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What is the difference between MediaPlayer and VideoView in Android
...nd example from android sdk
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/media/MediaPlayerDemo.html
Also some people had issues playing video on emulator, so make sure to test it on actual device if you have issues
...
Static implicit operator
...sion, it can also cause strange/surprising bugs, and can confuse a (human) API user. By way of example, there are very few usages of implicit conversions in the BCL. Use with discretion!
– Drew Noakes
Aug 25 '15 at 12:49
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initializing a Guava ImmutableMap
... well, you may have multiple puts still, but they are now using fluent API, so no need to repeat myMap for each .put
– Kevin Welker
Feb 28 '12 at 22:25
21
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Java URL encoding of query string parameters
... in short URLEncoder is for encoding for form submission. It is not for escaping. Its not the exact same escaping that you would use to create URLs to be put in your web page but happens to be similar enough that people abuse it. The only time you should be using URLEncoder is if your writing a HTTP...
Dependency injection with Jersey 2.0
...'m not sure what EntityManager is, but judging by docs.oracle.com/javaee/6/api/javax/persistence/… it seems to be an interface. You can bind it using bind(EntityManagerImpl.class).to(EntityManager.class) (which will bind a class EntityManagerImpl implementing the interface EntityManager. If you ne...
BigDecimal setScale and round
... leftmost nonzero digit of the exact result. docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html
– Eddy
Sep 6 '16 at 7:06
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What order are the Junit @Before/@After called?
...void setUp() ) and @After ( public void tearDown() ) method to establish API and DB connections. What I've been doing is just overriding those two methods in each testcase and calling super.setUp() and super.tearDown() . However this can cause problems if someone forgets to call the super or pu...
Is there a destructor for Java?
...rces, use an explicit method call. This convention can be seen in existing APIs (e.g. Closeable, Graphics.dispose(), Widget.dispose()) and is usually called via try/finally.
Resource r = new Resource();
try {
//work
} finally {
r.dispose();
}
Attempts to use a disposed object should throw...
How to detect Windows 64-bit platform with .NET?
...and if you are running in a 32-bit process, you still have to call the Win API function IsWow64Process. If this returns true, you are running in a 32-bit process on 64-bit Windows.
Microsoft's Raymond Chen:
How to detect programmatically whether you are running on 64-bit Windows
My solution:
static ...
Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
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Changing the implementation doesn't change anything for the users of your API.
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