Create JUnit Tests Create JUnit Tests to test the budgetBalance methods in both the AllInclusive and ALaCarte classes. Test each method from polymorphically via an object variable that is of type Vacation. Review the JUnit API and documentation as since the budgetBalance method returns a double, you will need to use one of the assertEquals methods that handles doubles since doubles values may not be exact due to rounding errors.

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).