java-me

I read the following: J2ME applications, unlike normal Java applications are preverified. What exactly does the preverification of J2ME jar file mean? Is it something like checksum? From here : Answer Preverification is a new phase in the development and deployment cycle for Java applications designed to run on the J2ME CLDC. Preverification performs certain checks on the Java bytecodes ahead of runtime. If this first verification pass is ok, the preverifier annotates the classfiles (using standard Java bytecode "attributes", so that these are still plain old Java bytecodes and will be

I am developing an application in Java ME that I want to provide as a library. Is there no way to hide classes that I don't want everyone to use, but is essential still in order for the library to work? UPDATE: I get that I can omit the public specifier, but how can I structure the library itself while developing without creating different packages? I like to view different packages as different folders simply which allows me to structure the code in a good way. However, in some cases I might need to access classes in other packages so this is rather tricky. What does packages really

I am communicating to a Tomcat Server using a Java ME application on my mobile device. I was wondering if I could compress my requests/responses using Gzip to reduce the number of bytes sent over the network. Modern phones have so much CPU power and the network is relatively slow so compression makes perfect sense. It's quite easy to do also. On the J2ME side, you do something like this (assuming you use HttpConnection), hc.setRequestProperty("Accept-Encoding", "gzip, deflate"); if (hc.getResponseCode() == HttpConnection.HTTP_OK) { InputStream in = hc.openInputStream(); if ("gzip".equals(hc

I am using midp 2.0. Here, I am using FileConnection for read and write files on mobile memory. I am able to read and write files on mobiles successfully. But while I am trying to write file data on mobile, it asking message like below. Application wants to read from the local file system is it OK to read your files? if I press yes, then it again shows Application wants to write to the local file system is it OK to update your files? These message are continuously showing approximately 10 times. Is there any way to prevent this repeating this more than one time? I have included my fileWrite

Below mentioned is my XML, <?xml version="1.0" encoding="utf-8"?> <soap:Envelopexmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <Response xmlns="http://tempuri.org/"> <Result> <mp_response> <data signature="something"> <outcome errorcode="0" errordescription="" errorsolution=""/> something </data> </mp_response> </Result> </Response> </soap:Body> </soap:Envelope> I wish to extract the "errorcode" from this XML. How I am suppose to do that ? Please help. If your target devices

How can I detect whenever the power cord is unplugged from electrical socket using JSR 256? You would add javax.microedition.io.Connector.sensor to the API Permissions tab of the Application Descriptor of the project properties. michael aubert From a quick look at the specifications of the JSR: (you might want to look for code examples, starting with Appendix D of the spec itself, the latest JavaME SDK, Sony Ericsson developer website, then google) As always, I would be worried about fragmentation in the diverse implementations of the JSR, but here's my first idea: import javax.microedition

I has developed one j2me mobile application. Now client side want to see the mobile IMEI number. So I don't know how to get it, I have tried this line System.getProperty("com.nokia.IMEI"); but it will come null only. Nokia System.getProperty("phone.imei"); System.getProperty("com.nokia.imei"); System.getProperty("com.nokia.mid.imei"); //especially for S40 devices Note: Requires signed MIDlet. S60 3rd edition device does not requires signing to fetch this info.On Series 40 phones this requires that your MIDlet is signed to either operator or manufacturer domain, and this is only available in

How can I handle 3rd party dependencies in a .jad file? Is it possible to bundle a .jar ? Do you need to unpack it and include the .class files? See approach of working with kXML2 open source library: for release you have to preverify it & build proj with ant: Ahmad Ferdous Bin Alam - How to Import kxml jar File to Your Project Slashdev - BlackBerry Development with Ant & Eclipse UPDATE: Tutorial: How To Use 3rd Party Libraries in your Applications for debug you have to add kXML sources and org.xmlpull.v1 sources to your BB project JAR files can NOT be combined with COD files. You first need