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Sort a list by multiple attributes?
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A key can be a function that returns a tuple:
s = sorted(s, key = lambda x: (x[1], x[2]))
Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operato...
What is the correct way to get a subarray in Scala?
I am trying to get a subarray in scala, and I am a little confused on what the proper way of doing it is. What I would like the most would be something like how you can do it in python:
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Static nested class in Java, why?
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The Sun page you link to has some key differences between the two:
A nested class is a member of its enclosing class. Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes d...
How to overload __init__ method based on argument type?
Let's say I have a class that has a member called data which is a list.
10 Answers
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How do I use Notepad++ (or other) with msysgit?
How do I use Notepad++ (or any other editor besides vim) with msysgit?
11 Answers
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Understanding scala enumerations
...cala enumeration classes. I can copy-paste the example from documentation, but I have no idea what is going on.
1 Answer
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Is the sizeof(some pointer) always equal to four?
...o other guarantees, including no guarantee that sizeof(int *) == sizeof(double *).
In practice, pointers will be size 2 on a 16-bit system (if you can find one), 4 on a 32-bit system, and 8 on a 64-bit system, but there's nothing to be gained in relying on a given size.
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How do I sort a list by different parameters at different timed
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I think your enum approach is basically sound, but the switch statements really need a more object oriented approach. Consider:
enum PersonComparator implements Comparator<Person> {
ID_SORT {
public int compare(Person o1, Person o2) {
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What is the difference between XML and XSD?
What is the difference between Extensible Markup Language (XML) and XML Schema (XSD)?
7 Answers
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Automatically capture output of last command into a variable using Bash?
I'd like to be able to use the result of the last executed command in a subsequent command. For example,
22 Answers
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