J2EE: A New Java developer

Java is used in several projects recently, so I started to understand Java more systematically.

 

This articleArticleI feel a little bit about J2EE development in the short term.

 

I have always been proudProgramPersonnel (although my own accomplishments in C ++ may not be profound), there has always been a "King style" of C ++ programmers ", it is worth boasting that C ++ can be done in terms of efficiency, design, and syntax complexity. Some web technologies are even impetuous ".

 

In fact, when I entered the Java Development World, I had a lot of different feelings. Indeed, practice is the only criterion for testing truth.

 

Java is similar to. Net in terms of syntax. Since I have been developing C # For a while, it is still quick to get started. We will not mention the Garbage Collector, syntax, and reflection language. Focus on the feelings in project development. I use spring + hibernate + JUnit for Development (Classic web development environment) and IDE for myeclipse.

 

First, let's talk about myeclipse. The first feeling is complicated, the second is not used to, and the third feeling is awesome. Because it is powerful and complex, its plug-ins are very powerful, including various syntax highlighting,CodeLinks and even SVN plug-ins are user-friendly and mature.

 

In J2EE, various frameworks are mature, and the highest degree of reuse of existing code is the spirit of Java development. This is also Java Open SourceCommunitySignificant contributions to the software industry. (C ++ may also exist, but the C ++ projects I have come into contact with are relatively closed or not so high-level applications, therefore, large-scale code reuse is relatively small .) In Web applications, for example, the search engine development kit Lucene, MVC Framework spring, and log log4j ......

 

In addition, we will talk about interface-oriented and plane-oriented programming.

There is no doubt that the concept of interfaces is a breakthrough in object-oriented thinking. When all project members are forced to program in interface-oriented mode, in fact, the system design or module design has been decoupled once. At the same time, each project member can focus more on their own business and improve the degree of code encapsulation and reuse. In addition, the unit test can be carried out because of the clear interface.

Of course, C ++ can also implement interface functions (all functions are the basis classes of pure virtual functions), but the Java design layer is more advanced.

 

So I feel that project development is more like "Project Development ...... This sentence may be self-contradictory, but it may feel the same way when I transform from C ++ to Java team project development. I am not comparing or criticizing the differences between C ++ and Java. I can also understand the development features of C ++ projects. In fact, I prefer a lower layer and a higher pursuit of efficiency.

 

So my conclusion is that Java development is indeed highly efficient, and from the perspective of teamwork, some existing open-source frameworks, software, or technology can play their own role. In the future, you can refer to these convenient designs or concepts when programming in any language or designing.