java programmer resume

---- The author of this book is talking to himself. Note: This article was written before publication ......The publication of the book "Java programmer, work at that point" is really a wave of twists and turns, but in any case this book is about to be published. Honestly, I am not a real professional author. Of course, some people call this professional Author "Writer ", maybe it's because I don't "Sit at

Dark Horse programmer--java Basic---IO (bottom)------I. OverviewIn addition to the basic byte stream and character stream, Java provides classes such as the file class, properties class, print stream, sequence flow and input and output, which can help us to better handle the information. They are briefly described below.　First, the text1 , File class the file cla

-----------Android Training , Java training , Java Learning Technology blog, look forward to communicating with you! ------------First: Dark Horse programmer _ Bi Xiangdong _java Basic Video tutorial 21st day -01-io Stream (serialization of objects)One, the concept of object serialization: storing objects in the heap memory on the hard disk, preserving the data i

of the bug, FindBugs divides the bug into four levels: related, disturbing, scary, and most frightening. In addition to the graphical user interface, FindBugs also provides a command line interface, ant tasks, and Eclipse plugins.Seven, VisualVMThe VISUALVM included in the JDK is a tool for monitoring and reviewing the performance of Java applications. VISUALVM detects and attaches importance to the active JVM instance to retrieve diagnostic informat

, making it unnecessary for Java programmers to consider memory management when writing programs. Because there is a garbage collection mechanism, objects in Java no longer have the concept of scope, only references to objects have scope. Garbage collection can effectively prevent memory leaks and effectively use memory that can be used. The garbage collector is usually run as a separate low-level thread, u

Black Horse Programmer--java Base-Exception------Java Training, Android training, iOS training,. NET training, look forward to communicating with you! -------Exceptionis not normal. Abnormal conditions that occur when the program is running. is actually the problem that appears in the program. This problem is described in terms of object-oriented thinking and enc

absrtact: debugging not only can find the application flaw, but also can solve the flaw. For Java programmers, they not only have to learn how to develop decent programs in eclipse, but they also need to learn how to debug programs. This article describes the Java programmer must know the 10 debugging skills, to ensure that you benefit!Debugging can help identify

subclasses)V. Finally block of code:code that must be executed, usually to close the resource Special statement: system.exit (0);//System exit, JVM end Remember that catch is used to handle exceptions, and if no catch means that the exception has not been processed, and if the exception is a detection-time exception, you must declareVi. the embodiment of the exception in the child parent category coverage:When a subclass overrides a parent class, if the method of the parent class throws an exce

(0); //Exit the JVM, only this case finally does not execute. When the exception occurs, when the child parent class overwrites, there are some new features:1: When a subclass overrides a method of the parent class, if the method of the parent class throws an exception, the child class's method either throws an exception or throws the parent class exception or subclass of the exception, and cannot throw other exceptions.2: If the parent throws more than one exception, the child class can only t

.　　Some data suggest, when need to synchronize, use Hashtable, converse with HashMap. However, because HashMap can be synchronized when needed, HashMap functions more than Hashtable, and it is not based on a stale class, it is argued that hashmap in all cases takes precedence over Hashtable.Second, for the Java Collection frameworkThe comparison between them: is ordered Whether elements are all

JSP applications. When the term "session" is used, it is actually referring to the session in Hibernate, and later the Httpsesion object is called the user session.3.SessionFactory interfaceThe Sessionfactory interface is responsible for initializing hibernate. It acts as a proxy for the data storage source and is responsible for creating session objects. The factory model is used here. It is important to note that Sessionfactory is not lightweight, because in general, a project typically requi

! Our value will also be there to ascend or eliminate! Boy, Cheer up!The final advice: learn a variety of technologies when to the official website of the corresponding technology (Baidu a bit to know!). , buy professional publishers and professionals out of the book, English is a mark, but also a network of different levels of programmers, my English is relatively poor, but I continue to learn, I believe I can take it, recently I learn the technology is also more like to go to the official webs

------Java Training, Android training, iOS training,. NET training, look forward to communicating with you! -------First, the introduction of JavaThe Java programming language is a simple, object-oriented, distributed, explanatory, robust, secure and system-independent, portable, high-performance, multi-threaded, and dynamic language. Ii. installation and configuration of JDK 　　To learn

() method invokes the run () method, in fact the start () method does not directly call the Run method. Before JDK1.5 the start () method is a local method, How it ends up calling the Run method is not what a Java programmer can understand. In JDK1.5, the original local start () method is replaced by Start0 (), and another pure Java start () calls the Local meth