Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Types of Function
A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can wri…
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15. If you write a function that should use call-by-reference, but forget to include the ampersand, * The program will not compile The program will not link The program will show a run-time error O The program will run with incorrect results 16. Which of the following statements correctly prints out the value that is in the memory address that the pointer p1 is pointing to? * cout << &p1; cout << p1; O cout << int* p1; O cout << *p1; 17. Polymorphism refers to * the ability to assign multiple meanings to one function name. O overriding base class functions. overloading functions O none of the above
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Transcribed Image Text:15. If you write a function that should use call-by-reference, but forget to include the ampersand, * The program will not compile The program will not link The program will show a run-time error O The program will run with incorrect results 16. Which of the following statements correctly prints out the value that is in the memory address that the pointer p1 is pointing to? * cout << &p1; cout << p1; O cout << int* p1; O cout << *p1; 17. Polymorphism refers to * the ability to assign multiple meanings to one function name. O overriding base class functions. overloading functions O none of the above
18. Using inheritance allows us to * eliminate duplicate code make our classes more modular use polymorphism O all of the above 19. If the member variables in a base class are private, then * they can be directly accessed or changed in the derived class the derived class must use any queries or update functions from the base class making them private causes a syntax error. O you must declare them in the derived class also. 20. When a throw statement is executed, * execution of the try block stops O execution of the throw block stops the program always exits O execution of the catch block stops
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Transcribed Image Text:18. Using inheritance allows us to * eliminate duplicate code make our classes more modular use polymorphism O all of the above 19. If the member variables in a base class are private, then * they can be directly accessed or changed in the derived class the derived class must use any queries or update functions from the base class making them private causes a syntax error. O you must declare them in the derived class also. 20. When a throw statement is executed, * execution of the try block stops O execution of the throw block stops the program always exits O execution of the catch block stops
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