需要把经常用到的常量抽象到一个类里面管理

如:

aaarticlea/png;base64,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" alt="" />

package com.test.common;

public class Constant {

    /*
* SYSTEM DEFAULT DATA FORMATS
*/
public final static String DEFAULT_DATE_FORMAT = "yyyy-MM-dd"; /*
* 每页显示的条数
*/
public final static int UNIT_CNT = 10; }

抽象常量class的更多相关文章

  1. java抽象、接口 和final

    抽象 一.抽象类:不知道是具体什么东西的类. abstract class 类名 1.抽象类不能直接new出来. 2.抽象类可以没有抽象方法. public abstract class USB { ...

  2. java关键字extends(继承)、Supe(父类引用空间)、 This(方法调用者对象)、Instanceof(实例类型-判断对象是否属于某个类)、final(最终)、abstract(抽象) 、interface(接口)0

    java 继承使用关键字extends   继承的作用:减少代码量,优化代码 继承的使用注意点: 1子类不能继承父类的私有变量 2.子类不能继承父类的构造方法 3.子类在调用自己的构造方法时 会默认调 ...

  3. 设计模式(3)--抽象工厂模式(Absrtact Factory Pattern)

    定义 抽象工厂模式的实质就是提供接口来创建一系列相关或独立的对象而不指定这些对象的具体类. 理解 在软件系统中,经常面临着"一系列相互依赖的对象"的创建工作:同时由于需求的变化,往 ...

  4. SICP— 第一章 构造过程抽象

    SICP  Structure And Interpretation Of Computer Programs 中文第2版 分两部分  S 和 I 第一章 构造过程抽象 1,程序设计的基本元素 2,过 ...

  5. SpringMVC源码剖析(一)- 从抽象和接口说起

    SpringMVC作为Struts2之后异军突起的一个表现层框架,正越来越流行,相信javaee的开发者们就算没使用过SpringMVC,也应该对其略有耳闻.我试图通过对SpringMVC的设计思想和 ...

  6. Java—继承、封装、抽象、多态

    类.对象和包 1) 面向对象编程(Object Oriented Programming ,简称 OOP):20世纪70年代以后开始流行. 2) 结构化编程与面向对象编程的区别: A. 在结构化编程中 ...

  7. iOS 抽象工厂模式

    iOS 抽象工厂模式 什么是抽象工厂模式 简单了解一下 按照惯例,我们先了解一下什么是抽象工厂模式.抽象工厂模式和工厂方法模式很相似,但是抽象工厂模式将抽象发挥的更加极致,是三种工厂模式中最抽象的一种 ...

  8. java 8-5 抽象

    1. 抽象类的概述: 动物不应该定义为具体的东西,而且动物中的吃,睡等也不应该是具体的. 我们把一个不是具体的功能称为抽象的功能,而一个类中如果有抽象的功能,该类必须是抽象类. 抽象类的特点: A:抽 ...

  9. PHP面向对象三大特点学习(充分理解抽象、封装、继承、多态)

    PHP面向对象三大特点学习 学习目标:充分理解抽象.封装.继承.多态   面象对向的三大特点:封装性.继承性.多态性 首先简单理解一下抽象:我们在前面定义一个类的时候,实际上就是把一类事物共有的属性和 ...

随机推荐

  1. mysql 入门 1

    连接mysql服务器 mysql -h localhost -u username -ppasswd 1.查看服务器存在的库 show databases; 2.创建数据库 create databa ...

  2. NLTK vs SKLearn vs Gensim vs TextBlob vs spaCy

    Generally, NLTK is used primarily for general NLP tasks (tokenization, POS tagging, parsing, etc.) S ...

  3. error:未定义的引用

    用qtcreator编程的话,先在.pro文件中这样写: INCLUDEPATH += \ /usr/local/include/ LIBS += \ -L"/usr/local/lib&q ...

  4. java集合框架之ArrayList与LinkedList的区别

    参考http://how2j.cn/k/collection/collection-arraylist-vs-linkedlist/690.html#nowhere ArrayList和LinkedL ...

  5. Laravel中的路由管理

    //路由中输出视图Route::get('/', function () { return view('welcome');}); //get路由请求Route::get('get',function ...

  6. AndroidStudio关联GitHub

    1.前提: 1.已有github账号和密码 github官方网站:https://github.com/ 2.下载了git客户端 客户端下载地址:http://pan.baidu.com/s/1slV ...

  7. iOS 中使用 MJExtension 遇到 关键字(id) 怎么办

    MJExtension 是个人比较喜欢用的json 转model 的软件,当遇到系统关键字时就会出现崩溃,解决方式如下 1.建立Modle 解析类,服务返回数据中带有id,这个时候用字典转Mode(m ...

  8. 浅谈C# String对象

    本文介绍C#中的string是一个引用类型,C# String对象是存放在堆上,而不是堆栈上的,因此,当把一个字符串变量赋给另一个字符串时,会得到对内存中同一个字符串的两个引用. AD:WOT2015 ...

  9. DataGridView DataSource 如何实现排序

    将数据绑定在下面的类中就可以实现排序 public class SortableBindingList<T> : BindingList<T> { private ArrayL ...

  10. IT兄弟连 JavaWeb教程 Servlet会话跟踪 Session常用方法

    ●  public Object getAttribute(String name) 该方法返回在该session会话中具有指定名称的对象,如果没有指定名称的对象,则返回null. ●  public ...