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Do I really have a car in my garage? [duplicate]
...stract int getPriceAfterYears(int years);
}
Every Vehicle has a price so it can be put inside the Vehicle abstract class.
Yet, the formula determining the price after n years depends on the vehicle, so it left to the implementing class to define it. For instance:
public Car extends Vehicle {
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Differences between socket.io and websockets
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Its advantages are that it simplifies the usage of WebSockets as you described in #2, and probably more importantly it provides fail-overs to other protocols in the event that WebSockets are not supported on the browser or se...
RESTful web service - how to authenticate requests from other services?
...secret. I also don't like the hard-coded user-name and password option but it does have the benefit of being quite simple. The client certificate is also good but is it really much different? There's a cert on the server and one on the client. It's main advantage is that it's harder to brute force. ...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
The Enum class is Serializable so there is no problem to serialize object with enums. The other case is where class has fields of java.util.Optional class. In this case the following exception is thrown: java.io.NotSerializableException: java.util.Optional
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How to take screenshot with Selenium WebDriver
Does anyone know if it's possible to take a screenshot using Selenium WebDriver? (Note: Not Selenium RC)
45 Answers
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How to send password securely over HTTP?
If on a login screen user submits a form with his username and password, the password is sent in plain text (even with POST, correct me if I am wrong).
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How can I lookup a Java enum from its String value?
I would like to lookup an enum from its string value (or possibly any other value). I've tried the following code but it doesn't allow static in initialisers. Is there a simple way?
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Creating an API for mobile applications - Authentication and Authorization
I'm looking to create a (REST) API for my application. The initial/primary purpose will be for consumption by mobile apps (iPhone, Android, Symbian, etc). I've been looking into different mechanisms for authentication and authorization for web-based APIs (by studying other implementations). I've ...
How to Calculate Execution Time of a Code Snippet in C++
I have to compute execution time of a C++ code snippet in seconds. It must be working either on Windows or Unix machines.
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Facebook Post Link Image
...ain URLs though (including mine), FB doesn't seem to pick up anything, despite their being a number of images on that page.
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