Reference types are ____ that contain methods.
A. objects
B. variables
C. classes
D. pointers
Answer: C
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Create a class Rational that represents a rational number. It should have private attributes for
• The numerator (an integer) • The denominator (an integer) and the following methods: • Rational(numerator, denominator)—a constructor for a rational number. • Accessor methods getNumerator and getDenominator and mutator methods setNumerator and setDenominator for the numerator and the denominator. You should use an exception to guarantee that the denominator is never zero.
Given the method heading public static void strange(int a, int b)and the declarationint[] alpha = new int[20];int[] beta = new int[25];Which of the following is a valid call to the method strange?
A. strange(alpha[10], alpha[15]); B. strange(alpha[5], beta); C. strange(alpha[0], beta[25]); D. strange(alpha, beta[20]);
Hop count is ___
a. The number of routers the data packet must pass through to reach the destination network b. A measure of the reliability of the link, typically in terms of the amount of errors c. The time it takes for a data packet to travel from source to destination d. The measured delay time in terms of clock ticks, where each tick is approximately 55 milliseconds (1?18 second)
In a data table each row is considered a(n) ________.
Fill in the blank(s) with the appropriate word(s).