Given two variables matric_age and grad_age, write a statement that makes the associated value of grad_age 4 more than that of matric_age. Note: This question does not follow our naming convention for variables. matric_age and grad_age should have been named matricAge and gradAge.

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.