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Scheduled maintenance: August 3, 2024 from 01:00 PM to 02:00 PM
Science Computer Science
Assignment 2: Theory solutions
Jeremiah
Terms in this set (18)
The public keyword is used to declare a member variable or function that may be
directly accessed from outside the class.
What is the purpose of the keywords public
The private keyword is used to declare a member variable or function that cannot be
and private in the class declaration?
directly accessed from outside the class. These members can only be
accessed/modified with the use of an accessor/mutator function.
A class is a user defined type that defines a collection of properties and methods which
What is the difference between a class and
can be accessed by creating an instance of that class.
an object?
An object is an instance of a class. It is usually a real-world entity.
Instantiating an object is when we create an instance of an object. The object is given a
What does it mean to 'instantiate' an object?
name and created in memory.
What is the purpose of a constructor? A constructor is used to initialize an object when it is created.
Both have the same name that matches the class name,
What is the difference between the default A default constructor is one that takes no parameters and is automatically generated if
constructor and the overloaded the user doesn't define one. It is used to assign default values to the member variables.
constructor? An overloaded constructor takes one or more parameters that assign custom values to
the member variables.
A destructor is used to free up resources used by an object, it deallocates the memory
What is the purpose of a destructor?
and performs other cleanup actions.
What is the purpose of an accessor? An accessor is used to access/read private class data from outside the class.
What is the purpose of a mutator? A mutator is used to modify/set/change private class data from outside the class.
A scope resolution operator can be used to:
What is the purpose of the scope resolution • Access a global variable when there is a local variable with the same name
operator? • Define a class function from outside the class
• Access a class's static variables
Assignment 2: Theory solutions
1/2
Scheduled maintenance: August 3, 2024 from 01:00 PM to 02:00 PM
Science Computer Science
Assignment 2: Theory solutions
Jeremiah
Terms in this set (18)
The public keyword is used to declare a member variable or function that may be
directly accessed from outside the class.
What is the purpose of the keywords public
The private keyword is used to declare a member variable or function that cannot be
and private in the class declaration?
directly accessed from outside the class. These members can only be
accessed/modified with the use of an accessor/mutator function.
A class is a user defined type that defines a collection of properties and methods which
What is the difference between a class and
can be accessed by creating an instance of that class.
an object?
An object is an instance of a class. It is usually a real-world entity.
Instantiating an object is when we create an instance of an object. The object is given a
What does it mean to 'instantiate' an object?
name and created in memory.
What is the purpose of a constructor? A constructor is used to initialize an object when it is created.
Both have the same name that matches the class name,
What is the difference between the default A default constructor is one that takes no parameters and is automatically generated if
constructor and the overloaded the user doesn't define one. It is used to assign default values to the member variables.
constructor? An overloaded constructor takes one or more parameters that assign custom values to
the member variables.
A destructor is used to free up resources used by an object, it deallocates the memory
What is the purpose of a destructor?
and performs other cleanup actions.
What is the purpose of an accessor? An accessor is used to access/read private class data from outside the class.
What is the purpose of a mutator? A mutator is used to modify/set/change private class data from outside the class.
A scope resolution operator can be used to:
What is the purpose of the scope resolution • Access a global variable when there is a local variable with the same name
operator? • Define a class function from outside the class
• Access a class's static variables
Assignment 2: Theory solutions
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