...he corresponding servlets to avoid name clashes between beans. For example one servlet context will be serving the web pages and another will be implementing a stateless web service. This two level separation comes out of the box when you use the spring servlet classes: to configure the root applic...

...nked list while keeping the hare at meeting place, followed by moving both one step at a time make them meet at starting point of cycle? ...

... without having to hard-code its details. It allows messages to be invoked one or more times, or passed along to different parts of the system or multiple systems without requiring the details of a specific invocation to be known before execution. As is typical for design patterns, they do not req...

...he modal code could be loaded from a number a sources. Some of the common ones are: bootstrap.js (the full BootStrap JS suite) bootstrap.min.js (same as above, just minified) bootstrap-modal.js (the standalone plugin) a dependency loader, e.g., require('bootstrap') Debugging Tips A good place ...

... when it's necessary or useful to use a plain old Thread object instead of one of the above constructs? Sure. In precisely those cases where one of the higher-level constructs does not meet your needs. My advice is that if you find yourself in a situation where existing higher-abstraction tools ...

... elastic collision between the balls, you only need to worry about the component of the velocity that is in the direction of the collision. The other component (tangent to the collision) will stay the same for both balls. You can get the collision components by creating a unit vector pointing in the...

...Q, where it says: Why don’t you support annotation subtyping (where one annotation type extends another)? It complicates the annotation type system, and makes it much more difficult to write “Specific Tools”. … “Specific Tools” — Programs that query known anno...

...sider why you have so many constructors and consider reducing them to only one or two in the base class. The derived classes can then mask out some of them using constant values like null and only expose the necessary ones through their constructors. Update In C#4 you could specify default parameter...

... If you have two single column indexes, only one of them will be used in your example. If you have an index with two columns, the query might be faster (you should measure). A two column index can also be used as a single column index, but only for the column listed fi...

... I'm wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ? 6 ...