HappyCoding | A Java Utility Library for Happy Coding Projects | Application Framework library

 by   guoguibing Java Version: Current License: GPL-3.0

kandi X-RAY | HappyCoding Summary

kandi X-RAY | HappyCoding Summary

HappyCoding is a Java library typically used in Server, Application Framework applications. HappyCoding has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. However HappyCoding build file is not available. You can download it from GitHub.

A Java Utility Library for Happy Coding Projects.

            kandi-support Support

              HappyCoding has a low active ecosystem.
              It has 10 star(s) with 4 fork(s). There are 4 watchers for this library.
              It had no major release in the last 6 months.
              HappyCoding has no issues reported. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of HappyCoding is current.

            kandi-Quality Quality

              HappyCoding has 0 bugs and 0 code smells.

            kandi-Security Security

              HappyCoding has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              HappyCoding code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              HappyCoding is licensed under the GPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              HappyCoding releases are not available. You will need to build from source code and install.
              HappyCoding has no build file. You will be need to create the build yourself to build the component from source.
              HappyCoding saves you 1845 person hours of effort in developing the same functionality from scratch.
              It has 4072 lines of code, 444 functions and 44 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed HappyCoding and discovered the below as its top functions. This is intended to give you an instant insight into HappyCoding implemented functionality, and help decide if they suit your requirements.
            • Creates a test example
            • Binary sort order
            • Shell sort algorithm
            • Convert a double array to a string
            • Prints out the PDF of the distribution
            • Returns the inverse of a given delta
            • Returns the cumulative probability of a Gaussian distribution
            • Calculates the Pearson correlation coefficient between two vectors
            • Returns the mean value of the sample
            • Test e_ numbers
            • Calculates the amount of memory used by a method
            • Randomly selects a value from the Gamma Distribution distribution
            • Returns a set of values for a given key
            • Read the contents of a URL
            • Returns the mode value of the array
            • Calculates the CCC correlation coefficient
            • Runs test test
            • Calculates the Kendall rank correlation coefficient
            • Computes the area under an ROC curve
            • Returns a discrete value from a set of probabilities
            • Get the cosine similarity
            • Converts a list of messages to a section
            • Generate probabilities array
            • Calculates the Dice coefficient between two vectors
            • Calculates the Jaccard coefficient between two vectors
            • Sets default session properties
            Get all kandi verified functions for this library.

            HappyCoding Key Features

            No Key Features are available at this moment for HappyCoding.

            HappyCoding Examples and Code Snippets

            No Code Snippets are available at this moment for HappyCoding.

            Community Discussions


            Jetty 11 Doesn't Detect Servlets
            Asked 2021-Feb-25 at 12:35

            I have an example project here that uses Jetty to deploy a local server.

            I use the mvn package exec:java command to run a local server, and it works fine. It loads HTML files, as well as content from servlets. Here are the pertinent files:




            Answered 2021-Feb-25 at 12:35

            Jetty 11 is based on Jakarta Servlet 5.0, which is part of Jakarta EE 9.

            Jakarta EE 9 underwent the "big bang" change (their name, not mine) to namespace and packaging, there is no longer a javax.servlet.* it is now jakarta.servlet.*.

            There is literally nothing in Jetty 11 that looks for javax.servlet.*.

            Some quick history ...

            • Oracle owned Java EE.
            • Oracle produced Java EE 7.
            • Oracle decided it didn't want to create/manage EE anymore.
            • Oracle gave all of EE to the Eclipse Foundation.
            • Oracle did not grant the Eclipse Foundation the right to use "java" or "javax" in this new EE reality.
            • Eclipse Foundation renamed it to "Jakarta EE" for legal reasons.
            • Eclipse Foundation releases "Jakarta EE 8" which is essentially just "Java EE 7" renamed for legal reasons (no package namespace change yet)
            • Eclipse Foundation renamed all packaging from javax. to jakarta. for legal reasons.
            • Eclipse Foundation releases "Jakarta EE 9" which is essentially just "Jakarta EE 8" but with a namespace change (this is the "big bang" mentioned above)

            (be aware, I skimmed over a lot of other things that happened between these steps)

            javax.servlet.* is dead, long live jakarta.servlet.*.

            Jetty maintains the following versions (currently)

            • Jetty 9.4.x - Servlet 3.1 / Java EE 7 (javax.servlet)
            • Jetty 10.x - Servlet 4.0 / Jakarta EE 8 (javax.servlet)
            • Jetty 11.x - Servlet 5.0 / Jakarta EE 9 (jakarta.servlet)

            There will never be a backward compatibility feature to allow both javax.servlet and jakarta.servlet to coexist in a release of Jetty. (we've tried this, the complexity of the Servlet spec makes this untenable for the HttpSession, RequestDispatcher, Dynamic servlet/filter registrations, etc)

            The best we can hope for (and there are several projects started to do this, all alpha quality ATM) is some kind of tooling that updates your jars and/or source for the new packaging in an automated fashion to then be run on a Jakarta based server.

            Source https://stackoverflow.com/questions/66361859


            background image added to a div in CSS is not showing up in localhost
            Asked 2020-Dec-24 at 16:09

            So I added a background image to a div using CSS.



