The JOptionPane dialog icon typically used to caution the user against potential problems is the ____________.
a) stop sign
b) exclamation point
c) letter i
d) question mark
b) exclamation point
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Given the class below, tell to what value the default constructor initializes the data member. Name this initialization technique and give another way to write the constructor.
What will be an ideal response? ``` class A { public: A(); private: int a; }; A::A() : a(17) { //deliberately empty } ```
The format specifier ________ is used to output values of type float or double.
a. %f b. %d c. %fd d. %r
Which of the following devices does NOT use a sound card to connect to a computer?
A) iPad B) Microphone C) Headphones D) Speakers
Which ping command option forces the ping command to send packets without displaying statistics onscreen until after the ping has stopped?
A. -c n B. -f C. -q D. -w n