Ineed writing a hexadecimal adder. this is the question: hexadecimal numerals are integers written in base 16. the 16 digits used are '0' through '9' plus 'a' for the "digit 10", 'b' for the "digit 11", 'c' for the "digit 12", 'd' for the "digit 13", 'e' for the "digit 14", and 'f ' for the "digit 15". for example, the headecimal numeral d is the asme as base 10 numeral 13 and the dexadecimal numeral 1d is the same as the base 10 numeral 29. write a c++ program to perform addition of two hexadecimal numerals each with up to 10 digits. if the result of the addition is more than 10 digits long, then simply give the output message "addition overflow" and not the result of the addition. use arrays to store hexadecimal numerals as arrays of characters. include a loop to repeat this calculation for new numbers until the user says she or he wants to end the program.

Write a car class having two private member variables called tank and speed. write public methods called pumpgas and gofast. the method pumpgas gets an integer for gas that must be pumped. that value needs to be added to tank (no more than 20 gallons). it must return the amount of gas that is purchased ($4 per gallon). the method gofast should increase the speed by 5 each time it is called.write a constructor for the above class that initialized both variables to zero.write a tostring to display both the tank and speed when the car is printed.modify the car class to implement the interface comparable and an interface called carinter having the public methods in carinter.write the main program to create an array of size 5 of type car. create 5 car objects having each location of the array to refer to one of the cars. test the pumpgas, gofast, equals method on the array items. write an enhanced loop to print all the car values (using a tostring written last time).write a generic method to find the minimum of four items. pass int, double, char, string and car objects to test this method.