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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...ng Eclipse, you can find instructions in How do I import the javax.servlet API in my Eclipse project?
Testing the servlet individually
Provided that the server runs on localhost:8080, and that the WAR is successfully deployed on a context path of /contextname (which defaults to the IDE project nam...
GridLayout and Row/Column Span Woe
...
Starting from API 21, the GridLayout now supports the weight like LinearLayout. For details please see the link below:
https://stackoverflow.com/a/31089200/1296944
...
Scala type programming resources
...very active project that is providing functionality that extends the Scala API using various type-level programming features. It is a very interesting project that has a big following.
MetaScala is a type-level library for Scala, including meta types for natural numbers, booleans, units, HList, etc...
How to pass objects to functions in C++?
... not supposed to write back a value. This convention is seen in many glibc APIs. Example:
void func (string* str, /* ... */) {
if (str != NULL) {
*str = some_value; // assign to *str only if it's non-null
}
}
Just like all pass by reference/pointer, not thread-safe.
...
How to highlight text using javascript
...n[i];
// https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
if (cur.nodeType === Node.TEXT_NODE)
{
this.checkAndReplace(cur);
}
else if (cur.nodeType === Node.ELE...
Understanding the Rails Authenticity Token
...tain the correct authenticity token, and will not be allowed to continue.
API docs describes details about meta tag:
CSRF protection is turned on with the protect_from_forgery method,
which checks the token and resets the session if it doesn't match what
was expected. A call to this method ...
How is Docker different from a virtual machine?
...the kernel knows the namespace that was assigned to the process and during API calls it makes sure that the process can only access resources in its own namespace.
The limitations of containers vs VMs should be obvious now: You can't run completely different OSes in containers like in VMs. However y...
Read/write to Windows registry using Java
... USE ANY 3rd PARTY/EXTERNAL APPLICATIONS TO WORK.
DOES NOT USE THE WINDOWS API (directly)
This is pure, Java code.
It uses reflection to work, by actually accessing the private methods in the java.util.prefs.Preferences class. The internals of this class are complicated, but the class itself is v...
Why C# fails to compare two object types with each other but VB doesn't?
...n C#’s dynamic feature, though (because that relies on a well-documented API). Here’s what the MSDN says:
Because Option Strict On provides strong typing, prevents unintended type conversions with data loss, disallows late binding, and improves performance, its use is strongly recommended.
...
Is cout synchronized/thread-safe?
...nesD : We're in agreement there -- it's synchronized with the underlying C API. My point is that it's not "synchronized" in a useful manner, i.e. one still needs manual synchronization if they don't want garbage data.
– ildjarn
Jun 16 '11 at 18:35
...