Java Javabean（实体类）的意义

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package com.soto.collection2;import java.text.DateFormat;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Date;public class Employee {    //Javabean（只有属性和ste ,get方法，最简单的类）， 实体类private int ID;       //属性一般私有     set/get方法//构造器public Employee(int iD, String name, int salary, String department, String hireDate) {super();ID = iD;this.name = name;this.salary = salary;this.department = department;DateFormat formate = new SimpleDateFormat("yyyy-mm");try {this.hireDate = formate.parse(hireDate);} catch (ParseException e) {e.printStackTrace();}}public int getID() {return ID;}public void setID(int iD) {ID = iD;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getSalary() {return salary;}public void setSalary(int salary) {this.salary = salary;}public String getDepartment() {return department;}public void setDepartment(String department) {this.department = department;}public Date getHireDate() {return hireDate;}public void setHireDate(Date hireDate) {this.hireDate = hireDate;}private String name;private int salary;private String department;private Date hireDate;}

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