Tuesday, 7 of November of 2006
To program for Handspans in Java being used free tools
As we already saw in post previous, the possibility exists of developing programs for our Palm writing in language C, using only free and gratuitous tools. But as Josemar in a commentary of this entrance remembers well, we do not have to forget to us another great language: Java.
Thanks to the virtual machine Java developed by IBM, the WebSphere Everyplace Micro Environment, any MIDlet de JavaME programmed for MIDP 2,0 will be executed without problems in a Palm. For that they have not programmed using J2ME (Micro Edition), they only must think about it like a reduced version of J2SE (Standard Edition), optimized for movable devices.
Nevertheless, this machine is gratuitous for certain equipment, but of payment for the others. Even there are equipment nonsupported. So if we want a really free option to execute programs in Java in our Palm, we have another option: SuperWaba. There is an introduction to very well explained SuperWaba in PDAExpertos:
SuperWaba is a platform for the programming of small devices. (from now on PDA’s).Define a language, a virtual machine, a format of files class and a set of classes bases. SuperWabadesciende de Waba and is compatible with this. It is possible to be said that SuperWaba is developed Waba but more. Due to the method in which he has been designed, the programmers can use development tools oriented to JAVA to create programs that are executed in SuperWaba.
The syntax of the programs written for SuperWaba is a subgroup of language JAVA, which allows that the developers that esten familiarized with JAVA can quickly begin to use the SuperWaba. The format of the files class (class) of SuperWaba is also subgroups of formatoJAVA. Nevertheless SuperWaba drift of JAVA nor does not have to do with Sun Microsystems.
The language defined by SuperWaba, its virtual machine and the format of the files class has been designed so that they are optimal for his use in PDAs. The characteristics of JAVA that used much memory or that were unnecessary for the PDAs have been omitted in the design of the language and its virtual machine.
SuperWaba has a set of classes bases designed to be smallest possible and even so to contain the functionalities necessary to write professional programs. It also contains a set of classes that allow that the programs written in this language can be executed in any platform that interprets the JAVA. By ejemplolos programs written in this language they can be executed in a PalmPilot and Ipaq like Applet, or independent applications in UNIX, WINDOWS, MSDOS and even in a computer YOU.
Programs written in SuperWaba for Palm
The documentation of SuperWaba is very complete, and the list of supported hardware quite ample. In this page aid can be to install SuperWaba in MacOSX and Linux. As they say in the introduction, the passage of the API of Java to the one of SuperWaba is equivalent to which happens when happening to J2ME, so there is really no an extra effort that to do.
One third virtual machine Java for Handspans existed, developed by the own Sun Microsystems. Nevertheless, although still the instructions of installation can be found, the unloading page no longer exists, which makes think that this software has been discontinued. Nevertheless, in other pages (for example in Softonic) still it is possible to find it.
So we already know two ways and average to execute Java applications in our Palm. And like developer, we have the great advantage of being able to use the same surroundings of programming that is used for the development of standard Java applications:
- One of best the IDE for development in Java is without a doubt Eclipse. And we can use it perfectly to develop programs with J2ME simply using plugin EclipseME. If on the contrary we do not want to use SuperWaba either there is problem: the project SuperWaba IDE exists that adds functions to the surroundings which they facilitate his use, and to do that Eclipse utillize SuperWaba SDK is only necessary to follow these instructions.
- Another IDE very valued is of course NetBeans, and to develop applications that only use J2ME we must install added call J2ME MIDP Development. Also there is option to use SuperWaba, following this tutorial detailing in Spanish.
- Of course, there are many other tools of Sun that is worth the trouble to prove, like the Sun Java Wireless for Toolkit CLDC, or the Sun Java for Toolkit CDC.
- And if we preferred a commercial solution by the reason that is, exist so varied options as Mobile Studio de Borland, for Simplicity Handspans, or the Workplace Client Technology, Micro Edition of IBM, that facilitates the extension of applications managed from a central servant to the PDA.
- Finally, for the purification tasks, many documents in Internet exist that can be to us of aid, like this one of Palm on purifying programs using a networking, or a tutorial of use of the Java Wire Debug Protocol. The own Palm offers the possibility us jointly of using the simulator of Handspans with runtime of J2ME for this simulator. This interesting documentation and many other resources can be found in the own page of Palm dedicated to Java, as much for developer as for users.
