free java profiler

from:http://emma.sourceforge.net/EMMA:A free Java Code Coverage tool Code coverage for FREE:A basic freedom? Until recently, the world's Java development had been plagued by an absurd Discrepancy:java developers had excellent fre e IDEs, free compilers,

WellYesKnownSince the start of the Java trade Unionhas been working to share someJava Technology SummaryLearning methods: Wait, wait.SoSince I made this public number,My phone hasn't been quiet for a day.BecauseEvery day a lot of fans ask me"Hello, how to learn Java""Hello, I can't get the service object inside this timer""Hello, file upload how to do""There is no video tutorial "......SoI recently compiled

-oriented network communication based on TCP protocol Java Learning Series (17) Java Object-oriented development chat tool Java Learning Series (18) Java Object-oriented network communication based on UDP protocol Java Learning Series (19)

Java programmer's favorite 11 free IDE editors (1) Java developers need to spend a lot of time in Java code and use different IDES (Intergrated Development Environment) to develop Java code, so next I will introduce 11 different ides, which provide a variety of functions, s

Import Java.util.Scanner;public class Test2 {/** Free Fall Displacement formula: s = * * g * T2s---displacement (m)T---time (s)G---gravitational acceleration (9.8m/s)According to the input time, the displacement of how many meters*/public static void Main (string[] args){Double g = 9.8;Double S;int t;Scanner Scanner = new Scanner (system.in);System.out.println ("Please enter Time:");T=scanner.nextint ();s = 0.5 * G*T*T;//1/2 input is wrongSystem.out.p

The last time I attended the job fair, I saw that many large companies demanded to be proficient in Java. Unfortunately, I learned. Net in my freshman year, while Java was only available in the third year, and I only gave some basic knowledge. Sometimes I wonder if it's really wrong to select. Net? Java does have many advantages over. net. Open-source, cross-plat

An online 2k game, every second is scary. The traditional hibernate direct plug-in library is basically not feasible. I'm going to deduce a lock-free database operation in one step.1. How to lock in concurrency.A very simple idea to convert concurrency into a single thread. Java's disruptor is a good example. If you use the Java Concurrentcollection class to do, the principle is to start a thread, run a que

I remember that last year, at the Sun Java Technology Conference, I heard Sun's official staff declare that Sun's ide will be "is free" in the near future "! His exaggerated expression made everyone laugh. A year later, sun received a message today. Sun has started to provide free Java Studio creator and

operations, the first set-up, that is, the so-called Tombstone , and the addition of the node to echo, after the mark is over, after the second CAs execution, the addition to this node is unsuccessfulThis CAS failure indicates that there are additional threads to delete operations or CAS before there are add operations to Cur's next (succ change), which returns to try againThe second time the original point to cur pred.next point to succ, physical deletion , where SUCC has not changed, because

SAP recently criticized Oracle, saying that Oracle has restrained Sun's development and made sun free and Java free. "Mr. Ellison and mr. Schwartz, open this gate! Gentlemen, tear down this wall! Let Java be free! " I'm curious about this article.ArticleThe author, why

next to the date, while others need to display the number of days (for example, "No. 241 Day"). The timeline can be flexibly designed. Its model can be replaced, its display can be replaced, and even the entire timeline can be replaced with custom subclasses. Calendar model: The calendar model provides data for weekends, holidays, or any special time range in the Gantt chart. The entry for the calendar model is displayed at the height of the entire layer container (right hand side

timeline. Some need to show the number of weeks next to the date, while others need to display the number of days (for example, "No. 241 Day"). The timeline can be flexibly designed. Its model can be replaced, its display can be replaced, and even the entire timeline can be replaced with custom subclasses. Calendar model: The calendar model provides data for weekends, holidays, or any special time range in the Gantt chart. The entry for the calendar model is displayed at the heigh

Open-source free java CMS and javacms Project address:Http://www.freeteam.cn/ Generate column list data Extract the list of columns that can be accessed by mobile apps on the current management site and generate json data to the/site directory/mobile/channels.html page. Click Generate column list data from the Management menu on the left to enter. Click OK. Open-source

　　 OpenShift is Red Hat's cloud development platform as a service (PaaS). The free and open source cloud computing platform enables developers to create, test, and run their applications, and deploy them to the cloud. OpenShift supports a wide range of programming languages and frameworks, such as Java,ruby and PHP. It also offers a variety of integrated development tools such as Eclipse Integration

Environment configuration for java JDK and Tomcat (Installation-free version) 1. After JDK is installed, configure the environment. Right-click the computer and choose Properties> advanced system Settings> enter environment variable 2. in the system variables, create a project variable named JAVA_HOME C: \ Program Files \ Java \ jdk1.7.0 (JDK installation path, o

Project Address: http://www.freeteam.cn/ inside the station letter 1.1.1 Letter From the admin menu on the left, click Write to enter. Enter the recipient, title, content and click the Send button. 1.1.2 Inbox From the admin menu on the left, click Inbox to enter. View the message in the station Click on the title to view the details of the station letter. Delete the message in the station Select the message in the station and click the Delete button to complete the delete operation. In

Project Address: http://www.freeteam.cn/Inside the station letter1.1.1 LetterFrom the admin menu on the left, click Write to enter.Enter the recipient, title, content and click the Send button.1.1.2 InboxFrom the admin menu on the left, click Inbox to enter.View the message in the stationClick on the title to view the details of the station letter.Delete the message in the stationSelect the message in the station and click the Delete button to complete the delete operation.In order to prevent mi

Project Address: http://www.freeteam.cn/Member Group ManagementThe membership group is divided into two categories, one is the experience member group and the other is the special member group.The members of the experience member group will change their own initiative according to experience, and special member groups will not change themselves voluntarily, they need to be manually set by the administrator.1. Member Group ManagementFrom the left side admin menu Click on the Membership group to e

Project Address: http://www.freeteam.cn/ My collection From the admin menu on the left, click My favourites to enter. Here you can see all the favorites for the currently logged in member. View Favorites Click on the title to view your favorite content. Delete a collection Select Favorites and click the Delete button to complete the delete operation. In order to prevent misoperation, the system will prompt the user whether to delete, click "OK" to complete the delete operation. Open source

Project Address: http://www.freeteam.cn/ My message From the admin menu on the left, click on my message to enter. Here you can view all the message records of the currently logged in member. View Message Click the message title to view the message details. Delete message Select the message and click the Delete button to complete the delete operation. In order to prevent misoperation, the system will prompt the user whether to delete, click "OK" to complete the delete operation. Open sourc