the world is a pixel
Apache and JNLP files
To Apache Web Server correctly handles yours JNLP (Java Network Launch Protocol) files, modify or create a .htaccess file in the top directory of your web site and add the following:
AddType application/x-java-jnlp-file .jnlp AddType application/x-java-archive-diff .jardiff
Without these MIME-types, the user would see the xml jnlp file as a plain text in the browser. After that you can link to yours Java Web Start applications with a icon like this one:
This entry was posted on 6 November, 2008 at 11:43 am, and is filed under english. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site.
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Java: invoking a method by name
29 April, 2010 - 10:29 am
Tags: Class, Java, method, programming, Reflection
Posted in english | 1 comment
import java.lang.reflect.*; public class Foo { public void bar(int param){ System.out.println(param); } public static void main(String args[]){ Object f = new Foo(); try { Method m = f.getClass().getMethod("bar", int.class); m.invoke(f, 42); } catch (Exception e){ System.err.println(e); } } } $ java Foo 42
calling commands in Java
8 April, 2010 - 1:09 pm
Tags: getruntime, Java, programming, runtime
Posted in english | No comments
I don’t like the approach of calling native shell commands in any language instead of using multi platform libraries, but here is a little prof of concept Java program to call native commands. import java.io.*; import java.util.*; public class Exec { public static void main(String args[]) throws IOException { Process proc = Runtime.getRuntime().e xec(args); BufferedReader [...]
Iterating over a HashMap
8 April, 2010 - 11:22 am
Tags: collections, enhanced loop, foreach, hashmap, iterating, Java, programming
Posted in english | No comments
Iterating over a HashMap using the enhanced loop (foreach) in Java is a good way to keep your code smaller, more legible and usually more semantically coherent. import java.util.HashMap; import java.util.Map; class Foo {} public class Main { public static void main(String args[]){ Map<Byte, Foo> mHash; mHash = new HashMap<Byte, Foo>(); [...]
Getting enviroment information on Android
16 March, 2010 - 10:18 am
Tags: Android, Eclipse, Java, programming, who am i, whoami
Posted in english | 4 comments
This is a simple program I wrote called Who Am I that shows informations about the device which it is running. Which can be useful for developers and maybe advanced users. Download: WhoAmI.tar.bz2 – Eclipse project. It’s configured for Android platform 4 (1.6) but should work without problems in newer Android platform versions. WhoAmI.apk – [...]
The Caps Lock Java Socket Server
27 February, 2010 - 9:39 pm
Tags: caps lock, Java, programming, socket, upcase
Posted in english | 1 comment
Here is a simple server for those who are starting studying sockets or just needs a simple socket server example for reuse while writing your own behavior. Features: A client should enter a string and the server would answer the same string, with each symbol in up case, when possible. Default port at 8080. One [...]
Beware the locale
22 February, 2010 - 5:16 pm
Tags: development, i18n, Java, JUnit, locale, programming, String, teste unitário, toString, unit testing
Posted in english | No comments
Today I was programming a toString method for a class widely used in a application, using the very useful String.format that provides a C’s like printf formatter. @Override public String toString() { return String.format("VO[a: %.1f, b: %.1f, c: %.1f]", a, b, a+b); } %.1f means a float with one digit precision after the dot separator. [...]
Java Font List
5 January, 2010 - 6:10 pm
Tags: AWT, fonts, Java, JVM, Larabie, Larabie Fonts, programming
Posted in english | Comments Off
Here’s a program that lists fonts available in your JVM. You can also set the environment variable JAVA_FONTS to specify the font directory. import java.awt.GraphicsEnvironment; public class ListFonts { public static void main(String args[]){ GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment(); for(String font:e.getAvailableFontFamilyNames()){ System.out.println(font); } } } By using pipes you can count how many fonts you [...]
Tiled TMX Map Loader for Pygame
I’m using the Tiled Map Editor for a while, I even wrote that tutorial about it. It’s a general purpose tile map editor, written in Java but now migrating to C++ with Qt, that can be easily used with my set of free pixelart tiles. A map done with Tiled is stored in a file [...]
Java: Accessing Private Members
14 November, 2009 - 4:27 am
Tags: Class, Douglas Adams, Field, getclass, getDeclaredField, Hack, Hacking, Java, Life, Object, Object-Oriented Programming, OOP, Reflection
Posted in english | 3 comments
Using reflection to change the accessibility of a private object field and access it at runtime. import java.lang.reflect.Field; class Life { private int meaning = 42; } class Hack { public static void main(String args[]){ Life life = new Life(); try { Field field = life.getClass().getDeclaredField("meaning"); field.setAccessible(true); System.out.println(field.get(life)); } catch (NoSuchFieldException e) { [...]
Jedi Name
8 November, 2009 - 5:47 pm
Tags: Java, Jedi, joke, programming, star wars
Posted in english | No comments
A simple Java class that calculates your Jedi name based on your first, last name, mother’s maiden name and the city you grew up. /* Jedi first name: 1st 3 letters of last name + 1st 2 letters of first name Jedi last name: 1st 2 letters of mother’s maiden name + 1st 3 letters [...]
23 March, 2010 - 1:53 pm
hi i need import ..1 archive .property in jnlp… how i can do??? please.. step by step .. i am noob in java