Explain the COM components
Explain the COM components?
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It evolved as this while u write a CLASS to reuse within a application, numerous instances of the class exists along with each instance of application, subsequently u want to ignore it to make a class and put this in DLL now only one example exists though numerous instances of applications exists Application requires to be recompiled while DLL is modified, therefore came COM.
COM is independent component which internally handles networking and resources COM utilizes IDL to communicate to various languages.
If-else statement: It is a control structure employed to select between performing one of two alternative events. if(boolean-expression){ // Statem
Explain Downcast with example: It is a cast towards an object's dynamic kind - that is, `down' the inheritance hierarchy. For illustration: // Downcast from Object to String
File system: The operating system makes it possible to utilize space on a computer's disk drives by imposing a structured file system on disk storage. Each and every file system contains its own conventions for the manner in which the files are named,
Bit manipulation operator: Operators, like &, | and ^, which are employed to examine and manipulate individual bits win the bytes of a data item. The shift operators, <<, >> and >>>, are too bit manipulation operators.
Implements clause: That part of a class header which points out which interfaces are applied by the class. A class might implement for more than one interface.
Daemon thread: The daemon threads are non-user threads. They are usually employed to carry out low-priority tasks which must not take priority over the major task of the program. They can be employed to do helpful work whenever all other user threads
State the term XLL? Answer: The specification of XML Link Language has XPointer or XLink.
Primitive type: Java's eight standard non-class types are the primitive types as: Boolean, byte, char, float, int, double, long and short.
What do you mean by the term set up time and hold time constraints? Explain what do they mean? Which one is vital for estimating the maximum clock frequency of the circuit?
Icon: It is an image intended to communicate the language-or culturally-independent meaning.
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