43. (1分)假设我们有以下代码:class Student l private String name;private int id; public Student(String name, int id) fthis.name = name; this.id = id; @Override public boolean equals(Object obj) (if (this == obj) ( return true; if (obj == null ll getClass() != obj.getClass())return false; Student other = (Student) obj;returnid == other.id; 以下哪个选项是正确的hashCode()方法实现?

java代码-student

public Student(String name, int age, String id) { this.name = name; this.age = age; this.id = id; } // Getter and Setter methods public void enroll() { System.out.println("Student " + name +...

StudentClass.rar_Java编程_Java_

9. **文件结构**：由于只有一个文件名StudentClass，我们可以假设它是一个独立的Java源代码文件，包含了整个StudentClass的定义。在实际项目中，相关类可能会被组织到多个文件中，并按功能划分模块。理解并...

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 Student { private String name; private String id; private String gender; private int age; private String major; public Student(String name, String id, String gender, int age, String major) { this.name = name; this.id = id; this.gender = gender; this.age = age; this.major = major; } // getter and setter methods}

这是一个Java类，名为Student，它有5个私有属性，分别是name、id、gender、age和major。它还有一个构造函数，用于初始化这些属性的值。此外，它还包含一些getter和setter方法，用于获取和设置属性值。这个类的作用...

abstract class Person { private String name; private int age; public Person(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public int getAge() { return age; } public abstract void say(); } class Student extends Person{ public Student(String name, int age) { super(name, age); } public void say() { System.out.println("学生姓名："+this.getName()+",年龄： "+this.getAge()+",负责回答问题。"); } } class Teacher extends Person{ public Teacher(String name, int age) { super(name, age); } public void say() { System.out.println("老师姓名："+this.getName()+",年龄： "+this.getAge()+",负责提出问题。"); } } public class al4_4 { public static void main(String[] args) { Person per1 = new Student("张三", 18); Person per2 = new Teacher("李四", 30); per1.say(); per2.say(); } }

这是一个简单的面向对象程序，其中定义了一个抽象类 Person，它有两个属性 name 和 age，以及一个抽象方法 say()。而子类 Student 和 Teacher 继承了 Person 类，并实现了 say() 方法。在 main() 方法中，我们创建...

/ 创建一个名为 Student 的公开类 public class Student { private String name; private int age;

Student是一个公共类（public class），意味着它可以从其他类中直接访问。这个类有两个私有成员变量： 1. name：代表学生的姓名，通常是个字符串类型，用于存储学生的姓名信息。 2. age：表示学生的年龄，...

public class Student { private String name; private int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; }}

这段代码定义了一个名为 Student 的类，该类有两个私有属性 name 和 age，分别表示学生的姓名和年龄。为了访问这两个属性，该类提供了两个 getter 方法 getName 和 getAge，以及两个 setter 方法 setName 和 setAge...

class Student { private String name; private int number; private Map<String,Integer>hashMap; public Student(String name,int number) { this.name=name; this.number=number; hashMap=new HashMap<>(1000); } }

这段代码定义了一个名为 Student 的类，该类包含了一个 name 字符串和一个 number 整型变量，以及一个 hashMap 对象。在 Student 类的构造函数中，我们通过 new 关键字创建了一个 HashMap 对象，并将...

public class Student { public static void main(String[] args) { Student stu=new Student(); stu.name="Monkey"; stu.stuNo=1000001; stu.sex="man"; stu.grade="first grade"; stu.score=100.00; System.out.println("xingming:"+stu.name+"\nxuehao:"+stu.stuNo+"\nxingbie:"+stu.sex+"\nbanji:"+stu.grade+"\nchenji1:"+stu.score+""); } } class Student{ private String name; private int stuNo; private String sex; private String grade; private double score; }

这是一个关于 Java 编程的...这段代码定义了一个名为 Student 的类，包含了学生的姓名、学号、性别、班级和成绩等属性。在 main 方法中，创建了一个名为 stu 的 Student 对象，并为其属性赋值，最后输出了学生的信息。

class Student { public: Student(double i, string n) { name = n; id = i; total++; } virtual ~Student() {} static int getTotal() { return total; } private: static int total; string name; double id; }; class MaleStudent : private Student { public: MaleStudent(double i, string n) { name = n; id = i; maleCount++; } ~MaleStudent() {} static int getMaleCount() { return maleCount; } private: static int maleCount; string name; double id; }; class FemaleStudent : private Student { public: FemaleStudent(double i, string n) { name = n; id = i; femaleCount++; } ~FemaleStudent() {} static int getFemaleCount() { return femaleCount; } private: static int femaleCount; string name; double id; }; int Student::total = 0; int MaleStudent::maleCount = 0; int FemaleStudent::femaleCount = 0; int main() { MaleStudent male1(1234,"张三"); FemaleStudent female1(1111,"李四"); std::cout << "Male students: " << MaleStudent::getMaleCount() << std::endl; std::cout << "Female students: " << FemaleStudent::getFemaleCount() << std::endl; std::cout << "Total students: " << Student::getTotal() << std::endl; return 0; }修改代码“Student”: 没有合适的默认构造函数可用

