I want to change my username

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.

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication

Asap 50 points ( paragraph pls) discuss the role of the concept behind the "internet of things (iot)" in today's digitally connected society.