I want to write a Java Applet program in Netbeans with run on. XML Support in NetBeans. The simplest way how to participate and to improve current status of the XML support in the NetBeans IDE is to share your. Build with NetBeans IDE, Deploy to Oracle Java Cloud Service; Best Support for Latest Java Technologies. Fast & Smart Code Editing.
![]() ![]() How to Write a Simple Program in Netbeans. Click the green 'Execution Arrow' icon near the top of the NetBeans menu bar to run the program in a debugging window. Getting Started With the NetBeans C/C++. The NetBeans C/C++ Development Pack lets you create C and C++ Application and. Then we will run the program. Chapter 1. 1: Using Jython in an IDE — Jython Book v. In this chapter, we will discuss developing Jython applications. Eclipse and Netbeans. There are many other development environments. Python and Jython today; however, these two are. Jython- specific. Eclipse has had a plug- in known as Py. Dev for a number of. Python and Jython applications alike. Netbeans began to. Python and Jython support with version 6. The. Netbeans IDE also provides rich support for development and. Python and Jython applications. Please note that in this chapter we will refer to Python/Jython as. Jython. All of the IDE options discussed are available for both. Python and Jython unless otherwise noted. For readability and. Python and Jython. Python or Jython specifically. Also note that we will. Netbeans the plug- in is called Netbeans Python Plug- in. This. plug- in works with both Python and Jython in all cases. Eclipse. The latest available version when this book. Eclipse 3. 5 (also known as Eclipse Galileo). Thus, we will use. Py. Dev, an excellent plug- in which adds support for the Python. Jython. Py. Dev’s home. To install the plug- in, start Eclipse and go to Help> Install new. Software.., and type http: //pydev. After a short moment, you will see an entry. Py. Dev in the bigger box below. Just select it, clicking on the. Py. Dev (see Figure 1. Next button. Figure 1. Installing Py. Dev. After this, just follow the wizard, read the license agreement. Eclipse Public License v. As that is. the recommended option, do so. Once Eclipse restarts itself, you. Python support on the IDE. Minimal Configuration. In this context, an interpreter is just. Python. When. starting you will normally only need one interpreter, and for this. Jython 2. 5. 1. To configure it, open the. Eclipse Preferences dialog (via Windows> Preferences in the main. On the text box located at the top of the left panel. We clearly need to fix that! So, click the New. This will avoid confusion. After selecting the jython. Py. Dev will automatically. Py. Dev always infer the. OK. If all has gone well, you will now see an entry on the list of. Jython interpreters, representing the information you just entered. List of Jython interpreters. That’s all. Click OK and you will be ready to develop with Jython. IDE. If you are curious, you may want to explore the other options found. Preferences window, below the Py. Dev section (after clearing. Jython interpreter. But in our experience, it’s rarely needed to change. In the next sections we will take a look to the more important. Py. Dev features to have a more pleasant learning experience and make. Hello Py. Dev!: Creating Projects and Executing Modules. It is, indeed, a very dumb example. The. point is to keep the focus on the basic steps you will perform for. Python- based project inside the Eclipse IDE. So, as you. probably guessed, our first project will be a Hello World. Let’s. start it! Go to File> New > Project. You will be presented with a potentially. Eclipse. As the. project name, we will use Learning. Py. Dev. We will leave the. Interpreter alone, which will default to the Jython interpreter we. Minimal Configuration section. We will also. leave checked the . Let’s create our program now. Right- click on the project, and select New> Py. Dev Module. Leave the. Package blank and enter . Py. Dev offers some. So leave the Template field. Finish. Py. Dev will present you an editor for the main. It’s time to implement our program. Write the following. Listing 1. 1- 1. if . Select Jython Run. OK. The program will run and. Command key instead of Ctrl for all the. If you manually typed the program, you probably noted that the IDE. Python a line ending in . See what happens if you. The. IDE will highlight the line flagging the error. If you hover at the. Figure 1. 1- 3. Figure 1. Error explanation appears when you hover over the. Expect the same kind of feedback for whatever syntax error you. It helps to avoid the frustration of going on edit- run loops. Passing Command- line Arguments and Customizing Execution. Because you have learned to use Jython as a. GUI). As you have probably guessed, we will make our toy program to take. The argument will represent the name of. Here is. how our main. Listing 1. 1- 2. importsysif. It makes sense, because you didn’t. Not to say that it was your fault, as you didn’t. To specify command line arguments, go to the Run> Run Configurations. It will probably be already. Then, on the main. You can change aspects such as the current. JVM, change the interpreter. We just need to. specify an argument, so let’s type . Note that the value you entered is remembered; that is, if. Ctrl + F1. 