Latest Answer: Virtual destructor has the same concept as a virtual function.To decide at runtime, depending on the...

Latest Answer: At the time of constructing the object the type is given as input (B *ptr = new D) here it is clearl... Latest Answer: All virtual functions have late binding. All non-virtual functions will have early binding.Early bin... See similar questions...

least in Ada 9X, functions with controlling results are inherited (even if overriding is required), allowing their use with dynamic binding and class-wide types. In most other OOPs, constructors can only be called if you know at compile time the "tag" (or equivalent) of the result you want. In Ada 9X, you can use the tag determined by the context to control dispatching to a function with a controlling result. See similar questions...

Long answer: suppose the "most derived" class is D, meaning the actual object that was originally created was of class D, and that D inherits multiply (and non-virtually) from B1 and B2. The sub-object corresponding to most-derived class D runs first, followed by the dtors for its non-virtual base classes in reverse declaration-order. Thus the destructor order will be D, B2, B1. See similar questions...

No. They look the same but they are very different. The C# destructor syntax (with the familiar ~ character) is just syntactic sugar for an override of the System.Object Finalize method. This Finalize method is called by the garbage collector when it determines that an object is no longer referenced, before it frees the memory associated with the object. So far this sounds like a C++ destructor. The difference is that the garbage collector makes no guarantees about when this procedure happens. See similar questions...

Very similar, but there are some significant differences. First, C# supports constructor chaining. This means one constructor can call another: class Person { public Person( string name, int age ) { ... } public Person( string name ) : this( name, 0 ) {} public Person() : this( "", 0 ) {} } Another difference is that virtual method calls within a constructor are routed to the most derived implementation - see Can I Call a virtual method from a constructor. See similar questions...

Destructors are used to release any resources allocated by the object. E.g., class Lock might lock a semaphore, and the destructor will release that semaphore. The most common example is when the constructor uses new, and the destructor uses delete. Destructors are a "prepare to die" member function. They are often abbreviated "dtor". See similar questions...

Constructors are like "init functions". They turn a pile of arbitrary bits into a living object. Minimally they initialize internally used fields. They may also allocate resources (memory, files, semaphores, sockets, etc). See similar questions...

this() is used to invoke a constructor of the same class. super() is used to invoke a superclass constructor. A method's throws clause must declare any checked exceptions that are not caught within the body of the method. The JDK 1.02 event model uses an event inheritance or bubbling approach. In this model, components are required to handle their own events. If they do not handle a particular event, the event is inherited by (or bubbled up to) the component's container. See similar questions...

Virtual colonoscopy is a FDA approved, non-invasive procedure, which screens for colorectal cancer. Virtual colonoscopy uses a state-of-the-art simulation program to reconstruct abdominal computed tomography (CT) images into a three-dimensional (3D) replica model of the colon. A radiologist, with advanced training, uses the 3D simulated images to navigate your colon in order to identify tumors and pre-cancerous polyps. See similar questions...

Virtual Memory makes up for the lack of RAM in computers by using space on the hard disk as memory, Virtual Memory. When the actual RAM fills up (actually its before the RAM fills) then virtual memory is created on the hard disk. When physical memory runs out, the Virtual Memory Manager chooses sections of memory that have not been recently used and are of low priority and writes them to the swap file. See similar questions...

Java objects are not explicitly deleted and do not have destructors. Instead they are implicitly garbage collected when the JVM realises your program can no longer access them. Typically this technology is _not_ based on reference counting and _will_ cope with circular references. Every object has a routine called finalize() which will be called before the object is collected. This is Java's nearest equivalent to C++'s destructor. See similar questions...

Yes. Any constructor who fails to turn up at an event may be fined several hundred thousand dollars per event and per car, except in the case of force majeure (but the FIA is very strict when it comes to defining a case of force majeure). A constructor may not join the championship during the season. See similar questions...

The "chaining" of one stream to another to achieve the desired result. (Given a requirement, you should be able to choose the best possible way to chain streams together.) Different character encodings, and the IO classes capable of making use of the encoding specifications. The DataInput/DataOutput streams. (How data is written/read back from these streams. How many bytes are actually read/written by different overloaded read() and write() methods. See similar questions...

No, constructors are not inherited. For more information about constructors and constructor chaining, see my article on constructors. See similar questions...

If a constructor throws an exception, the object's destructor is not run. If your object has already done something that needs to be undone (such as allocating some memory, opening a file, or locking a semaphore), this "stuff that needs to be undone" must be remembered by a data member inside the object. See similar questions...

Java programming language objects are not explicitly deleted and do not have destructors. Instead they are implicitly garbage collected when the JVM realizes your program can no longer access them. This technology is not based on reference counting and will cope with circular references. Every object has a routine called finalize() which will be called before the object is collected. This is the nearest equivalent to C++'s destructor. See similar questions...

A class's destructor (whether or not you explicitly define one) automagically invokes the destructors for member objects. They are destroyed in the reverse order they appear within the declaration for the class. A derived class's destructor (whether or not you explicitly define one) automagically invokes the destructors for base class subobjects. Base classes are destructed after member objects. See similar questions...

Virtual Colonoscopy (CT Colonoscopy) is the evaluation of the colon utilizing CT. After cleansing the colon the exam is preformed by distending the colon with air and scanning the abdomen and pelvis. The images are “reconstructed” in multiple planes and interpreted by the radiologist. This technique is effective for detecting cancer and polyps greater than 1cm in size. This procedure is faster and less expressive than conventional colonoscopy and does not require sedation. See similar questions...