Which of the following statements is false?
a. A reference to an object is required to invoke an object’s methods.
b. A primitive-type variable does not refer to an object.
c. Reference-type instance variables are initialized by default to the value void.
d. A primitive-type variable cannot be used to invoke a method.
c. Reference-type instance variables are initialized by default to the value void.
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C++ is a(n) ________ programming language because you can define new class types as needed.
a. strongly typed b. extensible c. inextensible d. None of the above.
To have a global positioning system that works in three dimensions from anywhere in the world, a minimum of 24 satellites, orbiting the earth in 6 different orbits, are needed
Indicate whether the statement is true or false
You use ____ to improve the performance of your programs.
A. icons B. multithreading C. interfaces D. object dictionaries
____ transmission means that to receive and transmit a signal, each antenna must be in sight of the next antenna.?
A. ?Uplink B. ?Omnidirectional C. ?Line-of-sight D. ?Downlink