Okay, so I'm in a computer science class that is currently learning java. If you know java please help. So the question is what 3 methods should be in every java class. If you know this please help also I have some other questions so if you want more points I got you.

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).

Apunishment or the threat of punishment used to enforce conformity. select the best answer from the choices provided t f

What is a current gdp and what is a real gdp?