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Why would I use Scala/Lift over Java/Spring? [closed]
...y find yourself either using both Java and Scala collections everywhere or converting all collections in and out of the Java components.
Configuration
Lift apps are configured pretty much entirely through a method an application-wide "Boot" class. In other words, the config is done through Scala c...
Java: Get first item from a collection
... That does the same thing, it just checks if it is a list first, and gets by index if it is. It also has some code to try to fail faster on an actual Collection (that is if the index is too large it tries to figure that out without iterating through the whole thing and throwing the excepti...
Android: How to change CheckBox size?
...
You just need to set the related drawables and set them in the checkbox:
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="new checkbox"
android:background="@drawable/my_checkbox_background"
and...
Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
...ayout within UITableViewCell s in a table view to let each cell's content and subviews determine the row height (itself/automatically), while maintaining smooth scrolling performance?
...
What is the 'instanceof' operator used for in Java?
...);,
animal instanceof Dog // false
because Animal is a supertype of Dog and possibly less "refined".
And,
dog instanceof Cat // does not even compile!
This is because Dog is neither a subtype nor a supertype of Cat, and it also does not implement it.
Note that the variable used for dog above...
Espresso: Thread.sleep( );
...new TimeoutException())
.build();
}
};
}
And then pattern of usage will be:
// wait during 15 seconds for a view
onView(isRoot()).perform(waitId(R.id.dialogEditor, TimeUnit.SECONDS.toMillis(15)));
...
~x + ~y == ~(x + y) is always false?
...
Assume for the sake of contradiction that there exists some x and some y (mod 2n) such that
~(x+y) == ~x + ~y
By two's complement*, we know that,
-x == ~x + 1
<==> -1 == ~x + x
Noting this result, we have,
~(x+y) == ~x + ~y
<==> ~(x+y) + (x+y) == ~x + ~y...
Regex to validate password strength
...ex. To many times I use complex regex that I found, without really understanding what is going on.
– Nicholas Smith
Jan 27 '14 at 17:54
5
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What exactly does an #if 0 … #endif block do?
...not get executed, it doesn't even get compiled.
#if is a preprocessor command, which gets evaluated before the actual compilation step. The code inside that block doesn't appear in the compiled binary.
It's often used for temporarily removing segments of code with the intention of turning them bac...
how to get last insert id after insert query in codeigniter active record
...d of the last insert performed by the db object you're using. This should handle concurrent inserts, shouldn't it? Please correct me if I'm wrong.
– Abraham Philip
Jul 20 '15 at 20:20
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