrade() {
return grade;
}

public void setGrade(int grade) {
this.grade = grade;
}

public double getPhysicalScore() {
return physicalScore;
}

public void setPhysicalScore(double physicalScore) {
this.physicalScore = physicalScore;
}

public double getMathScore() {
return mathScore;
}

public void setMathScore(double mathScore) {
this.mathScore = mathScore;
}
}

追问

有没有简单一点的啊，我们还没学那么难的

追答

这就是最简单的，根本不难。
别看代码好像很多似的，下面那个Student类是封装类，封装字段的，getter setter方法由IDE自动生成

Answer 2

你们是学习 计算机的吗？在那里上学的，你们的专业是需要过计算机几级的？用不着 这样的作业吧