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public class Teacher {
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private String name;
private String jobNum;
private String post;
private String branch;
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @return the jobNum
*/
public String getJobNum() {
return jobNum;
}
/**
* @return the post
*/
public String getPost() {
return post;
}
/**
* @return the branch
*/
public String getBranch() {
return branch;
}
public String showTeacher() {
return "name:" + name + ",job number:" + jobNum + ",position:" + post
+ ",branch:" + branch;
}
}
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package com.tz.test;
public class Class_Student {
private String class_name;//名称
private int galleryful;//容纳人数
private Object[] student;//学生对象数组
//有参构造
public Class_Student (String class_name, int galleryful){
//代码逻辑处理
}
public String getClass_name() {
return class_name;
}
public void setClass_name(String class_name) {
this.class_name = class_name;
}
public int getGalleryful() {
return galleryful;
}
public void setGalleryful(int galleryful) {
this.galleryful = galleryful;
}
public Object[] getStudent() {
return student;
}
public void setStudent(Object[] student) {
this.student = student;
}
}
public class B
public static void main(String[] args)
SetTeacher set = new HashSetTeacher()
IteratorTeacher iterator = set.iterator()
while (iterator.hasNext())
System.out.println
class Teacher
private int id
public Teacher()
public Teacher(int id, String name, int age, boolean sex)
this.sex = sex
HashSet类
实现了Set接口，由哈希表（实际上是一个HashMap实例）支持。它不保证Set的迭代顺序，特别是它不保证该顺序持久不变，此类允许使用null元素。添加到由HashSet类实现的Set集合中的对象。需要重新实现equal（）方法。
从而保证插入集合中对象的标识的唯一性。HashSet类实现了Set接口，由哈希表（实际上是一个HashMap实例）支持。它不保证Set的迭代顺序，特别是它不保证该顺序持久不变。
public class Teacher extends Person {
String department;
String major;
public Teacher(String name,int age,String department,String major) {
super.name = name;
super.age = age;
this.department = department;
this.major = major;
}
public String getDepartment() {
return this.department;
}
public String getMajor() {
return this.major;
}
public void setDepartment(String s) {
this.department = s;
}
public void setMajor(String s) {
this.major = s;
}
public String toString() {
return "name : " + this.name + " age : " + this.name + " deparetment :"
+ this.department + " major : " + this.major;
}
}
class Person {
String name;
int age;
public Person() {
}
}
public class Ex5 {
public static void main(String[] agrs) {
Teacher zhangsan = new Teacher("zhangsan",20,"computer","software");
Teacher lisi = new Teacher("lisi",20,"computer","software");
//set lisi's age;
lisi.age = zhangsan.age * 5 / 6;
System.out.println(zhangsan.age - lisi.age);
System.out.println("zhangsan's info" + zhangsan.toString() +
"\nlisi's info" + lisi.toString());
}
}
**************output**********************
D:\vim_directoryjava Ex5
4
zhangsan's infoname : zhangsan age : zhangsan deparetment :computer major : software
lisi's infoname : lisi age : lisi deparetment :computer major : software
//测试成功
定义教师类，public class TeacherInfo，里面添加变量，参考写法，private string teacherName；后面再封装一下，set和get方法，重写tostring方法，输出教师类对象信息就行了
public class Teacher {
private String code;
private String name;
public Teacher() {
}
public Teacher(String code, String name) {
this.code = code;
this.name = name;
}
@Override
public String toString() {
return "Teacher{" +
"code='" + code + '\'' +
", name='" + name + '\'' +
'}';
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public static void main(String [] args) {
Teacher teacher = new Teacher("2000567","王武");
System.out.println(teacher.toString());
}
}