Consider the method getHours, which is intended to calculate the number of hours that a vehicle takes to travel between two mile markers on a highway if the vehicle travels at a constant speed of 60 miles per hour. A mile marker is a sign showing the number of miles along a road between some fixed location (for example, the beginning of a highway) and the current location. The following table shows two examples of the intended behavior of getHours, based on the int parameters marker1 and marker2. marker1 marker2 Return Value
100 220 2.0
100 70 0.5
Consider the following implementation of getHours.
public static double getHours(int marker1, int marker2) { /* missing statement */ return hours; }
Which of the following statements can replace /* missing statement */ so getHours works as intended?
A. double hours = (Math. abs (markerl) - Math. abs (marker2)) / 60.0;
B. double hours = Math. abs (markeri - marker2 / 60.0)
C. double hours = Math. abs (marker1 - marker2) / 60.0;
D. double hours = Math. abs((markeri - marker2) / 60);
E. double hours = (double) (Math. abs (marker1 - marker2) / 60);

Requirement types discussed during software development include functional and color scheme nonfunctional and code style constraint and nonfunctional fashionable and functional.

Write a modular program (no classes yet, just from what you learned last year), that allows two players to play a game of tic-tac-toe. use a two-dimensional char array with 3 rows and 3 columns as the game board. each element of the array should be initialized with an asterisk (*). the program should display the initial board configuration and then start a loop that does the following: allow player 1 to select a location on the board for an x by entering a row and column number. then redisplay the board with an x replacing the * in the chosen location. if there is no winner yet and the board is not yet full, allow player 2 to select a location on the board for an o by entering a row and column number. then redisplay the board with an o replacing the * in the chosen location. the loop should continue until a player has won or a tie has occurred, then display a message indicating who won, or reporting that a tie occurred. player 1 wins when there are three xs in a row, a column, or a diagonal on the game board. player 2 wins when there are three ox in a row, a column, or a diagonal on the game board. a tie occurs when all of the locations on the board are full, but there is no winner. input validation: only allow legal moves to be entered. the row must be 1, 2, or 3. the column must be 1, 2 3. the (row, column) position entered must currently be empty (i.e., still have an asterisk in it).

Which boolean operator enables you to exclude a search term? a} not b} and c} or d} plus