Create a class named CollegeCourse that includes the following data fields: dept (String) - holds the department (for example, ENG) id (int) - the course number (for example, 101) credits (double) - the credits (for example, 3) price (double) - the fee for the course (for example, $360). All of the fields are required as arguments to the constructor, except for the fee, which is calculated at $120 per credit hour. Include a display() method that displays the cours data. Create a subclass named LabCourse that adds $50 to the course fee. Override the parent class display() method to indicate that the course is a lab course and
to display all the data. Write an application named UseCourse that prompts the
user for course information. If the user enters a class in any of the following
departments, create a LabCourse: BIO, CHM, CIS, or PHY. If the user enters any
other department, create a CollegeCourse that does not include the lab fee.
Then display the course data.

Q14 what is most important for you to choose before you build a network? a. private network b. nos c. network media d. network protocol e. directory service

Does read theory have answers keys ?

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?