How many mobile operating system are there in this world?

Choose the best explanation for the following statement communication is symbolic

Which is a possible benefit of having a good credit history? having a checking account low interest rate on a car loan high interest rate on a credit card offer bankruptcy

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.