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.
Relational operators: Operators, like <, >, <=, >=, == and!=, which produce a Boolean outcome, as portion of a Boolean expression.
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A local car hire company has approached you to create a user-friendly computer program that will enable their hire operatives to send invoices to their customers. The operatives are not computer literate so a user-friendly, uncomplicated and robust interface is required. At presen
Pop-up menu: A menu of actions which is generally not visible on the screen till a mouse button is clicked. The Popup menus assist to keep a user interface from becoming cluttered.
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Continue statement: A statement which might only be employed within the body of a loop. In case of a while loop or do loop, control passes instantly to the loop's terminating test. In case of a for loop, the control passes to the post-body update expr
Peer: It is a term employed of the Abstract Windowing Toolkit (AWT) to refer to the underlying classes which give the platform-specific implementation of the component classes.
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