A class can do everything an abstract class can do True O False A tail recursive solution is often more complex to code as it contains only 1 method to solve a solution O True O False Using the ctrl-spacebar can create a method. True O False Given a HashMap called myHashMap that has a key-value of String-Integer, the following code would print all of the keys for(String s : myHashMap) System.out.println( s ); True False