Write a class named Averager containing: An instance variable named sum of type

Question

Write a class named Averager containing: An instance variable named sum of type integer, initialized to 0. An instance variable named count of type integer, initialized to 0. A method named getSum that returns the value of sum . A method named add that accepts an integer parameter. The value of sum is increased by the value of the parameter and the value of count is incremented by one. A method named getCount that accepts no parameters. getCount returns the value of the count instance variable, that is, the number of values added to sum . A method named getAverage that accepts no parameters. getAverage returns the average of the values added to sum . The value returned should be a value of type double (and therefore you must cast the instance variables to double prior to performing the division).

Explanation / Answer

Well, I'm sure you already know how to calculate the average of aset of elements, but to do this in your program you'll need toemploy the power of casting: public double getAverage() { return ((double)getSum() /(double)getCount()); } If you were to divide an integer by an integer then all of yourdecimal values would be truncated.

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