As we see the development of Java applications for movable devices is in the heat of height, and our Palm can take advantage of all this existing software. Considering which the new operating system ALP that will replace Handspans has the possibility from the beginning of executing native applications of ALP, those of Handspans, and the written ones in Java, this route of development seems to also have a very promising future in the future equipment of Palm.
By: Analysis
RSS commentaries | Trackback | 
To print this post
Related articles
Suscríbete to be to the current of the new features in this blog
In order to extend the information of java on palm, reciéntemente it left the news that Motorola tries to construct to a free implementation of Java ME in collaboration with the Foundation Apache.
Without a doubt the excellent news.
Greetings and to prove superwaba
It is a pity that does not take advantage of much the capacities JAVA in Handspans. There are very few applications MIDP that are executed without problems, not to say MIDP2, that no practically works
I have proven SuperWaba and is necessary to say that it is enough good, is very comfortable to develop small programs for Handspans.
Nevertheless, for things a little more “serias”, the combination of the virtual machine of IBM and your favorite IDE (NetBeans in my case) are most efficient - mainly to purify
On the other hand, I clear the hat before Operates, to develop one of applications JAVA, - to my to understand more complex of the platform: It operates Mini
Then I feel it but I cannot share your joy made Java in Handspans. All the applications that I have proven until now on the machine of IBM in my TX have had more or less problems, including the mentioned one Operates, that did not do more than to hang itself.
Then equal Opera has not worked to me very well to my, and that that each that leaves update I prove it to see if it goes to me better, but nanai… in short, Java promises much, that is certain
To my no application java has worked to me well pense that was single to my but I see that not not even Opera that segun says he is very stable in aim to see when it leaves something but stable.
You do not think that it is problem of JAVA nor of the JVM, is problem of which many things in account at the time of programming an application with MIDP/MIDP2 for Handspans are not had.
The screen of Palm requires one more a more exclusive configuration (then he is not the habitual thing in a moving body for example), better control of events, lacks of widgets… they are so many things to consider and MIDP is “tan general” that perhaps it is insufficient for our platform.
I have Operates in my Treo 650 and although a pair of times has cracked me, does not do so much as the Blazer… You verify dbCache, the maximum size of heap of JAVA etc…
By the way, Sun is going to announce in a moment that Java will be released under license GPL
Hear, I am interested in installing superwaba in the Lifedrive, but I do not see how unload it, anybody me can make use?
Aca is something of info to develop with
SuperWaba!
Excellent Mauricio initiative
hoooooooooolaaaaaaaaaaaa! I have a LifeDrive and I have tried of everything but I cannot install games or applications java (jar) in my equipment, somebody knows the solution.
this it is my email: Linares_0852@hotmail.com, if somebody knows to something porfa ayudenme, and ademas I have an innumerable amount of programs and games for palm, if somebody this interested escribanme for solicitarmelos that with taste envio by email…! thanks, salu2. -
that IBM or nobodies of those serves to run games java????? respuestta please immediate agradeceria,, to send message to johnnyky22@gmail.com by favor……
the games java are games for common moviles,, thanks salu2
So that it leaves to me the error (it lacks the VM of java of IBM asegúrese of which this installed ibm`s websphare micro environment java VM) that I can do ayúdenme please
hello if somebody a cable can hechar me, I have a treo 650, and also it leaves I that error (need the VM of java of IBM) ma help by fa
I am a flaming user of tungsten E2: somebody can indicate to me if I can connect a motorola v3 e, or v3 i to have acseso to Internet broadband EDGE:o the normal one by GSM, by means of bluetooth (or by algun cable)
that navigator and mail podria to use preferredly with my E2 2007 in Spanish who is but util.
that programs recommend to me like agenda and
generals and to read and to publish documents pdf and or doc
I thank for nobody to them info, I am educational but an inexpert one in the E2.
Excellent note, congratulations.
Greetings
wave
podriais to help with java for palm tx… me;
me vaje the three unloadings and I tried to install them but when clicar on the icon it appears to me: it asegurese of which this installed IBM´S websphere micro environment java VM
gracias….espero your answer if it is not much to request