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Is returning null bad design? [closed]
...es more information on this.
For example, if I were to define a method in Java that returned a Collection I would typically prefer to return an empty collection (i.e. Collections.emptyList()) rather than null as it means my client code is cleaner; e.g.
Collection<? extends Item> c = getItems...
How to use LocalBroadcastManager?
...I'll answer this anyway. Just in case someone needs it.
ReceiverActivity.java
An activity that watches for notifications for the event named "custom-event-name".
@Override
public void onCreate(Bundle savedInstanceState) {
...
// Register to receive messages.
// We are registering an obse...
How to specify a port number in SQL Server connection string?
...
I have turned from C# to Java, and this answer saves me. Again.
– smwikipedia
Apr 3 '15 at 1:10
...
What does threadsafe mean?
... This is called synchronization. Right?
– JavaTechnical
Feb 7 '14 at 19:12
3
Yes. Forc...
Invoking a static method using reflection
...
Fromthe Javadoc of Method.invoke():
If the underlying method is static, then the specified obj argument is ignored. It may be null.
What happens when you
Class klass = ...;
Method m = klass.getDeclaredMethod(methodName, paramty...
Formatting code snippets for blogging on Blogger [closed]
... is hosted on Blogger and I frequently post code snippets in C / C# / Java / XML etc. but I find the snippet gets "mangled".
...
Mockito: Trying to spy on method is calling the original method
...olved here: they are both static methods of Matchers. Both are said by the Javadoc to return null, which is a little difficult to get your head around in itself. Presumably the Class object passed as the parameter is examined but the result either never calculated or discarded. Given that null can s...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
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Nice, thanks for this. Java and this type of thinking is so far removed from my nice little .net world :)
– Tom
Nov 28 '12 at 17:08
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JavaScript by reference vs. by value [duplicate]
I'm looking for some good comprehensive reading material on when JavaScript passes something by value and when by reference and when modifying a passed item affects the value outside a function and when not. I'm also interested in when assigning to another variable is by reference vs. by value and ...
How to configure Git post commit hook
...specific project.
I want to check in change set whether at least one java file is there the build should start.
Suppose the developers changed only XML files or property files, then the build should not start.
Basically, your build script can:
put a 'build' notes (see git notes) on the ...