What methods do you use when researching a complicated or difficult subject? What tools are most useful to narrowing down and validating your research? Explain your answers.

Complete the sentence about a presentation delivery method

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.

Ideally, the backrest is tilted back slightly, so when you turn the wheel your shoulders are the seat.