During testing, developers usually use a physical device such as a smartphone or tablet to display the output of? their app.
Answer the following statement true (T) or false (F)
False
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Class Array’s ________ method is used to create a Stream from an array of objects.
a. stream b. arrayToStream c. createStream d. objectToStream
Attempting to access an array element outside of the bounds of an array, causes a(n) .
a. ArrayOutOfBoundsException. b. ArrayElementOutOfBoundsException. c. ArrayIndexOutOfBoundsException. d. ArrayException.
What is meant by implied display? Is it available in the Python interactive shell or from a program file? Provide a simple example of implied display.
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. It is useful to define a class for which no objects may be defined. 2. It is legal to have all member functions of a class be pure virtual functions. 3. A derived class destructor always invokes the base class destructor. 4. The base class destructor must be virtual. 5. This is legal code. ``` class B { public: // . . . virtual void f() = 0; }; int main() { B b1, b2; /*. . .*/ } ```