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Silvio Wangler's Blog: [Newbie] NullPointerException when calling findViewById

http://silviowangler.blogspot.com/2010/12/newbie-nullpointer-when-calling.html

Impressions, Notes and Stories about Software and Icehockey. Newbie] NullPointerException when calling findViewById. Well this one really took me quiet some time to solve it. When ever I called findViewById whitin my Activity I got a bloody NullPointerException :(. Here is the code that causes the NullPointerException. And after that the Activity can access the TextView targetDisplay. So the fix was unbelievably easy as you can see in the listing below. Public class DisplayActivity extends Activity { pri...

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Silvio Wangler's Blog: 12.2010

http://silviowangler.blogspot.com/2010_12_01_archive.html

Impressions, Notes and Stories about Software and Icehockey. Newbie] NullPointerException when calling findViewById. Well this one really took me quiet some time to solve it. When ever I called findViewById whitin my Activity I got a bloody NullPointerException :(. Here is the code that causes the NullPointerException. And after that the Activity can access the TextView targetDisplay. So the fix was unbelievably easy as you can see in the listing below. Public class DisplayActivity extends Activity { pri...

silviowangler.blogspot.com

Silvio Wangler's Blog: Groovy-JDK erhält eine Versionierung

http://silviowangler.blogspot.com/2008/12/groovy-jdk-erhlt-eine-versionierung.html

Impressions, Notes and Stories about Software and Icehockey. Groovy-JDK erhält eine Versionierung. 160;versteht man eine API Dokumentation (im Javadoc. Format) über die Methoden, um welche Groovy  Java Klassen (z.B. java.lang.String. Aus der Grails  Newsgroup. Habe ich dann erfahren, dass die Methode erst mit Groovy 1.5.7 einführt wurde und dass der DocGenerator. Welcher die Groovy-JDK Dokumentation generiert, den @since Javadoc Tag nicht interpretiert. . Yup, the patch looks fine, although I haven't tes...

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Silvio Wangler's Blog: 01.2011

http://silviowangler.blogspot.com/2011_01_01_archive.html

Impressions, Notes and Stories about Software and Icehockey. ANN] Moving my blog - Take 2. Some of my feed subscribers notified me that the new rss feed. Does not work. Sorry about that. Finally I have managed to get it up and running. Please try to subscribe again. It will work now. ANN] Moving my blog. Future posts will be published on my personal blog. Subscribe to: Posts (Atom). Wallisellen, Zürich, Switzerland. View my complete profile. My profile at linkedin. ANN] Moving my blog - Take 2.

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Silvio Wangler's Blog: iCalendar 0.1 Grails Plugin just released

http://silviowangler.blogspot.com/2009/05/icalendar-01-grails-plugin-just.html

Impressions, Notes and Stories about Software and Icehockey. ICalendar 0.1 Grails Plugin just released. Just seconds ago I got it all ready to release the first version of the iCalender Grails plugin. Version 0.1 is absolutely simple and easy to use. It covers - in my point of view - the main topics of the iCal format. So when should I use the iCalendar Plugin in my Grails application? Event(start: new Date(), end: new Date(),. Description: 'Events description', summary: 'Short info') {. I looked at your...

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Silvio Wangler's Blog: iCalendar 0.2 Grails Plugin is out

http://silviowangler.blogspot.com/2009/06/icalendar-02-grails-plugin-is-out.html

Impressions, Notes and Stories about Software and Icehockey. ICalendar 0.2 Grails Plugin is out. Just minutes ago the iCalendar Grails Plugin version 0.2 has been released. More details about the release can be found here. Subscribe to: Post Comments (Atom). Wallisellen, Zürich, Switzerland. View my complete profile. My profile at linkedin. ICalendar 0.2 Grails Plugin is out. I recently listend to the songs on last.fm. Grails - An open source web framework. JUnit - Testing Framework.

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Silvio Wangler's Blog: Counting lines of code using Groovy

http://silviowangler.blogspot.com/2010/10/counting-lines-of-code-using-groovy.html

Impressions, Notes and Stories about Software and Icehockey. Counting lines of code using Groovy. The following Groovy scripts easily counts the lines of files. In this example comparing the lines of code between an multi module Maven. 2 project and the Gradle. Def root = new File('/home/username/dirOne'). Def pomCount = 0. Def gradleCount = 0. Private int getLOC(File f) {. Int i = 0. FeachLine { i }. If (it.isFile() {. If (it.name = 'pom.xml') {. Println "Reading ${it.absolutePath}".

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Silvio Wangler's Blog: Becoming a Sun certified Java programmer or how to become a compiler

http://silviowangler.blogspot.com/2009/05/becoming-sun-certified-java-programmer.html

Impressions, Notes and Stories about Software and Icehockey. Becoming a Sun certified Java programmer or how to become a compiler. The next two weeks I am trying to prepare myself to Sun's certified Java programmer (SCJP) exam. Up to now it really does not kick ass. Well my main troubles with the studies are currently some topics in the exam objective 3.5 (Tokenizing). Objective 3.5 - Tokenizing with Pattern and Matcher. Let's say there's the pattern 'a? Public static void main(String[] args) {. Well thi...

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Silvio Wangler's Blog: Unexpected behaviour of ArrayLists size method

http://silviowangler.blogspot.com/2009/12/unexpected-behaviour-of-arraylists-size.html

Impressions, Notes and Stories about Software and Icehockey. Unexpected behaviour of ArrayLists size method. Today I just learned something more about Javas. And my Debugger after an half an hour of trying to find out what is wrong with my code. Filters null values and does not display them. With the following listing you can reproduce this behaviour using IntelliJ IDEA (or your prefered IDE). Import java.util.ArrayList;. Import java.util.List;. Public static void main(String[] args).

silviowangler.blogspot.com

Silvio Wangler's Blog: SCJP - This one could knock me out

http://silviowangler.blogspot.com/2009/05/scjp-this-one-could-knock-me-out.html

Impressions, Notes and Stories about Software and Icehockey. SCJP - This one could knock me out. Can anyone solve this? I've chosen wrong :( And probably learned something. 1 class Test4 {. 2 public static void main(String [] args) {. 3 boolean x = true;. 4 boolean y = false;. 5 short z = 42;. 7 if( z = 42) & (y = true) z ;. 8 if( x = false) ( z = 45) z ;. 10 System.out.println("z = " z);. What is the result? A) z = 42. B) z = 44. C) z = 45. D) z = 46. F) An exception is thrown at runtime. ICalendar 0&#4...