1 now, the program will print . Some people may point out that this behavior makes testing. Run Configurations. But if we really want to test our programs (which is a. We will look into. IDE features. Playing with the Editor. We will use the. optparse module to process the arguments this time. Refer to. Chapter 9 if you want to remember how to use optparse. We will also. use decorators (seen in Chapter 4) to make it trivial to extend our. So, our little. main. Listing 1. 1- 3.# - *- coding: utf- 8 - *- importsysfromoptparseimport. Option. Parsergreetings=dict(en=u'Hello %s!',es=u'Hola %s!',fr=u'Bonjour %s!',pt=u'Al. Try. pressing Ctrl + Space (don’t change Ctrl with Command if you are. Mac OS X; this hotkey is the same on every platform), which. Intellisense in Microsoft’s parlance) on different locations. It. will provide completion for import statements (try completing that. Option. Parser token) and attribute or method access (like on. But you can also call for help at any point. Solution: Press Ctrl + Space and Py. Dev will complete the. Also try Ctrl + Space on keywords like . You can. customize the templates on the Py. Dev> Editor> Templates section of. Eclipse Preferences window (available on the Window> Preferences. The other thing you may have noted now that we have a more sizable. Outline panel on the right side of the IDE window shows a. It. also displays classes, by the way. And don’t forget to run the code! Of course, it’s not really. Ctrl + F1. 1 we still get the. But if you edit the. Run Configurations dialog) to the. Also see what happens if you specify a non. UI (say, –ui speech) or an unsupported language. We even. support the –help! So we have a generic, polyglot greeter which. At this point you are probably tired of manually testing the. Just one. more section and we will see a better way to test our program using. IDE. Actually, part of the next section will help us move. A Bit of Structure: Packages, Modules, and Navigation. There are. simpler (in the sense of a more concise and understandable code). But we needed to grow the. IDEs, which for some people. And. you don’t expect me to put a full- blown Pet Store example in this. So, let’s suppose that the complications we introduced (mainly the. UIs exposed via decorators) are perfectly justified. In other. words: let’s extrapolate. The point is, we know that the great majority of our projects can’t. Python module). Even our very. And, when we. realize that we need more than one module, we also realize we need. So, as seen in Chapter 8, the. Python solution to this problem is modules and packages. Our plan is to organize the code as follows: everything will go. The main. py script will remain as the command line entry. Right- click on the project and select New> Py. Dev Package. Py. Dev will create the package. As we said, we. will move the core logic to this package, so this file will contain. Listing 1. 1- 4.# - *- coding: utf- 8 - *- greetings=dict(en=u'Hello %s!',es=u'Hola %s!',fr=u'Bonjour %s!',pt=u'Al. Right- click on the project, select New> Py. Dev Module, Enter. You can avoid. typing the package name if you right- click on the package instead. Click Finish and copy the print. But, as you saw on Chapter 7, modules are just files with the. So you may want to create modules using New . On a small project. Py. Dev Package Explorer) isn’t difficult, but you can imagine that. So we will see some. First, let’s suppose you are reading main. Py. Dev will. automatically move you into the definition. This also works on most. Another good way to quickly jump between files without having to. Package Explorer is to use Ctrl + Shift + R, which is. Open Resource”. Just type (part of) the file name. Py. Dev will search on every package and. Now that you have many files, note that you don’t need to. For every script you run (using the procedure in which you. Ctrl + F1. 1) the IDE. Run History”. You can access the. Run History” on the main menu under Run - > Run History, or in the. In both places you will find the latest programs you ran, and. Ctrl + F1. 1. Finally, the IDE internally records a history of your “jumps”. To do. this, use the appropriate button on the toolbar or the default. Ctrl + Left and Ctrl + Right. Testing. Let’s create a module named tests on the hello package with. Listing 1. 1- 8. import unittest. UIMock(object). def . A nice feature of Py. Dev. is the automatic discovery of tests, so you don’t need to code. Just right- click on the. Package Explorer and select Run As> Jython. You will see the output of the test almost immediately. Listing 1. 1- 9. Finding files.. A convenient way to do tests which are more black- box- like. Note. We will cover testing tools in much greater detail in. Chapter 1. 8, so take a look at that chapter if you feel too. The nice thing about doctests is that they look like an interactive. We will test our console module using a doctest. First, click the right- most button on the console’s toolbar (you. Open Console tip when you pass the. From the menu, select Py. Dev Console. To the next. Jython Console. After doing this you will get an. IDE. Let’s start exploring our own code using the interpreter: Listing 1. You. will note how code completion also works on the interactive. Back to the topic, we just interactively checked that our console. The cool thing is that we can copy and. Create a module named doctests inside the . After adding a little of boilerplate to make this.
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