Please help - What do input and output have in common?

- Which of these is NOT a level at which reading and writing of data can take place?

1. characters

2. bytes

3. paths

4. fields

- If a program closes abnormally, where may information be retained?

- Fill in the blank with the correct response.

If one is reading and writing objects to a file, one is making use of , which is a simplified process in Java.

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).