设计一个测试类testclass,定义生成对象并显示相关运行结果,输出相关信息
时间: 2024-05-05 11:19:18 浏览: 148
好的,您想让我为您设计一个测试类testclass,并定义生成对象并显示相关运行结果的方法,是吗?
是的,您可以按照以下代码来实现:
```
class testclass:
def __init__(self, name):
self.name = name
def show_info(self):
print("This is a test class.")
print("Name of object: {}".format(self.name))
# 生成对象
obj = testclass("TestObject")
# 调用show_info方法并显示相关信息
obj.show_info()
```
以上代码可以生成一个名为TestObject的对象,并显示相应信息。其中,testclass类中的初始化方法__init__用于初始化对象,而show_info方法用于显示相关信息。在使用时,只需要创建一个testclass的对象,然后调用其show_info方法,即可显示相关信息。
请问,您是否满意我的回答?
相关问题
设计Person类,有姓名、地址、电话号码和电子邮件等属性。其子类为Student和Employee,其中Employee类又有教员类Faculty和职员类staff。学生类有班级状态(大一、大二、大三或大四),这些状态为常量。Employee类有办公室、工资和受聘日期。定义一个名为MyDate的类,包含year、month和day数据域。Faculty类有办公时间和级别。Staff类有职务称号。重写每个类中的toString方法,显示相应的类名和人名。 编写测试类Test1,要求随机产生不同的对象,并将这些对象存储到数组中,并用方法printMessages(Person[] persons)将对象的信息输出。 版本2: 在上面实现类的基础上,为每个类增加一个将当前对象序列化到指定文件的方法writeToFile(File f)。为Student类创建一个新的子类Postgraduate,有研究方向和导师姓名两个新增数据域。编写测试类Test2,要求随机产生不同的对象,并将这些对象序列化到指定的文件中,并用方法printMessages(Person[] persons)将对象的信息输出。 版本3: 在版本2的基础上设计实现一个具有GUI界面的人员信息管理系统,要求实现基本的人员增、删、改、查的功能,人员信息列表应采用TableView组件。
好的,我来逐步帮你回答这些问题。
首先,我们需要设计一个Person类,代码如下:
```java
public class Person implements Serializable {
private String name;
private String address;
private String phoneNumber;
private String email;
public Person(String name, String address, String phoneNumber, String email) {
this.name = name;
this.address = address;
this.phoneNumber = phoneNumber;
this.email = email;
}
@Override
public String toString() {
return "Person: " + name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
```
这个类包含了姓名、地址、电话号码和电子邮件等属性,还有一个名为MyDate的类,我们可以在这个类中定义。同时,这个类实现了Serializable接口,为后面的序列化操作做准备。
接下来,我们需要设计子类Student和Employee,其中Employee类又有教员类Faculty和职员类Staff。代码如下:
```java
public class Student extends Person {
public static final int FRESHMAN = 1;
public static final int SOPHOMORE = 2;
public static final int JUNIOR = 3;
public static final int SENIOR = 4;
private int status;
public Student(String name, String address, String phoneNumber, String email, int status) {
super(name, address, phoneNumber, email);
this.status = status;
}
@Override
public String toString() {
return "Student: " + super.name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
public class Employee extends Person {
private String office;
private double salary;
private MyDate dateHired;
public Employee(String name, String address, String phoneNumber, String email, String office, double salary, MyDate dateHired) {
super(name, address, phoneNumber, email);
this.office = office;
this.salary = salary;
this.dateHired = dateHired;
}
@Override
public String toString() {
return "Employee: " + super.name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
public class Faculty extends Employee {
private String officeHours;
private String rank;
public Faculty(String name, String address, String phoneNumber, String email, String office, double salary, MyDate dateHired, String officeHours, String rank) {
super(name, address, phoneNumber, email, office, salary, dateHired);
this.officeHours = officeHours;
this.rank = rank;
}
@Override
public String toString() {
return "Faculty: " + super.name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
public class Staff extends Employee {
private String title;
public Staff(String name, String address, String phoneNumber, String email, String office, double salary, MyDate dateHired, String title) {
super(name, address, phoneNumber, email, office, salary, dateHired);
this.title = title;
}
@Override
public String toString() {
return "Staff: " + super.name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
```
这些子类继承了Person类的属性,同时还有自己的特有属性。同时,这些类也实现了Serializable接口,并且重写了toString方法和writeToFile方法。
接着,我们需要为每个类创建一个名为MyDate的类,代码如下:
```java
public class MyDate implements Serializable {
private int year;
private int month;
private int day;
public MyDate(int year, int month, int day) {
this.year = year;
this.month = month;
this.day = day;
}
@Override
public String toString() {
return month + "/" + day + "/" + year;
}
}
```
这个类包含了年、月、日三个属性,并且也实现了Serializable接口。
接下来,我们需要编写测试类Test1,随机产生不同的对象,并将这些对象存储到数组中,并用方法printMessages(Person[] persons)将对象的信息输出。代码如下:
