java debugging practice

itDuring the development process, because of the need to constantly modify the code, so during debugging, you can use dynamic loading mode, load user-defined class.Re-edit the Classpath.txt file to remove Dog.jar loading information.Run the following command in MATLAB:>> javaaddpath ('/home/your_username/documents/matlab_java/dog.jar ') >> d = javaobject (' Dog ', ' martin ') d = [Email protected] >> D.getname () ans = martin_1The experimental result

11.6 Debugging Tips 1) A less well-known but very effective technique is to put a main method in each class so that each class can be unit tested. This method can be preserved because the Java Virtual machine only calls the main method of the startup class. 2) Log agent, (logging proxy), through a subclass object, stealing the parent class's method call, and logging in it, the sample code is as follows:

Practice: Java Virtual Machine 2 "virtual machine working mode", Java Virtual Machine Today, I started to practice Java Virtual Machine II: "virtual machine working mode ". 5 Series in total One of the actual Java virtual machin

JPDA (Java Platform Debugger architecture) is the acronym for the Java Platform Debug architecture, and with the API provided by JPDA, developers can easily and flexibly build Java debugging applications. JPDA consists of three main components: Java Virtual Machine Tool Inte

Java breakpoint Debugging is a very basic skill in writing Java programs. Here's a simple Java breakpoint debugging feature. We added two breakpoints to the Findallguestbook () method, eclispce the point with the two green dots on the left is the breakpoint. Breakpoints Requ

Accelerate Java application development speed 2-accelerate project debugging startup speed and java application development In the previous article on improving the speed of Spring/Hibernate, we mainly used some techniques to increase the startup speed, or we could not do hot deployment or hot replacement of the class. Therefore, write another article on hot depl

platform. In this case, my solution is to test the project with the help of a mock object. Of course, sometimes running application modules by thread alone is not necessarily the best solution, especially if you need to look up some child issues in a run-time environment by debugging a project, and these methods are less practical. Eclipse provides us with the most useful features, called Remote debugging

Java Theory and Practice: a more flexible and scalable locking mechanism in JDK 5.0 Java Theory and Practice: an analysis of a flawed micro-benchmark Java Theory and Practice: Understanding jts― balance Security and performance

The features of Java robustness are as follows: Java compiles and runs programs to check for possible problems to prevent errors from occurring. The Java compiler can detect errors that many other languages run to discover. Java does not support pointer manipulation, which greatly reduces the likel

In the debug category I share my previous debugging summary, after a few months, after this period of reflection, I summed up the Java EE Application development of a general idea, for reference only, welcome to share the discussion. At present, most applications are browser/server mode, then development is divided into two parts, that is, the public said the foreground (assuming the use of rich client fra

Java Programming Practice: Determine whether the Java file name is correct, determine whether the mailbox format is correct, and count the number of times a character in a specified string appears1. Determine whether the Java file name is correct and whether the mailbox format is correct Function: determines whether th

I recently read Java Concurrent in Practice (java Concurrent programming Practice) and found that I have a superficial understanding of java threads, locks, and other mechanisms, and I have not learned fully enough. I plan to use this book to comprehensively learn about the

amount of effort. The answer is yes. By using the Java Debug Interface (JDI), developers can quickly develop custom thread Profiling tools that apply to them. Such tools are independent of the main program and can be highly customizable. In the following article, we will describe how to implement the tool. Know JPDA and JDI Starting with J2SE 1.3, Java started providing a set of architectures called the

Five debugging tools to improve Java development performance Java is a very powerful programming language and has been widely used since its publication. As the core language of Android, a very popular mobile platform, it has greatly promoted the development of the mobile communication industry. Therefore, it is certain that the demand for

Remote debugging is useful for application development. For example, a low-end machine developer that cannot host a development platform, or a debugger on a dedicated machine, such as a WEB server where a service cannot be interrupted. Other scenarios include Java applications that run on devices with low memory or CUP performance, such as mobile devices, or developers who want to separate applications from

Java generic learning and practice (4), java genericIntroduction The first three sections describe the common declarations and usage of generics. Generics can be declared on classes or on a single method, the two cases are summarized respectively. Next we will learn about generic extension. Extended the previous Runnable interface, Buick class, Ford class, Driver

A JSR 133, which has been active for nearly three years, recently released a public recommendation on how to fix the Java memory model (Java Memory models, JMM). There are several serious flaws in the original JMM, which leads to some incredibly difficult conceptual semantics that were originally considered simple, such as volatile, final, and synchronized. In this period of

Java log Design Practice (2), java log Several considerations during the design phaseUse Spring Log4jConfigListener to dynamically adjust the Log Level Add the following content to the corresponding web. xml location: Note] 1.Do not setLog4jConfigLocationSpecified// WEB-INF/classes/log4j. properties When log4jConfigLocation is specified as/WEB-INF/classes/l

[Java concurrent programming practice] ----- basic thread concepts, java ----- I have been learning Java concurrency for more than a month. I feel that I will forget some things after I have learned it for a while. I have made some notes but not the system. For a "system" with such a large

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