In java, c or c++ code, when a number begins with a leading 0, what do you know about that number: (example: int zzz = 012; ) in java, c or c++ code, when a number begins with a leading 0x, what do you know about that number: (example: int zzz =0x12; ) in java, c or c++ code, when a number begins without a prefix, what do you know about that number: (example: int zzz =12; )

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).