public class Stock { private string symbol; privateString name; private double previousClosingPrice; private double currentPrice; public stock(){ public Stock(string newSymbol，string newName) {symbol = newSymbol;name = newName; public double getChangePercent() {return (currentPrice - previousClosingPrice)/previousClosingPrice; public double getPreviousClosingPrice(){return previousClosingPrice; public double getCurrentPrice() ( return currentPrice; public void setCurrentPrice(double newCurrentPrice) currentPrice = newCurrentPrice; public void setPreviousClosingPrice(double newPreviousClosingPrice){previousClosingPrice = newPreviousClosingPrice; Which of the followings has an error if it is written in a separate class called TestStock,java?A)Stock stock = new Stock("WKUCS"，"Wenzhou-Kean Univ.Computer Science"); stock.setCurrentPrice(90); System.out.printIn("percentage change is:" + stock.getChangePercent()); Stock stock = new Stock("WKUCS"，"Wenzhou-Kean Univ， Computer Science");B)stock.setPreviousClosingPrice(1231); stock.setCurrentPrice(2231); System.out.printIn("Previous Price:"+ stockgetPreviousClosingPrice());System.out.printIn("Current Price:+ stock.getCurrentPrice());(C) Stock stock = new Stock("WKUCS"，"Wenzhou-Kean Univ.Computer Science");stock.setCurrentPrice(100):System.out.println("Stock Name is: "+ stock.name); DStock stock=new Stock();System.out.printIn("percentage change is:"+ stock.getCurrentPrice());

class CarDriver { private String name; public CarDriver() {} //setter/getter //toString }

private String name; public CarDriver() {} public String getName() { return name; } public void setName(String name) { this.name = name; } @Override public String toString() { ...

java private 初始化_Java实例域初始化方式1.构造器public class Employee { private String name; private...

1. 声明时初始化：可以在实例域声明时进行初始化，例如：private String name = "John"; 2. 构造器初始化：在构造器中对实例域进行初始化，例如： java public class Employee { private String name; ...

public class User { private String username; private String password; private String confirmPassword; private Date birthday; } 构造函数、getter和setter方法

public class User { private String username; private String password; private String confirmPassword; private Date birthday; // 构造函数 public User(String username, String password, String ...

public _______class Employee { private String name; private String address; private int number; public abstract double computePay( );//其余代码

private String name; private String address; private int number; public abstract double computePay( ); // 其他代码 } 在这个类中，我们声明了一个名为Employee的public类，并定义了三个私有...

解释代码public class Book { private String name; public Book(String name) { this.name = name; } public String getName() { return name; } }

这段代码定义了一个名为 Book 的类，其中包含一个私有的字符串类型的属性 name 和一个公共的构造函数 Book(String name)，用于初始化 name 属性。同时，还有一个公共的方法 getName()，用于获取 name 属性的值。

51、(1分)假设我们有以下代码： public class Student private String name; private int id; public Student(String name, int id) this.name name; this.id = id;

private String name; private int id; public Student(String name, int id) { this.name = name; this.id = id; } } 那么这段代码就定义了一个名为Student的类，包含两个私有属性name和id，以及一个...

public class EncryptConfig { private Boolean enable; private String key; private String iv; private String salt; } 根据上述类写出可以通过build方法构造实例的代码

public class EncryptConfigBuilder { private Boolean enable; private String key; private String iv; private String salt; public EncryptConfigBuilder() {} public EncryptConfigBuilder withEnable...

public class Person private String name=“ Person” int age=0; Public class Child extends Person public String grade; public static void main (String args) Person p = new Child(); System.out.println(p.name);

private String name = "Person"; private int age=0; } public class Child extends Person { public String grade; public static void main(String[] args) { Person p = new Child(); System.out....

import java.util.Scanner; class Student { private int id; private String name; private int age; private String gender; private double grade; public void setGrade(double grade) { this.grade = grade; } public Stude

public Student(int id, String name, int age, String gender, double grade) { this.id = id; this.name = name; this.age = age; this.gender = gender; this.grade = grade; } public int getId() { ...

帮我解释一下这段代码package bean; public class User { private String user; private String pwd; private String name; private String xxx; private int age; public String getUser() { return user; } public

这个类有五个私有成员变量，分别是 user、pwd、name、xxx 和 age。这些成员变量的作用是存储用户的信息。私有成员变量只能在本类的内部访问和修改。类中还有一个公有的 getter 方法，即 getUser()，用于获取 user ...

public class Textbook { private String name; private String author; public Textbook(String name, String author) { this.name = name; this.author = author; } public String getName() { return name; } public String getAuthor() { return author; } }增加详细注释

public Textbook(String name, String author) { this.name = name; this.author = author; } // 返回变量name的值 public String getName() { return name; } // 返回变量author的值 public String ...

