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How to make a Java class that implements one interface with two generic types?
...ring the Consumer<*> instances in instance fields if get*Consumer is called often.
– TWiStErRob
Apr 24 '15 at 10:44
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C# Create New T()
... @Calgary Coder: What's the use for a type[] signature, you can just call CreateInstance with params directly, without explicitly specifying the signature. In both cases you would get MissingMethodException if a matching constructor does not exist.
– Boris B.
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Allow user to select camera or gallery for image
... for me but I had one problem where using the camera as the source was not calling onActivityResult and the camera itself was not dismissing. The root cause was a missing permission in the manifest: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
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recursion versus iteration
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Recursion is usually much slower because all function calls must be stored in a stack to allow the return back to the caller functions. In many cases, memory has to be allocated and copied to implement scope isolation.
Some optimizations, like tail call optimization, make recur...
Extending from two classes
...string foo() { return super.foo(); } //What do I do? Which method should I call?
}
C++ and others have a couple ways to solve this, eg
string foo() { return B::foo(); }
but Java only uses interfaces.
The Java Trails have a great introduction on interfaces: http://download.oracle.com/javase/tu...
Javascript seconds to minutes and seconds
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What's the sense of having negative time? Logically a time difference is always positive
– mcont
Dec 29 '14 at 19:08
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How can I put a ListView into a ScrollView without it collapsing?
...platform, and I'm sure this is a bit hackish, especially in the part about calling .measure directly, and setting the LayoutParams.height property directly, but it works.
All you have to do is call Utility.setListViewHeightBasedOnChildren(yourListView) and it will be resized to exactly accommodate ...
How does one generate a random number in Apple's Swift language?
...0 introduces new easy-to-use random functions for many data types.
You can call the random() method on numeric types.
let randomInt = Int.random(in: 0..<6)
let randomDouble = Double.random(in: 2.71828...3.14159)
let randomBool = Bool.random()
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Laravel Eloquent: Ordering results of all()
I'm stuck on a simple task.
I just need to order results coming from this call
9 Answers
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pip installing in global site-packages instead of virtualenv
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I had this problem too. Calling pip install <package_name> from the /bin directory within my Python 3.3 virtual environment on my Mavericks Mac caused the Python package to be installed in the Python 2.7 global site packages directory. This w...