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How can I implement a tree in Python?
...oesn't have the quite the extensive range of "built-in" data structures as Java does. However, because Python is dynamic, a general tree is easy to create. For example, a binary tree might be:
class Tree:
def __init__(self):
self.left = None
self.right = None
self.data = ...
How do I compare two strings in Perl?
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Java has the same problem, but for a different reason (and with different implications).
– Brent Bradburn
May 26 at 19:58
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HQL ERROR: Path expected for join
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Deprecated ManagedQuery() issue
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How to hide a View programmatically?
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node.js database [closed]
...may-2011 and also a possible switch to v8 instead of spidermonkey for the javascript engine which will allow each map-reduce command to run in it's own thread (bye bye singlethreaded map-reduce)
– christkv
Dec 3 '11 at 13:46
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Meaning of …interface{} (dot dot dot interface)
...nterface implemented by all variables in Go.
This is sort of analogous to java.lang.Object or System.Object in C#, but is instead inclusive of every variable type in the language. So it lets you pass in anything to the method.
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Clear the entire history stack and start a new activity on Android
... just for this: Intent.FLAG_ACTIVITY_CLEAR_TASK
Just to clarify, use this:
Java
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
Kotlin
intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
Unfortunately for API lvl <= 10, I haven't y...
How to hide one item in an Android Spinner
...This code is made for Xamarin.Android, but it could be perfectly ported to Java in 10 minutes. Use it like a simple ArrayAdapter without adding 0-indexed or count-indexed items to source array. It also set SpinnerGeolocation.SelectedItemId to -1 when nothing is chosen (hint is the current item).
pu...
How do I use method overloading in Python?
...ython, you don't do things that way. When people do that in languages like Java, they generally want a default value (if they don't, they generally want a method with a different name). So, in Python, you can have default values.
class A(object): # Remember the ``object`` bit when working in Pytho...