... Identify and type section rename existing class in "name" field. That's all! Previously I manually rename the class name in the class file. share | improve this answer | f...

...Ruby class in Ruby 1.9. These are incredibly useful. In Ruby 1.9, if you call almost any iterator method on the core classes, without passing a block, it will return an Enumerator. irb(main):001:0> [1,2,3].reverse_each => #<Enumerator: [1, 2, 3]:reverse_each> irb(main):002:0> "abc"....

... Yeah, if doing this with an object, all the variables will be aliases of the object. I.E function MyObj(){this.x=1} var a,b; a = b = new MyObj(); ++a.x will also increment the b.x property. – AlexMorley-Finch Mar 10 '14 at...

... Basically performSelector allows you to dynamically determine which selector to call a selector on the given object. In other words the selector need not be determined before runtime. Thus even though these are equivalent: [a...

...data be loaded in a certain order: the root URL, then the schemas, then finally initialize the application with the schemas and urls for the various data objects. As the user navigates the application, data objects are loaded, validated against the schema, and displayed. As the user CRUDs the data...

...LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section it is in. I'd store an array of booleans corresponding the the "expended" value of each of your sections. Then you could have the tableView:didSelectRowAtIndexPath on each of your custom h...

I have been lately reading a lot on memory allocation schemes in java, and there have been many doubts as I have been reading from various sources. I have collected my concepts, and I would request to go through all of the points and comment on them. I came to know that memory allocation is JVM spec...

...e, whereas the second one matches one or many whitespaces. They're the so-called regular expression quantifiers, and they perform matches like this (taken from the documentation): Greedy quantifiers X? X, once or not at all X* X, zero or more times X+ X, one or more times X{n} X, exactly n ti...

... What's happening here is called aggregate initialization. Here is the (abbreviated) definition of an aggregate from section 8.5.1 of the ISO spec: An aggregate is an array or a class with no user-declared constructors, no private or protected non...

...the type hierarchy you describe: Single Table Inheritance: one table for all Product types, with enough columns to store all attributes of all types. This means a lot of columns, most of which are NULL on any given row. Class Table Inheritance: one table for Products, storing attributes common to...