Author: Luca Zanini
-
How to access to the members of outer class from inner class
You can’t access to the members of an outer class from an inner class using the keyword “this”. In fact, the keyword “this” in an inner class is a reference to the inner class itself. To have a reference to the outer class, you must use the syntax: [OuterClassName].this where [OuterClassName] is the name of…
-
The android.os.NetworkOnMainThreadException exception
In this article I explain a possible cause of android.os.NetworkOnMainThreadException and how to avoid it. From the Android site you can read: NetworkOnMainThreadException The exception that is thrown when an application attempts to perform a networking operation on its main thread. This is only thrown for applications targeting the Honeycomb SDK or higher…
-
How to add a file .jar to an Android project in Eclipse
Adding a file .jar from the menu of Eclipse, File -> Properties -> Java Build Path -> Libraries -> Add External JARs…, causes an error, the project compiles but at runtime you get the error “NoClassDefFoundError” as if the file .jar was missing in the project.
-
Tab Layout in Android
This post is an example of implementing a tab layout in Android using a TabActivity class.The TabActivity class is deprecated since version 3.0 Honeycomb, then you should use ActionBar as I’ll write in a next post.
-
The access modifiers of methods and variables of a java class
In this article I explain how to set the visibility of methods and instance variables, ie those variables declared outside of any method (the variables declared within a method are called local variables and they are visible in the method only).
-
Dynamic TableLayout in Android
In this post I explain how to implement in runtime a table with rows and columns without using a XML file. To display the borders of the TextView I use the method illustrated here.
-
Setting MyBatis in Spring
MyBatis, a free software distributed under the Apache License 2.0, helps to connect Spring with relational databases using XML or annotations.Here’s a simple example loading a jsp page to display data from a mysql table.
-
Getting the list of users belonging to a role
Lotus provides the method QueryAccessRoles of the NotesDatabase class to get the roles of a user and there are no methods to get users belonging to a role, but you can get them by combining IsRoleEnabled of the NotesACLEntry class with the function getUsersByGroup that I wrote in a previous article.