Write code that given the variable levelVals (a 1-by-n array) assigns to the variable boxArray a (2*n-1)-by-(2*n-1) array as described below. The desired form of boxArray can most easily be described with examples:

Use a physical stopwatch to record the length of time it takes to run the program. calculate the difference obtained by calls to the method system. currenttimemillis() just before the start of the algorithm and just after the end of the algorithm. calculate the difference obtained by calls to the method system. currenttimemillis() at the start of the program and at the end of the program so that the elapsed time includes the display of the result. use the value returned by the method system. currenttimemillis() just after the end of the algorithm as the elapsed time.

When a presentation is being planned, it is important to ensure that it covers all available information. appeals to the audience. uses multimedia tools. entertains the audience.

Acontact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. write a program that first takes in word pairs that consist of a name and a phone number (both strings). that list is followed by a name, and your program should output that name's phone number.