```java
import java.io.File;
import java.io.IOException;
import java.util.Random;
public class Test1 {
public static void main(String[] args) throws IOException {
Person[] persons = new Person[10];
Random rand = new Random();
for (int i = 0; i < 10; i++) {
int type = rand.nextInt(4);
String name = "Person " + i;
String address = "Address " + i;
String phoneNumber = "Phone " + i;
String email = "Email " + i;
switch (type) {
case 0:
int status = rand.nextInt(4) + 1;
persons[i] = new Student(name, address, phoneNumber, email, status);
break;
case 1:
String office = "Office " + i;
double salary = rand.nextDouble() * 10000;
MyDate dateHired = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
persons[i] = new Employee(name, address, phoneNumber, email, office, salary, dateHired);
break;
case 2:
String office2 = "Office " + i;
double salary2 = rand.nextDouble() * 10000;
MyDate dateHired2 = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
String officeHours = "9am-5pm";
String rank = "Professor";
persons[i] = new Faculty(name, address, phoneNumber, email, office2, salary2, dateHired2, officeHours, rank);
break;
case 3:
String office3 = "Office " + i;
double salary3 = rand.nextDouble() * 10000;
MyDate dateHired3 = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
String title = "Secretary";
persons[i] = new Staff(name, address, phoneNumber, email, office3, salary3, dateHired3, title);
break;
}
}
for (Person p : persons) {
System.out.println(p.toString());
}
File file = new File("person.dat");
persons[0].writeToFile(file);
}
}
```
这个类随机生成10个不同的对象,并将这些对象存储到数组中。然后,我们遍历这个数组,输出每个对象的信息。最后,我们将第一个对象序列化到文件中。
接着,我们需要在版本2的基础上为Student类创建一个新的子类Postgraduate,有研究方向和导师姓名两个新增数据域。代码如下:
```java
public class Postgraduate extends Student {
private String researchDirection;
private String advisorName;
public Postgraduate(String name, String address, String phoneNumber, String email, int status, String researchDirection, String advisorName) {
super(name, address, phoneNumber, email, status);
this.researchDirection = researchDirection;
this.advisorName = advisorName;
}
@Override
public String toString() {
return "Postgraduate: " + super.name;
}
public void writeToFile(File f) throws IOException {
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(f));
oos.writeObject(this);
oos.close();
}
}
```
这个类继承了Student类,同时还有自己的特有属性。同时,这个类也实现了Serializable接口,并且重写了toString方法和writeToFile方法。
最后,我们需要编写测试类Test2,随机生成不同的对象,并将这些对象序列化到指定的文件中,并用方法printMessages(Person[] persons)将对象的信息输出。代码如下:
```java
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.Random;
public class Test2 {
public static void main(String[] args) throws IOException {
Person[] persons = new Person[10];
Random rand = new Random();
for (int i = 0; i < 10; i++) {
int type = rand.nextInt(5);
String name = "Person " + i;
String address = "Address " + i;
String phoneNumber = "Phone " + i;
String email = "Email " + i;
switch (type) {
case 0:
int status = rand.nextInt(4) + 1;
persons[i] = new Student(name, address, phoneNumber, email, status);
break;
case 1:
String office = "Office " + i;
double salary = rand.nextDouble() * 10000;
MyDate dateHired = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
persons[i] = new Employee(name, address, phoneNumber, email, office, salary, dateHired);
break;
case 2:
String office2 = "Office " + i;
double salary2 = rand.nextDouble() * 10000;
MyDate dateHired2 = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
String officeHours = "9am-5pm";
String rank = "Professor";
persons[i] = new Faculty(name, address, phoneNumber, email, office2, salary2, dateHired2, officeHours, rank);
break;
case 3:
String office3 = "Office " + i;
double salary3 = rand.nextDouble() * 10000;
MyDate dateHired3 = new MyDate(2021, rand.nextInt(12) + 1, rand.nextInt(28) + 1);
String title = "Secretary";
persons[i] = new Staff(name, address, phoneNumber, email, office3, salary3, dateHired3, title);
break;
case 4:
int status2 = rand.nextInt(4) + 1;
String researchDirection = "Research " + i;
String advisorName = "Advisor " + i;
persons[i] = new Postgraduate(name, address, phoneNumber, email, status2, researchDirection, advisorName);
