Software engineering provides a methodical way to build computer programs.

Answer the following statement true (T) or false (F)


True

Computer Science & Information Technology

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Which of the following code fragments gives a random double value between 2 and 5 inclusive? You can assume that the random number seed has been set and any needed definitions and initializations have been made.

a. 3.0*rand() + 2 b. 3.0*(RAND_MAX-rand())/RAND_MAX + 2 c. ((RAND_MAX-rand())/static_cast(RAND_MAX))*3 + 2 d. (RAND_MAX-rand())/static_cast(RAND_MAX)*5 -2 e. rand()/static_cast(RAND_MAX)*2 + 3

Computer Science & Information Technology

Develop a C# app that will determine whether any of several de- partment-store customers has exceeded the credit limit on a charge account. For each customer, the following facts are available:

a) account number, b) balance at the beginning of the month, c) total of all items charged by the customer this month, d) total of all credits applied to the customer’s account this month and e) allowed credit limit. The app should input all these facts as integers, calculate the new balance (= beginning balance + charges – credits), display the new balance and determine whether the new balance exceeds the cus- tomer’s credit limit. For those whose credit limit is exceeded, the app should display the message "Credit limit exceeded". Use sentinel-controlled iteration to obtain the data for each account.

Computer Science & Information Technology

What shape is the mouse pointer when the user can change the size and shape of an item?

A) Straight line without arrows B) Two-headed arrow C) Cross bar D) One-headed arrow

Computer Science & Information Technology

For a hash table with five slots, and using chaining to resolve collisions what does the inserted sequence: 35, 2, 18, 6, 3, 10, 8, 5 look like in the hash table for the hash function h(x) = x % 5?

a. [ (35, 10, 5) , (6), (2), (3,8) , () ] b. [ (5, 10, 35) , (2,6) , (3,8) , () ] c. [ (3, 5, 6), (10), (35), () ] d. [ (3), (5,6), (8, 10), (35) ]

Computer Science & Information Technology