A double typically requires the retrieval of ____________________ bytes of storage.

Fill in the blank(s) with the appropriate word(s).

eight
8

Computer Science & Information Technology

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When deleting a node from a binary search tree that has two children, the reason we can replace its element with the greatest value in its left subtree is because:

A. the value will become greater or equal to the values of its children B. the value will be greater than everything on its left, and since it was in the left subtree, it will be less than everything in the right subtree C. Both A and B D. Neither A nor B

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Computer Science & Information Technology

Analyze the following code:

``` public class Test { public static void main(String[] args) { Object a1 = new A(); Object a2 = new Object(); System.out.println(a1); System.out.println(a2); } } class A { int x; @Override public String toString() { return "A's x is " + x; } }``` a. The program cannot be compiled, because System.out.println(a1) is wrong and it should be replaced by System.out.println(a1.toString()); b. When executing System.out.println(a1), the toString() method in the Object class is invoked. c. When executing System.out.println(a2), the toString() method in the Object class is invoked. d. When executing System.out.println(a1), the toString() method in the A class is invoked.

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Computer Science & Information Technology

Here is a small program. Which of the statements about the variables is correct?

``` #include const double NUM = 2.9345358; double num = 3; double numTimes(int x); int main( ) { using namespace std; int value; cout << “Enter a value, I’ll multiply it by “ << NUM << endl; cin >> value; cout << “You entered “ << value << “ NUM times this is “ << numTimes(value) << endl; return 0; } double numTimes(int x) { double d; d = NUM * x; return d; } ``` a) NUM is a global variable. b) num is a global constant. c) value is local variable in the main function d) d is a local variable in the numTimes function.

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Computer Science & Information Technology

The design of products and environments to be usable by all people, to the greatest extent possible, without the need for adaptation or specialized design is called:

a. accessibility b. usability c. universal design d. assistive technology

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Computer Science & Information Technology