1.按以下描述设计类（第四章 类和对象）
学生类
属性：姓名，性别，年龄，登录名，密码，学号，年级，专业
方法：构造函数（空构造函数和全构造函数），所有属性的set,get方法，打印全部信息
老师类
属性：姓名，性别，年龄，登录名，密码，工号，级别
方法：构造函数（空构造函数和全构造函数），所有属性的set,get方法，打印全部信息
测试类
功能：完成学生类和老师类的测试
2.按以下描述设计类（第五章 继承）
人类
属性：姓名，性别，年龄，登录名，密码
方法：构造函数（空构造函数和全构造函数），所有属性的set,get方法，打印全部信息
学生类（继承人类）
属性：学号，年级，专业
方法：构造函数（空构造函数和全构造函数），所有属性的set,get方法，打印全部信息
老师类（继承人类）
属性：工号，级别
方法：构造函数（空构造函数和全构造函数），所有属性的set,get方法，打印全部信息
测试类
功能：完成学生类和老师类的测试
3.按以下描述设计类（第五章 接口）
登录接口
方法：登录方法
学生登录类
方法：实现登录方法
教师登录类
方法：实现登录方法
第一题：
class Student
{
private String name; // 姓名
private char sex; // 性别
private int age; // 年龄
private String account; // 登录名
private String password; // 密码
private String studentNo; // 学号
private int grade; // 年级
private String major; // 专业
public Student() {
}
public Student(String name, char sex, int age, String account, String password, String studentNo, int grade, String major) {
this.name = name;
this.sex = sex;
this.age = age;
this.account = account;
this.password = password;
this.studentNo = studentNo;
this.grade = grade;
this.major = major;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return this.name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return this.age;
}
public void setSex(char sex) {
this.sex = sex;
}
public char getSex() {
return this.sex;
}
public void setAccount(String account) {
this.account = account;
}
public String getAccount() {
return this.account;
}
public void setPassword(String password) {
this.password = password;
}
public String getPassword() {
return this.password;
}
public void setStudentNo(String studentNo) {
this.studentNo = studentNo;
}
public String getStudentNo() {
return this.studentNo;
}
public void setGrade(int grade) {
this.grade = grade;
}
public int getGrade() {
return this.grade;
}
public void setMajor(String major) {
this.major = major;
}
public String getMajor() {
return this.major;
}
public void printInfo() {
System.out.println("============================[学生信息]");
System.out.println("姓名：" + this.name);
System.out.println("性别：" + this.sex);
System.out.println("年龄：" + this.age);
System.out.println("账号：" + this.account);
System.out.println("密码：" + this.password);
System.out.println("学号：" + this.studentNo);
System.out.println("年级：" + this.grade);
System.out.println("专业：" + this.major);
}
}
class Teacher
{
private String name; // 姓名
private char sex; // 性别
private int age; // 年龄
private String account; // 登录名
private String password; // 密码
private String workNo; // 工号
public Teacher() {
}
public Teacher(String name, char sex, int age, String account, String password, String workNo) {
this.name = name;
this.sex = sex;
this.age = age;
this.account = account;
this.password = password;
this.workNo = workNo;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return this.name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return this.age;
}
public void setSex(char sex) {
this.sex = sex;
}
public char getSex() {
return this.sex;
}
public void setAccount(String account) {
this.account = account;
}
public String getAccount() {
return this.account;
}
public void setPassword(String password) {
this.password = password;
}
public String getPassword() {
return this.password;
}
public void setWorkNo(String workNo) {
this.workNo = workNo;
}
public String getWorkNo() {
return this.workNo;
}
public void printInfo() {
System.out.println("============================[老师信息]");
System.out.println("姓名：" + this.name);
System.out.println("性别：" + this.sex);
System.out.println("年龄：" + this.age);
System.out.println("账号：" + this.account);
System.out.println("密码：" + this.password);
System.out.println("工号：" + this.workNo);
}
}
public class Test
{
public static void main(String[] args)
{
Student stu1 = new Student();
stu1.setName("小a");
stu1.setSex('男');
stu1.setAge(12);
stu1.setAccount("aaa");
stu1.setPassword("123456");
stu1.setStudentNo("2009001");
stu1.setGrade(2009);
stu1.setMajor("计算机科学与技术");
stu1.printInfo();
Student stu2 = new Student("小红", '女', 20, "test", "111111", "2009002", 2009, "计算机科学");
stu2.printInfo();
Teacher teacher1 = new Teacher();
teacher1.setName("林老师");
teacher1.setSex('男');
teacher1.setAge(40);
teacher1.setAccount("aaa");
teacher1.setPassword("123456");
teacher1.setWorkNo("32111");
teacher1.printInfo();
Teacher teacher2 = new Teacher("而老师", '女', 30, "test", "111111", "32154");
teacher2.printInfo();
}
}
太多了 你仿照的写第二个吧 给你自己一个学习的机会 呵呵
package test;
public class Student {
private String name;
private String sex;
private int age;
private String username;
private String password;
private String no;
private String grade;
private String speciality;
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;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getNo() {
return no;
}
public void setNo(String no) {
this.no = no;
}
public String getGrade() {
return grade;
}
public void setGrade(String grade) {
this.grade = grade;
}
public String getSpeciality() {
return speciality;
}
public void setSpeciality(String speciality) {
this.speciality = speciality;
}
@Override
public String toString() {
return "name :"+this.getName()+" age :"+this.getAge();
}
public static void main(String[] args) {
new Student().toString();
}
}