Programmer Group

J2EE knowledge summary 1, DTD 1. Why DTD? 2. What is DTD? 3. Where is DTD used? 4. How to use DTD? 5. Example explanation 2, XML 1. Why XML? 2. What is XML? 3. Where is XML used? 4. How is XML used (XML modeling)? 5. Example explanation 3, Reflex 1. Why reflection? 2. What is reflex? 3. Where is ...

Parallel coordinate system (parallel) is a kind of commonly used chart to visualize high-dimensional data. Parallel coordinate system has a good mathematical basis, and its projective geometry interpretation and dual characteristics make it suitable for visual data analysis. Article catalog 1. Drawin ...

I've always envied others for making wheels and open source projects for others to use. I also want to do this. I can learn little by myself. This time, I will upload my own writing tools to Maven's central warehouse. The detailed step-by-step tutorial is shown as follows: Notice the Maven addresses at first: Work order management: https://is ...

Because JAVA is an interpreted language, it is easy to decompile. Maybe many companies will add License verification steps to their products before they leave the factory. Is License verification really safe? NO, people with a little JAVA experience will know to decompile your war package or jar ...

1: Basic concepts of spring 1) Struts 2 is web framework, hibernate is orm framework 2) spring is a container framework, which creates beans and maintains the relationship between beans 3) Spring can manage the web layer, persistence layer, business layer, dao layer, spring can configure the components of each layer, and maintain the relati ...

catalog introduction AOP overview AOP terminology Understanding of hands through practice (simple calculator) introduction What is AOP? (interview question), simply answering face-to-face programming can't satisfy the interviewer, it's better to combine your own understanding. AOP overview ...

1, General knowledge of software development (1) Project development process 1. Project approval Project implementability analysis: (a project) 100W project, the development cycle is expected to be 6 months, 10 people are needed, and the operation (human) cost is 2W / person The product manager st ...

Introduction There must be a lot of little friends who like to travel. It is better to go abroad for a circle. Before traveling, everyone will make all kinds of strategies on eating, wearing, staying, traveling and playing routes, and then go out with full expectation.. Imagine Travel _Before departure, your imaginary destination might have be ...

Preface Gesture recognition is very common in Android development applications Today, carson will explain in detail the Android Gesture Recognition class: the use of the GestureDetector class.(with examples) Catalog brief introduction Next, I'll take an ex amp le and describe in detail the u ...

Filter filter What is a Filter Use of Filter Filter lifecycle FilterConfig class FilterChain filter chain Interception path of Filter What is a Filter 1.Filter filter is one of the three components of javaWeb. Servlet program, Listener listener, filter filter 2. It is an interface 3. Function: f ...