Exam 10: Classes and Data Abstraction

A(n) ____________________ is a statement specifying the condition(s) that must be true before the function is called.

A member function of a class that only accesses the value(s) of the data member(s) is called a(n) ____ function.

A class object can be ____. That is, it is created each time the control reaches its declaration, and destroyed when the control exits the surrounding block.

A destructor has the character ____, followed by the name of the class.

A class is an example of a structured data type.

A(n) ____________________ statement is required by any program that uses a header class file, as well as by the implementation file that defines the operations for that class.

If a member of a class is ____, you cannot access it outside the class.

The public members of a class must be declared before the private members.

class rectangleType { public: void setLengthWidth(double x, double y); //Postcondition: length = x; width = y; void print() const; //Output length and width; double area(); //Calculate and return the area of the rectangle; double perimeter(); //Calculate and return the parameter; rectangleType(); //Postcondition: length = 0; width = 0; rectangleType(double x, double y); //Postcondition: length = x; width = y; private: double length; double width; }; -Consider the accompanying class definition, and the object declaration: rectangleType bigRect(14,10); Which of the following statements is correct?

In C++, you can pass a variable by reference and still prevent the function from changing its value by using the keyword ____ in the formal parameter declaration.

As parameters to a function, class objects can be passed by reference only.

If the heading of a member function of a class ends with the word const, then the function member cannot modify the private member variables, but it can modify the public member variables.

A ____ sign in front of a member name on a UML diagram indicates that this member is a public member.

-The word ____ at the end of the member functions in the accompanying class clockType in Figure 1 specifies that these functions cannot modify the member variables of a clockType object.

In C++, class is a reserved word and it defines only a data type.

Object code is produced from a(n) ____________________.

The components of a class are called the ____ of the class.

How many destructors can a class have?

In C++, the scope resolution operator is ____.

Non-static member variables of a class are called the ____________________ variables of the class.