            Answered 2020-Dec-24 at 15:22


            What's the equivalent of appengine:run for the Java 11 Cloud SDK?
            Asked 2020-Aug-22 at 21:30

            tl;dr: How can I run this project locally, in a way that Datastore will work? (Zip download link here.)

            I'm migrating a Java 8 project that used App Engine and Datastore over to Java 11.

            With Java 8, I used the Cloud SDK-based App Engine plugin to run the server locally using mvn appengine:run and to deploy to the live server using mvn appengine:deploy.

            I followed this guide which told me to delete the appengine-web.xml file and use app.yaml instead..

            To deploy to the live server, I can still use mvn appengine:deploy and this works fine, with and without Datastore.

            To deploy locally, I run mvn package exec:java. This works fine for running a basic server without Datastore, but if I add some example Datastore code, then I get this error:



            Answered 2020-Aug-22 at 21:30

            Based on guillaume blaquiere's suggestion in their comment, I tried following this guide for manually running Datastore locally.

            I ran gcloud beta emulators datastore start in one command line, which seemed to run fine, and then I ran $(gcloud beta emulators datastore env-init) in another command line, and I got this error:

            Source https://stackoverflow.com/questions/63445036


            Java Server using Jetty: Very simple example does not work, displays HTTP ERROR 503 Service Unavailable
            Asked 2020-Aug-22 at 15:47

            I have been following this tutorial: https://happycoding.io/tutorials/java-server/servlets

            Displaying a static html webpage was fine, however I can't get the dynamic version to work. My web.xml is as follows:



            Answered 2020-Aug-22 at 15:47

            I figured out the problem.

            The browser was only displaying the 503 error, but the terminal from which I had started the server was actually displaying more error information. The error was that the current version of jdk I was using was not compatible with jetty. I couldn't figure out how to change the java version in bluej, so instead I just downloaded se 8 and compiled through the command line. This fixed the problem.

            Source https://stackoverflow.com/questions/63527889


            App Engine Java 11 could not find or load main class on live server
            Asked 2020-Aug-14 at 09:35

            tl;dr: Why does this work locally but not when I deploy to my live App Engine project?

            I'm trying to create a barebones servlet-based web app using the Java 11 version of App Engine. I'm updating a few projects from Java 8 to Java 11 following this guide. I'm also using this guide and this example. My goal is to use Jetty to run a very simple web app that serves a single static HTML file and a single servlet file in App Engine.

            My web app works fine when I run locally:



            Answered 2020-Aug-14 at 09:35

            I think your problem is that you are including the Main class in the war itself, and App Engine is unable to find it.

            As you can see in the GCP migration guide, the Main class is defined in an external dependency named simple-jetty-main.

            With the execution of the maven-dependency-plugin this dependency is copied to the appengine-staging directory, making it accessible from the Java classpath.

            This is the reason why the Main class can be found in the example proposed in the guide when executing the command from the app.yaml entrypoint:

            Source https://stackoverflow.com/questions/63333073


            Display Image On PHP WebPage Instead Of Downloading Using PhantomJS
            Asked 2020-May-27 at 13:10

            I am trying to capture some screenshot of Web URLs so for this purpose, I searched everything on Google up to 10 pages and found nothing to clear my mind so finally asking for help here.

            To have a better screenshot of my URLs, after searching many plugins, APIs, and codes, I found PhantomJS much reliable and recommended by many developers. Finally, I created my script to capture the screenshot below using Windows 10 and Wamp Local Server later will host my script on Linux based shared web hosting server.

            1.) First I downloaded the PhantomJS from https://phantomjs.org/ for Windows (.exe) file and saved it in D:\Wamp_Server_64\www\MyProject\bin\phantomjs.exe folder.

            2.) Created some below files as basics.

            PHP file (capture.php):



            Answered 2020-May-27 at 06:29

            You need HTML to display the image. PHP only does the processing. Try rendering the image on HTML

            Source https://stackoverflow.com/questions/61983687


            Centering views in code vs xml
            Asked 2018-Jan-13 at 18:56

            I have this XML layout:



            Answered 2018-Jan-13 at 18:56

            To replicate the given XML, you want to call setGravity(Gravity.CENTER) on the LinearLayout, rather than fiddling with the individual child Views' LayoutParams.

            For a LinearLayout, gravities on its children's LayoutParams that are in the same direction as the LinearLayout's orientation are ignored, as LinearLayout just wants to plainly stack its children in the given direction. That is, for your vertically oriented LinearLayout, the vertical centering inherent to Gravity.CENTER has no effect, so only the horizontal centering is applied, when those lines are un-commented.

            However, the gravity set on the LinearLayout itself is a different story. Though the children's individual gravities are ignored, the LinearLayout will still apply its own internal gravity to the children when they're laid out. That's why setting the gravity directly on the LinearLayout has the desired effect.

            Also, you can also omit the LayoutParams that you're setting on the LinearLayout. It will fill the content space by default, and the gravity you're setting there isn't effecting anything, as it's telling the LinearLayout's parent how to lay out the LinearLayout itself, not anything to do with its children.

            Source https://stackoverflow.com/questions/48242967

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install HappyCoding

            You can download it from GitHub.
            You can use HappyCoding like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the HappyCoding component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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