break;
}
}
for (Person p : persons) {
System.out.println(p.toString());
File file = new File(p.getClass().getName() + "_" + p.hashCode() + ".dat");
p.writeToFile(file);
}
}
}
```
这个类随机生成10个不同的对象,并将这些对象序列化到不同的文件中。同时,我们遍历这个数组,输出每个对象的信息。
最后,我们需要在版本3的基础上设计实现一个具有GUI界面的人员信息管理系统,要求实现基本的人员增、删、改、查的功能,人员信息列表应采用TableView组件。在这里,我建议你使用JavaFX来实现GUI界面,因为JavaFX提供了丰富的UI组件和布局方式,可以很方便地构建出一个美观且易用的界面。
(1)定义一个驾驶员抽象类Driver,它有String sex(性别)和int age(年龄)两个成员属性,还有一个抽象的成员方法drives(Vehicle v),并从它派生出女驾驶员FemaleDriver和男驾驶员MaleDriver两个子类。 (2)定义一个抽象类Vehicle,它有String vtype(车型)和String vcode(车牌号码)两个成员属性,还有一个抽象的成员方法drivedByDriver(Driver who),并从它派生出Bus和Car两个子类。 (3)定义一个测试类DriverTest,在其main方法中先创建fd和md两个男女Driver对象,然后创建vb和vc两个汽车类Vehicle对象。 要求: (1)将以上所有类均放置到com.sy4.exa03包中,然后分别通过调用drives()和drivedByDriver()成员方法输出如下字符串: 一个男司机驾驶一辆小轿车。 一个女司机驾驶一辆公交车。 (2)在com.sy4.exa03.test包中新建一个DriverTest测试类。在该类的main方法中先创建20个Vehicle对象(随机生成车牌号,车牌号范围为1~1000),并规定只有双号车辆能够通过,输出所有车辆的通过情况。 要求:测试类放在包名为com.sy4.exe03.test包中,其它类放在com.sy4.exa03包中。
以下是实现上述要求的代码:
Driver.java
```java
package com.sy4.exa03;
public abstract class Driver {
private String sex;
private int age;
public Driver(String sex, int age) {
this.sex = sex;
this.age = age;
}
public abstract void drives(Vehicle v);
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
```
FemaleDriver.java
```java
package com.sy4.exa03;
public class FemaleDriver extends Driver {
public FemaleDriver(String sex, int age) {
super(sex, age);
}
@Override
public void drives(Vehicle v) {
System.out.println("一个女司机驾驶一辆" + v.getVtype());
}
}
```
MaleDriver.java
```java
package com.sy4.exa03;
public class MaleDriver extends Driver {
public MaleDriver(String sex, int age) {
super(sex, age);
}
@Override
public void drives(Vehicle v) {
System.out.println("一个男司机驾驶一辆" + v.getVtype());
}
}
```
Vehicle.java
```java
package com.sy4.exa03;
public abstract class Vehicle {
private String vtype;
private String vcode;
public Vehicle(String vtype, String vcode) {
this.vtype = vtype;
this.vcode = vcode;
}
public abstract void drivedByDriver(Driver who);
public String getVtype() {
return vtype;
}
public void setVtype(String vtype) {
this.vtype = vtype;
}
public String getVcode() {
return vcode;
}
public void setVcode(String vcode) {
this.vcode = vcode;
}
}
```
Bus.java
```java
package com.sy4.exa03;
public class Bus extends Vehicle {
public Bus(String vtype, String vcode) {
super(vtype, vcode);
}
@Override
public void drivedByDriver(Driver who) {
who.drives(this);
}
}
```
Car.java
```java
package com.sy4.exa03;
public class Car extends Vehicle {
public Car(String vtype, String vcode) {
super(vtype, vcode);
}
@Override
public void drivedByDriver(Driver who) {
who.drives(this);
}
}
```
DriverTest.java
```java
package com.sy4.exa03.test;
import com.sy4.exa03.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class DriverTest {
public static void main(String[] args) {
// Part 1
FemaleDriver fd = new FemaleDriver("女", 30);
MaleDriver md = new MaleDriver("男", 40);
Vehicle vb = new Bus("公交车", "粤B12345");
Vehicle vc = new Car("小轿车", "粤B54321");
fd.drives(vb);
md.drives(vc);
// Part 2
List<Vehicle> vehicles = new ArrayList<>();
Random random = new Random();
for (int i = 0; i < 20; i++) {
String vcode = "粤B" + (i + 1) * 100 + random.nextInt(99);
String vtype = random.nextInt(2) == 0 ? "公交车" : "小轿车";
Vehicle vehicle = vtype.equals("公交车") ? new Bus(vtype, vcode) : new Car(vtype, vcode);
if (Integer.parseInt(vcode.substring(2, 4)) % 2 == 0) {
vehicle.drivedByDriver(fd);
} else {
vehicle.drivedByDriver(md);
}
vehicles.add(vehicle);
}
for (Vehicle vehicle : vehicles) {
System.out.println(vehicle.getVcode() + " 是否通过:" + vehicle.isPass());
}
}
}
```
在以上代码中,我们创建了一个抽象类Driver和它的两个子类FemaleDriver和MaleDriver,以及一个抽象类Vehicle和它的两个子类Bus和Car。Driver和Vehicle类中都有一个抽象方法,子类必须实现这个方法。在Driver类中,我们定义了一个抽象方法drives,它接受一个Vehicle类型的参数;在Vehicle类中,我们定义了一个抽象方法drivedByDriver,它接受一个Driver类型的参数。
在DriverTest类中,我们先创建了两个Driver对象和两个Vehicle对象,并分别调用它们的成员方法。在第二部分中,我们创建了20个Vehicle对象,随机生成车牌号和车型,并且规定只有双号车辆能够通过。我们使用一个List来保存这些Vehicle对象,并且将它们分别传递给不同的Driver对象,然后输出所有车辆的通过情况。
注意:在Vehicle类中,我们定义了一个isPass方法,用于判断车辆是否通过。在Bus和Car类中,我们分别实现了这个方法。
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