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Preferred Java way to ping an HTTP URL for availability
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Is this any good at all (will it do what I want?)
You can do so. Another feasible way is using java.net.Socket.
public static boolean pingHost(String host, int port, int timeout) {
try (Socket socket = new Socket()) {
socket.conne...
How different is Objective-C from C++? [closed]
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Short list of some of the major differences:
C++ allows multiple inheritance, Objective-C doesn't.
Unlike C++, Objective-C allows method parameters to be named and the method signature includes only the names and types of the parameters and return type (see bbum's and Chuck...
What's the fuss about Haskell? [closed]
...eems to love that language. Being good at Haskell seems somewhat like the hallmark of a genius programmer.
17 Answers
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Recommended website resolution (width and height)? [closed]
... 1024x768 screen is about 960 pixels. Some tools are based on a slightly smaller size, about 940. This is the default container width in twitter bootstrap.
Don't design for one size. Window sizes vary. Don't assume screen size equals windows size. Design for a reasonable minimum, but assume it will...
When should we use Observer and Observable?
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In very simple terms (because the other answers are referring you to all the official design patterns anyway, so look at them for further details):
If you want to have a class which is monitored by other classes in the ecosystem of your program you say that you want the class to be observable...
Sending email with PHP from an SMTP server
... you are sending an e-mail through a server that requires SMTP Auth, you really need to specify it, and set the host, username and password (and maybe the port if it is not the default one - 25).
For example, I usually use PHPMailer with similar settings to this ones:
$mail = new PHPMailer();
// ...
Git in Powershell saying 'Could not find ssh-agent'
I have git installed and it works great in the command prompt, but when I open up powershell it gives me this warning:
6 An...
Use of Finalize/Dispose method in C#
...able pattern is here. When programming a class that uses IDisposable, generally you should use two patterns:
When implementing a sealed class that doesn't use unmanaged resources, you simply implement a Dispose method as with normal interface implementations:
public sealed class A : IDisposable
{
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Software Design vs. Software Architecture [closed]
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Also, architecture usually deals with what (is done) and where (it's done), but never with how. That is think is the principle difference - design completes the how that architecture doesn't (and shouldn't) talk about.
– Asaf...
How to get back to most recent version in Git?
...ch. So does that mean that when I check out a previous version, I'm essentially creating a branch?
– Nathan Long
Aug 24 '10 at 17:19
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