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COP 4530 final Question and answers 100% correct 2024

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COP 4530 final Question and answers 100% correct 2024 COP 4530 final Classes- Information Hiding Labels - correct answer public, private, protected Classes- Object - correct answer An instance of class Classes- Members can be? - correct answer Data/variables, Functions/Methods Cl...

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  • September 7, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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COP 4530 final
Classes- Information Hiding Labels - correct answer ✔public, private,
protected


Classes- Object - correct answer ✔An instance of class


Classes- Members can be? - correct answer ✔Data/variables,
Functions/Methods


Classes- A parameter to a constructor optional - correct answer ✔True-
default parameters


Classes- Initializer list - correct answer ✔Initialization list is used to initialize
the data members directly


Classes- Explicit Constructor - correct answer ✔Avoids automatic type
conversion


Classes- Constant member functions (accessor) - correct answer ✔A
member function that examines but does not change the state of its object,
const functions


Classes- Constant member functions (mutators) - correct answer ✔A
member function that changes the state of its object, non-const functions


Interface - correct answer ✔#include in .cpp files

,Benefits of Preprocessor commands - correct answer ✔Guards against
multiple inclusion of .h files


Scope-resolution operator - correct answer ✔:: symbol, used to identify the
class corresponding to each function


True or False: Function signatures must match in both interface and
implementation - correct answer ✔true


Default parameters are specified only in the __________ - correct answer
✔interface


Legal or illegal object declarations
- IntCell obj3=37;
- IntCell obj4(); - correct answer ✔Illegal


Legal or illegal object declarations
- IntCell obj1;
- IntCell obj2(12); - correct answer ✔Legal


New object declarations supported in c++ 11 - correct answer ✔- IntCell
obj5{12}
- IntCell obj6{}


Initialize a vector - correct answer ✔vector<int> squares(100)


Standard string class - correct answer ✔compared with ==, <, ect, can be
assigned using =, and gives length () functions

, Initialization of vectors using {} - correct answer ✔vector<int> vec1={1, 2, 3};
vector<int> vec2{1, 2, 3};


What does vector<int> vec3(12); do? - correct answer ✔specifying size of
the vector


What does vector<int> vec4{12}; do? - correct answer ✔value initialization


Range-based for loop
(squares, int x) - correct answer ✔for (int x : squares) {
}


Keyword auto - correct answer ✔do not need to specify the type
auto i=20;


Pointer variable - correct answer ✔Stores the address of another object/data
in memory


Declaration of a pointer - correct answer ✔* before the variable name


Address- of operator & - correct answer ✔&obj gives the address where obj
is stored


Dynamic object creations - correct answer ✔Using the new keyword

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