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Is it wrong to use Deprecated methods or classes in Java?
...ting warnings at some places that methods are deprecated, but the code is working fine.
15 Answers
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How to create custom exceptions in Java? [closed]
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To define a checked exception you create a subclass (or hierarchy of subclasses) of java.lang.Exception. For example:
public class FooException extends Exception {
public FooException() { super(); }
public FooException(String message) { super(message); }
public FooExcep...
AngularJS : Difference between the $observe and $watch methods
...serve('attr1', ...).
(If you try scope.$watch(attrs.attr1, ...) it won't work because of the {{}}s -- you'll get undefined.) Use $watch for everything else.
$watch() is more complicated. It can observe/watch an "expression", where the expression can be either a function or a string. If the expr...
How to name factory like methods?
I guess that most factory-like methods start with create . But why are they called " create "? Why not " make ", " produce ", " build ", " generate " or something else? Is it only a matter of taste? A convention? Or is there a special meaning in "create"?
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Swift native base class or NSObject
I tested out some isa swizzling with Swift, and found that it only works when NSObject is a super-class (directly or further up), or by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++.
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What is better, adjacency lists or adjacency matrices for graph problems in C++?
What is better, adjacency lists or adjacency matrix, for graph problems in C++?
What are the advantages and disadvantages of each?
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Can you explain the concept of streams?
...m is a representation of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with?
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Why does Maven have such a bad rep? [closed]
...internet about how Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management.
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PHP mail function doesn't complete sending of e-mail
I've tried creating a simple mail form. The form itself is on my index.html page, but it submits to a separate "thank you for your submission" page, thankyou.php , where the above PHP code is embedded.
The code submits perfectly, but never sends an email. How can I fix this?
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FirstOrDefault: Default value other than null
As I understand it, in Linq the method FirstOrDefault() can return a Default value of something other than null. What I haven't worked out is what kind of things other than null can be returned by this (and similar) method when there are no items in the query result. Is there any particular wa...