Assume that processor refers to an object that provides a void method named process that takes no arguments. as it happens, the process method may throw one of several exceptions. one of these is numberformatexception, another is filenotfoundexception. and there are others. write some code that invokes the process method provided by the object associated with processor and arranges matters so that if a numberformatexception is thrown, the message "bad data" is printed to standard output, and if filenotfoundexception. is thrown, the message "data file missing" is printed to standard output. if some other exception is thrown, its associated message is printed out to standard output.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?