Software licensed using the Open Software Initiative (OSI) definition does not allow developers to include it in proprietary software. never restricts software modifications in any way. can be modified and re-licensed as proprietary software. is always free of cost.

Can be modified and re licenced as proprietary software

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.