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Can “this” ever be null in Java?
...lass method and my first reaction was to ridicule the developer that wrote it.. But then, I figured I should make sure I was right first.
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Why is the clone() method protected in java.lang.Object?
...he fact that the clone method is not declared in the Cloneable interface.
It makes the method pretty useless for taking copies of data because you cannot say:
if(a instanceof Cloneable) {
copy = ((Cloneable) a).clone();
}
I think that the design of Cloneable is now largely regarded as a mist...
How does #include work in C++? [duplicate]
I have read from a codeforces blog that if we add #include <bits/stdc++.h> in a C++ program then there is no need to include any other header files. How does #include <bits/stdc++.h> work and is it ok to use it instead of including individual header files?
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What is the difference between integration and unit tests?
I know the so-called textbook definition of unit tests and integration tests. What I am curious about is when it is time to write unit tests... I will write them to cover as many sets of classes as possible.
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Call a Server-side Method on a Resource in a RESTful Way
... RESTful design?
The RESTful principles bring the features that make web sites easy (for a random human user to "surf" them) to the web services API design, so they are easy for a programmer to use. REST isn't good because it's REST, it's good because it's good. And it is good mostly because it is ...
Why shouldn't I use “Hungarian Notation”?
...o - giving information about a variable, parameter, or type as a prefix to its name. Everyone seems to be rabidly against it, even though in some cases it seems to be a good idea. If I feel that useful information is being imparted, why shouldn't I put it right there where it's available?
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What does an exclamation mark mean in the Swift language?
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What does it mean to "unwrap the instance"? Why is it necessary?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, whic...
What is the difference between “instantiated” and “initialized”?
... are reference types.
Parts of a Variable
There is the variable name and it's value. Two parts.
The variable's name is what you declare it to be. The value is what you assign to it.
Variables are Initialized
All variables are always given an initial value at the point the variable is declared. ...
Does JavaScript have the interface type (such as Java's 'interface')?
I'm learning how to make OOP with JavaScript . Does it have the interface concept (such as Java's interface )?
13 Answer...
What Ruby IDE do you prefer? [closed]
I've been using Eclipse with RDT (not RadRails) a lot lately, and I'm quite happy with it, but I'm wondering if you guys know any decent alternatives. I know NetBeans also supports Ruby these days, but I'm not sure what it has to offer over Eclipse.
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