Java设计一个User类并封装对应的数据,例如可以定义如下成员变量{privateString name private double height private double salary }

public User(String name, double height, double salary) { this.name = name; this.height = height; this.salary = salary; } public void setName(String name) { this.name = name; } public String...

完善下列代码：public class Student { private int id; private String name; private int classId; private int teacherId; // 构造函数、Getter和Setter方法 } public class Class { private int id; private String name; private int teacherId; // 构造函数、Getter和Setter方法 } public class Teacher { private int id; private String name; // 构造函数、Getter和Setter方法 }

public Student(int id, String name, int classId, int teacherId) { this.id = id; this.name = name; this.classId = classId; this.teacherId = teacherId; } public int getId() { return id; } ...

public class Cai_List { private int id; private int type_id; private String type_name; private String cp_name; private String zuofa; private String texing; private String tishi; private String tiaoliao; private String yuanliao;}

这段代码看起来像是一个 Java ...它有一些成员变量，包括 id、type_id、type_name、cp_name、zuofa、texing、tishi、tiaoliao 和 yuanliao。这些变量的类型分别是 int 和 String。这个类可能是用来表示一道菜谱的信息。

public class Student{ private String name; public void setName(char n) { name=n; } public void getName(){ return name; } public static void main(String args){ new Student(); } }

private String name; public void setName(String n) { name = n; } public String getName() { return name; } public static void main(String[] args) { Student s = new Student(); } } 这个...

Main.java:6: error: invalid method declaration; return type required public Book(String name, double price) ^

public Book(String name, double price) { this.name = name; this.price = price; } // other methods and variables } 请注意，构造函数的名称必须与类名相同，并且不能使用 void 或任何其他返回...

相关推荐

Ruby 之 class 中的 private、 protected、public

JS中的public和private对象,即static修饰符

php class中public,private,protected的区别以及实例分析

class CarDriver { private String name; public CarDriver() {} //setter/getter //toString }

java private 初始化_Java实例域初始化方式1.构造器public class Employee { private String name; private...

public class User { private String username; private String password; private String confirmPassword; private Date birthday; } 构造函数、getter和setter方法

public _______class Employee { private String name; private String address; private int number; public abstract double computePay( );//其余代码

解释代码public class Book { private String name; public Book(String name) { this.name = name; } public String getName() { return name; } }

51、(1分)假设我们有以下代码： public class Student private String name; private int id; public Student(String name, int id) this.name name; this.id = id;

public class EncryptConfig { private Boolean enable; private String key; private String iv; private String salt; } 根据上述类写出可以通过build方法构造实例的代码

public class Person private String name=“ Person” int age=0; Public class Child extends Person public String grade; public static void main (String args) Person p = new Child(); System.out.println(p.name);

import java.util.Scanner; class Student { private int id; private String name; private int age; private String gender; private double grade; public void setGrade(double grade) { this.grade = grade; } public Stude

帮我解释一下这段代码package bean; public class User { private String user; private String pwd; private String name; private String xxx; private int age; public String getUser() { return user; } public

public class Textbook { private String name; private String author; public Textbook(String name, String author) { this.name = name; this.author = author; } public String getName() { return name; } public String getAuthor() { return author; } }增加详细注释

Java设计一个User类并封装对应的数据,例如可以定义如下成员变量{privateString name private double height private double salary }

public class Cai_List { private int id; private int type_id; private String type_name; private String cp_name; private String zuofa; private String texing; private String tishi; private String tiaoliao; private String yuanliao;}

public class Student{ private String name; public void setName(char n) { name=n; } public void getName(){ return name; } public static void main(String args){ new Student(); } }

Main.java:6: error: invalid method declaration; return type required public Book(String name, double price) ^

最新推荐

实例分析Java中public static void main(String args[])是什么意思

node-v18.18.2-headers.tar.xz

node-v7.7.3-headers.tar.xz

zigbee-cluster-library-specification

管理建模和仿真的文件

实现实时数据湖架构：Kafka与Hive集成

可见光定位LED及其供电硬件具体型号，广角镜头和探测器，实验设计具体流程步骤，

JSBSim Reference Manual

"互动学习：行动中的多样性与论文攻读经历"

实现实时监控告警系统：Kafka与Grafana整合