java.lang.Number doesn't implement “+” or any other operators?

Question

I\'m creating a class which is supposed to be able to be used with an array of any type of number (float, int, etc), so here is one method I have:

// T exten         


        

Answer 1

public int showAllNum(Number i, Number j) {
    return (int) (i.doubleValue()+j.doubleValue()); 
}