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Round double in two decimal places in C#?
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Math.Round(inputValue, 2, MidpointRounding.AwayFromZero)
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How to set different label for launcher rather than activity title?
...lter> can have a label attribute. If it's absent the label is inherited from the parent component (either Activity or Application). So using this, you can set a label for the launcher icon, while still having the Activity with it's own title.
Note that, while this works on emulators, it might no...
What's the difference between “Architectures” and “Valid Architectures” in Xcode Build Settings?
...ed for any but those architectures. Mostly, though, it's just a cue to you from Xcode that indicates which architectures it can build for, and you pick from there for your ARCHS.
– Jeremy W. Sherman
Jun 18 '14 at 13:16
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Combining two lists and removing duplicates, without removing duplicates in original list
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What I don't want any duplicated neither from first nor from second?
– Dejell
Dec 5 '13 at 13:52
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Testing modules in rspec
... solution in rspec homepage. Apparently it supports shared example groups. From https://www.relishapp.com/rspec/rspec-core/v/2-13/docs/example-groups/shared-examples!
Shared Example Groups
You can create shared example groups
and include those groups into other
groups.
Suppose you ...
NSLog/printf specifier for NSInteger?
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So the only thing you can do unfortunately: Use %ld, and cast your values from NSInteger to long, or from NSUInteger to unsigned long.
Once you don't build for 32 bit anymore, you can just use %ld, without any cast.
shar...
When NOT to use yield (return) [duplicate]
...t get thrown until the iterator is
// iterated, which can be very far away from this method invocation
public IEnumerable<string> Foo(Bar baz)
{
if (baz == null)
throw new ArgumentNullException();
yield ...
}
// DO this
public IEnumerable<string> Foo(Bar baz)
{
if ...
How to check whether an array is empty using PHP?
... create an array with database column names as the keys but no values/data from the database), then the array will NOT be empty().
In this case, you can loop the array in a foreach, testing if each key has a value. This is a good method if you need to run through the array anyway, perhaps checkin...
How do you know a variable type in java?
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I learned from the Search Engine(My English is very bad , So code...)
How to get variable's type?
Up's :
String str = "test";
String type = str.getClass().getName();
value: type = java.lang.String
this method :
str.getClass().getSi...
Spark java.lang.OutOfMemoryError: Java heap space
...or your heap. IME reducing the mem frac often makes OOMs go away. UPDATE: From spark 1.6 apparently we will no longer need to play with these values, spark will determine them automatically.
Similar to above but shuffle memory fraction. If your job doesn't need much shuffle memory then set it to a...