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What is the difference between class and instance attributes?
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Beyond performance considerations, there is a significant semantic difference. In the class attribute case, there is just one object referred to. In the instance-attribute-set-at-instantiation, there can be multiple objects referred t...
Rolling back a remote Git repository
I have a remote Git repository, and I need to roll back the last n commits into cold oblivion.
4 Answers
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Should I use int or Int32
...006 C# Language Specification (p18):
Each of the predefined types is shorthand for a system-provided type. For example, the keyword int refers to the struct System.Int32. As a matter of style, use of the keyword is favoured over use of the complete system type name.
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Difference between DTO, VO, POJO, JavaBeans?
...ary of what JavaBeans are:
JavaBeans are reusable software components for Java that can be manipulated visually in a builder tool. Practically, they are classes written in the Java programming language conforming to a particular convention. They are used to encapsulate many objects into a single...
Android 4.1: How to check notifications are disabled for the application?
Android 4.1 offers the user a check box to disable notifications for a specific application.
6 Answers
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What's the best CRLF (carriage return, line feed) handling strategy with Git?
...g with line endings.
Git allows you to set the line ending properties for a
repo directly using the text attribute in the
.gitattributes file. This file is committed into
the repo and overrides the core.autocrlf setting,
allowing you to ensure consistent behaviour for all
users regardl...
When to use wrapper class and primitive type
When I should go for wrapper class over primitive types? Or On what circumstance I should choose between wrapper / Primitive types?
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Convert List to List
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The way to make this work is to iterate over the list and cast the elements. This can be done using ConvertAll:
List<A> listOfA = new List<C>().ConvertAll(x => (A)x);
You could also use Linq:
List<A> listOfA = new List<...
Get list of a class' instance methods
...hod1/) # => ["method1"]
TestClass.methods.grep(/new/) # => ["new"]
Or you can call methods (not instance_methods) on the object:
test_object = TestClass.new
test_object.methods.grep(/method1/) # => ["method1"]
s...
What Every Programmer Should Know About Memory?
...g how much of Ulrich Drepper's What Every Programmer Should Know About Memory from 2007 is still valid. Also I could not find a newer version than 1.0 or an errata.
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