Category Archives: java
Creating a J2ME Web Service Client
This last week I was concentrated in developing a J2ME application that communicates with a Web Service to gather some information about route planning. Basically, the mobile app ask for a route, given an origin and a destination waypoints. Although this kind of work looks very easy, I got some problems to accomplish it. Due to that, I will […]
Google Maps API Library for GWT
Hello everybody, 2009 starts with a very good news for Java web developers interested in Google Maps services. This week, the Google Geo Developers Blog published about the announcement of the Google API Libraries for Google Web Toolkit. They’re a collection of libraries that provide Java language bindings for popular Google JavaScript APIs, facilitating its use with GWT, which translates your […]
Remote Pair Programming
Hi, every software engineer and project manager knows about XP and Pair Programming, but most of them doesn’t know how to do it with a distributed team. A good option in this case is to make use of a Eclipse Plugin named Cola: Real-Time Shared Editing. Cola’s main funtction is to enable code real time […]
Java Challenge Answer (3)
Hi, so, did anyone put the code to run in Eclipse?? If you did it, you could see that the code is correct… it doesn’t fail in any of its parts, but why? It is really strange, because we are a assigning a String inside a list of Integer and it would fail at runtime, […]
Java Challenge (3)
Hi guys, here I am with another Java Challenge. Looking at the following code, are you able to say where does it fail?? – import java.util.ArrayList; import java.util.List; public class GenericsHandler { public void insert(List list) { list.add(new String(“42″)); } public static void main(String[] args) { GenericsHandler gh = new GenericsHandler(); List<Integer> list = […]
Java Challeng (2) Answer
Well, the comments are right. public class Test { public static void main(String[] args) { String s1 = new String(”Test 2″); String s2 = s1; System.out.println(”s2 = ” + s2); s1 = s1 + ” modified”; System.out.println(”s2 = ” + s2); } } The code above will print: Test 2 […]