好的，对于这份代码，我们需要添加一个默认构造函数来解决“Student: 没有合适的默认构造函数可用”的问题。默认构造函数是一个没有参数的构造函数，它在对象被创建时会被调用。在这份代码中，我们可以在 Student...

public class Student { private String name; private int age; public Student(String name, int age) { this.name = name; this.age = age; } public void speak() { System.out.println("My name is " + name + ", and I am " + age + " years old."); } }这段代码要创建几个类

这段代码已经创建了一个类叫做Student。如果你想要在这个类的外部使用它，你可以在同一个文件或者不同的文件中创建一个新的类，并且在这个类中使用Student类。例如： public class Main { public static void...

完善下列代码：// Student.java public class Student { private String name; private int age; // 其他属性和方法 // Getters和Setters } // Teacher.java public class Teacher { private String name; private String subject; // 其他属性和方法 // Getters和Setters } // Class.java public class Class { private String className; private Teacher teacher; private List<Student> students; // 其他属性和方法 // Getters和Setters } // StudentController.java public class StudentController { private StudentView studentView; // 其他属性和方法 // 初始化方法 // 添加学生 public void addStudent(String name, int age) { // 实现逻辑 } // 删除学生 public void deleteStudent(String name) { // 实现逻辑 } // 获取学生列表 public List<Student> getStudents() { // 实现逻辑 } // 其他操作方法 } // TeacherController.java public class TeacherController { private TeacherView teacherView; // 其他属性和方法 // 初始化方法 // 添加教师 public void addTeacher(String name, String subject) { // 实现逻辑 } // 删除教师 public void deleteTeacher(String name) { // 实现逻辑 } // 获取教师列表 public List<Teacher> getTeachers() { // 实现逻辑 } // 其他

public void deleteStudent(String name) { for (Student student : students) { if (student.getName().equals(name)) { students.remove(student); break; } } } // 获取学生列表 public List<Student>...

package homework; public class Student { class Student{ private String name; private int stuNo; private String sex; private String grade; private double score; } public static void main(String[] args) { Student stu=new Student(); stu.name="Monkey"; stu.stuNo="000001"; stu.sex="man"; stu.grade="first grade"; stu.score="100.00"; System.out.println("姓名:"+stu.name+"学号:"+stu.stuNo+"性别:"+stu.sex+"班级:"+stu.grade+"成绩:"+stu.score+""); } }

这是一个关于 Java 编程的问题，我...这段代码定义了一个名为 Student 的类，包含了学生的姓名、学号、性别、班级和成绩等属性。在 main 方法中，创建了一个 Student 对象 stu，并给其属性赋值，最后输出了学生的信息。

class Student { private: int id; string name; int year; string major; public: Student() { } Student(int id, string name, int year, string major) { this->id = id; this->name = name; this->year = year; this->major = major; } // getter and setter methods };

Student(int id, string name, int year, string major) { this->id = id; this->name = name; this->year = year; this->major = major; } int getId() { return id; } void setId(int id) { this->id =...

public class Student { private String name; private int age; private int score; private static String className = "Class A"; // 无参构造方法 public Student() { } // 有参构造方法 public Student(String name, int age, int score) { this.name = name; this.age = age; this.score = score; } // set / get 方法 public void setName(String name) { this.name = name; } public String getName() { return name; } public void setAge(int age) { this.age = age; } public int getAge() { return age; } public void setScore(int score) { this.score = score; } public int getScore() { return score; } // 类方法 public static void speak() { System.out.println("说中文..."); } }编写以上代码的测试类

以下是编写测试类 StudentTest 的代码： java public class StudentTest { public static void main(String[] args) { Student student1 = new Student(); student1.setName("Tom"); student1.setAge(18);...

public class Test{ public static void main(String [] args){ Student s = new Student("zhang", 23, 74); s.display(); s.setName("lisi"); s.display(); } } class Student{ private String name; private int age; private double grade; public Student(String name, int age, double grade){ this.name = name; this.age = age; this.grade = grade; } public String getName(){ } public void setName(String name){ } public void display(){ System.out.println("Name=" + name); } }补全代码

public Student(String name, int age, double grade) { this.name = name; this.age = age; this.grade = grade; } public String getName() { return name; } public void setName(String name) { ...

