标准JavaBean

$$标准JavaBean$$

解释

其实标准$JavaBean$就是实体类，显示生活中存在的实体类，也可以理解为一种约束格式。它的对象可以在程序中封装数据。

书写格式

①. 内部成员变量使用private进行修饰，提高安全性。
②. 必须有配套的getter and setter方法。
③. 必须有一个无参数的构造器，有参数的可以没有。

样例

public class User {//成员变量全部私有化private double height;private String name;private double salary;private String address;private String phone;public User() {}//❗在Idea中右键点击generate可以自动生成有参无参构造器和相应的getter与setterpublic User(double height, String name, double salary, String address, String phone) {this.height = height;this.name = name;this.salary = salary;this.address = address;this.phone = phone;}public double getHeight() {return height;}public void setHeight(double height) {this.height = height;}public String getName() {return name;}public void setName(String name) {this.name = name;}public double getSalary() {return salary;}public void setSalary(double salary) {this.salary = salary;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}
}