Generate A Javadoc From A Sample Project

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Operation: Generating Javadoc from a sample Javadoc project is standard output for Java APIs, and building a Javadoc is somewhat easy. Javadoc is generated through something called a “doclet”. Different docs can parse Java comments in different ways and produce different outputs. But in general, almost every Java document uses the standard doclet. Javadoc output will be familiar and welcome to Java developers. Java is supported by Oracle. Developers can integrate Javadoc output directly into their IDE, which makes documentation convenient and easily accessible. In fact, Javadoc is often distributed this way rather than being deployed and uploaded to a server. Javadoc contains references only. You cannot add any concept help files to the output or change the layout. Read: how to create eclipse javadoc

• Create Javadoc
• Javadoc and error checking
• Play with parameters Javadoc
• Automatically build Javadoc

Create Javadoc

In this activity you will create a Javadoc from the sample java project you downloaded earlier. If you want to preview the Javadoc that you will build, you can view the output here.

In Eclipse, go to File > Export.

Extend Java and choose Javadoc. Then click Next.

Select your project and package. Then, in the right pane, select the classes you want to include in the Javadoc – in this case topqa.info and topqa.info.Generate Javadoc Do not select the topqa.info class that contains your main method because you do not need to provide Java documentation for your program; Your Javadoc will provide documentation for the classes that developers can choose to use in their programs. In this sample project, the main method is included in topqa.info, but it could have been included in a file with a different name.

Select the display option you want: Private, Package, Protected, or Public. In general, you choose PublicYour API may have multiple helper or utility classes used on the backend, but only a select few will be used by your developer audience. These classes are public. It’s the public classes that your developer object will use that form the API aspect of the class library.

Please make sure that Use standard doclet radio button is selected. (It is selected by default.)

Read more: how to fold a tuxedo handkerchief Browse and select the export location where you want to generate the Javadoc. By default it will be created in the same project folder as your code, but in a subfolder called doc. This way you can browse the Javadoc directly in your Eclipse IDE. The reason is, the project already has the generated Javadoc in the documents directory, so you may not even realize that you have generated a Javadoc file because your new output will just overwrite the existing doc files. When developers provide Java libraries, they often include documentation directly in a distribution zip file that contains that JAR. Users are used to finding documents in the doc folder.

Click Next and view additional configuration options.Javadoc Next Screen Here you can choose if you want to omit some tags such as @author and @deprecated. In general, you should not include the @author tag, as it may only be important internally, not externally. You can also choose different options in the Javadoc framework. If you have a custom stylesheet, you can select it here. Most likely you will only be making changes to the appearance such as to colors.

Click Next.Dashboard Here you can select an HTML page that you want as your dashboard in Javadoc. You can select any HTML page and it will be included in the index.

Read more: how to keep cats from jumping the fence End.If the End button is not available, it may be because Eclipse cannot find a suitable Javadoc executable. You can click Configure and browse to the file manually. On MacBook Pro, the Javadoc file is located at /Library/Java/JavaVirtualMachines/jdk1.8.0_171.jdk/Contents/Home/bin/javadoc.If prompted update the Javadoc location (may differ from Eclipse workspace location) yours), do so by clicking Yes for allBrowse to the destination location and open the topqa.info file in your browser to view the files. If you’re having trouble building the Javadoc, you can see the output here.

Javadoc and error checking

The Javadoc also checks your tags against real code. If you have parameters, exceptions, or returns that do not match the parameters, exception, or return in your actual code, the Javadoc will display some warnings.Javadoc Error Checking

Play with parameters Javadoc

Try removing a parameter from a method and recreating the Javadoc. Make sure that the console window is open so you can see the error warnings.

Automatically build Javadoc

In most development stores you will never create a Javadoc file manually as I explained here. Javadoc allows you to build it from the command line by providing it with a configuration file. Most developers have a build management tool where they can configure the output from their code, including the Javadoc. If the developers ask you to build Javadoc, chances are their build management system might be a bit primitive. However, it can be helpful if you build the Javadoc output yourself (as I explained here) to test and review the output before generating it through the build management tool.

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