public class Student { private String name; private int id; private List<Book> borrowedBooks; private int count; public Student(String name, int id) { this.name = name; this.id = id; this.borrowedBooks = new ArrayList<>(); this.count = 0; } public void borrowBook(Book book) throws Exception { if (this.count >= 10) { throw new Exception("已经借阅了最大数量的书籍"); } this.borrowedBooks.add(book); this.count++; } public void returnBook(Book book) { this.borrowedBooks.remove(book); this.count--; }}public class Book { private String title; private String author; private String isbn; public Book(String title, String author, String isbn) { this.title = title; this.author = author; this.isbn = isbn; } // 省略 getter 和 setter 方法}

Student 类有一个私有的字符串类型的 name 属性，一个整型的 id 属性，一个 List<Book> 类型的 borrowedBooks 属性以及一个整型的 count 属性。该类定义了一个构造方法，用于初始化这些属性。该类还定义了 ...

逐行解释下面代码：package sec02; import java.io.; import java.util.; class Student implements Serializable { private String name; private int id; private int chineseScore; private int mathScore; private int englishScore; public Student(String name, int id) { this.name = name; this.id = id; } public void setChineseScore(int score) { this.chineseScore = score; } public void setMathScore(int score) { this.mathScore = score; } public void setEnglishScore(int score) { this.englishScore = score; } public String getName() { return name; } public int getId() { return id; } public int getChineseScore() { return chineseScore; } public int getMathScore() { return mathScore; } public int getEnglishScore() { return englishScore; } public String setName(String name) { return name; } } public class StudentSystem { private static final String FILE_NAME = "students.dat"; private static List<Student> students = new ArrayList<>(); public static void main(String[] args) { loadStudents(); Scanner scanner = new Scanner(System.in); while (true) { System.out.println("请选择操作："); System.out.println("1. 添加学生"); System.out.println("2. 查找学生"); System.out.println("3. 更新学生信息"); System.out.println("4. 删除学生"); System.out.println("5. 输入学生成绩"); System.out.println("6. 退出系统"); int choice = scanner.nextInt(); switch (choice) { case 1: addStudent();//添加 break; case 2: findStudent();//寻找 break; case 3: updateStudent();//更新 break; case 4: deleteStudent();//删除

public Student(String name, int id) { this.name = name; this.id = id; } public void setChineseScore(int score) { this.chineseScore = score; } public void setMathScore(int score) { this....

#include<iostream> #include<string> using namespace std; class Student { public: Student(int n,string nam) { num=n; name=nam; } void display() { cout<<"num:"<<num<<endl; cout<<"name:"<<name<<endl; } protected: int num; string name; }; class Student1:public Student { public: Student1(int n,string name,int a):Student(n,nam) { age=a; } void show() { display(); cout<<"age:"<<age<<endl; } private: int age; }; class Student2:public Student1 { public: Student2(int n,string name,int a,int s):Student1(n,nam,a) { sex=s; } void show_all() { show(); cout<<"score:"<<score<<endl; } private: int score; }; int main() { Student2 stud(10010,"zaiweitao",17,89); stud.show_all(); return 0; }哪里错了？

Student1(int n, string name, int a) : Student(n, name) { age = a; } 同样，在派生类 Student2 的构造函数中，应该将参数 name 改为 nam 或 name，并且要在构造函数中初始化 score，否则会有编译...

相关推荐

java代码-student

StudentClass.rar_Java编程_Java_

/ 创建一个名为 Student 的公开类 public class Student { private String name; private int age;

public class Student { private String name; private int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; }}

class Student { private String name; private int number; private Map<String,Integer>hashMap; public Student(String name,int number) { this.name=name; this.number=number; hashMap=new HashMap<>(1000); } }

public class Student { private String name; private int age; public Student(String name, int age) { this.name = name; this.age = age; } public void speak() { System.out.println("My name is " + name + ", and I am " + age + " years old."); } }这段代码要创建几个类

class Student { private: int id; string name; int year; string major; public: Student() { } Student(int id, string name, int year, string major) { this->id = id; this->name = name; this->year = year; this->major = major; } // getter and setter methods };

最新推荐

[net毕业设计]ASP.NET基于BS结构的实验室预约模型系统（源代码+论文）.zip

MATLAB实现小波阈值去噪：Visushrink硬软算法对比

管理建模和仿真的文件

【交互特征的影响】：分类问题中的深入探讨，如何正确应用交互特征

c语言从链式队列 中获取头部元素并返回其状态的函数怎么写

易语言实现画板图像缩放功能教程

"互动学习：行动中的多样性与论文攻读经历"

【交互特征：优化与调试的艺术】：实战技巧，提升回归模型与分类模型的性能

用IDEA写一个高速收费系统框架附带代码

大模型推荐系统: 优化算法与模型压缩技术

c语言从链式队列中获取头部元素并返回其状态的函数怎么写