Exam 10: Classes and Data Abstraction

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

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

To create the object code file for any source code file,the command line option ____________________ is used on the system command line.

You can use arithmetic operators to perform arithmetic operations on class objects.

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

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.

Figure 2: class rectangleType { public: $\quad$ void setLengthWidth(double x, double y); $\quad$$\quad$ //Postcondition: length = x; width = y; $\quad$ void print() const; $\quad$$\quad$ //Output length and width; $\quad$ double area(); $\quad$$\quad$ //Calculate and return the area of the rectangle; $\quad$ double perimeter(); $\quad$$\quad$ //Calculate and return the parameter; $\quad$$\quad$ rectangleType(); $\quad$$\quad$ //Postcondition: length = 0; width = 0; $\quad$ rectangleType(double x, double y); $\quad$$\quad$ //Postcondition: length = x; width = y; private: $\quad$ double length; $\quad$ double width; }; -Consider the accompanying class definition,and the object declaration: rectangleType bigRect(14,10); Which of the following statements is correct?

-Consider the accompanying class and member functions definitions in Figure 3.How many constructors are present in the class definition above?

To guarantee that the member variables of a class are initialized,you use ____.

Figure 1: -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.