java debugging practice

I will share 10 debugging skills that Java programmers should know. It can help identify and solve application defects. In this article, the author will use Eclipse, a common development tool, to debug Java applications. However, the debugging methods described here are basically generic and also applicable to NetBeans

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[Practical Java high concurrency programming design 4] Arrays can also be unlocked: AtomicIntegerArray, java concurrent programming practice pdf In addition to providing basic data types, JDK also prepares arrays and other composite structures for us. The available atomic arrays include AtomicIntegerArray, AtomicLongArray, and AtomicReferenceArray, which respecti

　　Debugging can not only find the application defects, but also solve the defects. 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

following parameters are not changed, if you use the IntelliJ remote debugging configuration, it will default to give these two parameters, let you put in the server JVM parameters.Take a look at the official documentation below:-xdebug-XdebugEnables debugging capabilities in the JVM which is used by the Java Virtual machine Tools Interface (JVMTI). JVMTI is a l

) {System.out.println ("Less than 3 parameters");return; The String result =""; for(String S:args) {result + = s +" "; } System.out.println ("Parameters:"+ result); }}/** * Output: * parameter: Caroline Wendy girl *///:~11//:allthecolorsoftherainbow/** * Coded style test * Created by C.l.wang on 15/7/6. * * Public class rainbowtest { Public Static void Main(string[] args) {Allthecoloroftherainbow ATC =NewAllthecoloroftherainbow (); Atc.changethehusofthecolor ( -); System.out.println ("Thehu

Java generic learning and practice (1), java genericIntroduction After JDK1.5, generic models were introduced, which was hard to understand at the beginning. After learning them slowly, there are some gains. In conclusion, they can not only deepen your understanding, but also help others. Due to my limited level, it is inevitable that something is wrong. please c

technologies, there is no need to download plugins or small programs.Ajax has a lot of merit, and it is these strengths that reflect its shortcomings (of course, the shortcomings can be overcome).Disadvantages:1. Security issues2. Support for search engines is relatively weak.3. The exception handling mechanism of the program is broken.4. The original intention of URL and resource location is violated.Actual combata simple, but useful example: TheJava version asynchronously verifies that userna

An object that cannot be modified after the creation state is called an immutable object . Immutable objects are inherently thread-safe. Their constants (fields) are created in the constructor. Since their state cannot be modified, these constants will never change. immutable objects are always thread-safe . An object is immutable only if it satisfies the following state; Its state cannot be modified after it has been created; All fields are final type; It is created correc

Most of the recommendations for using exceptions in the Java language suggest that check-type exceptions should be used preferentially in any case where the exception is believed to be captured. Language design (the compiler forces you to list all check-type exceptions that may be thrown in the method signature), as well as early writings on styles and usages, support this recommendation. Recently, several prominent authors have come to believe that u

Debug Android Java source code The back garden of the straw hat-Neo Previously written: This article mainly focuses on debugging the Java source code. It should be said that it is the source code after system_process. This is a powerful tool for debugging and modifying the frameworks layer, but why is it still analyzed

Debugging not only finds application defects, but also solves them. For Java programmers, they not only need to learn how to develop decent programs in Eclipse, but also how to debug programs. This article introduces 10 debugging skills required by Java programmers, which will benefit you a lot! Before you start, we r

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

Debugging can not only find the application defects, but also solve the defects. 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 yo

It can help identify and solve application defects. In this article, the author will use Eclipse, a common development tool, to debug Java applications. However, the debugging methods described here are basically generic and also applicable to NetBeans IDE. We will focus on the runtime. Before you start, we recommend you read this article Eclipse shortcuts, which will bring you a lot of convenience. This ar

it and use the right-click menu or Ctrl + U (execute) or Ctrl + Shift + I (check ). -Navigation: drop to frame I think anyone knows "step into", "Step over", and "Step return". These are the basic navigation functions for debugging. I would like to provide two advanced navigation methods that I like very much. The first is "drop to frame". With this feature, you can roll back in time. You can roll back to a frame in a running

portlist = commp ortidentifier. getportidentifiers ();Outputstream;/* Serial port of RS-232 */SerialPort;Thread readthread; Byte data [] = new byte [10240];/* Set the flag to determine whether to disable the serial port */Boolean mark;Public commf (){Super ("Java serial port debugging assistant ");Software Description = new jbutton ("debugging ");Xs = new jlabel