a. No. b. Yes, but only if the two lasses have the same name ao Yes, but only if the main program does not create object or d. Yes, but this is always allowed both kinds. 18. When a child class defines a method with parent, we say that the child's version e name and signature as a method in the the parent's version. 19. this as When a single object reference variable may refer to objects of different classes, we re The ability to define a class so that it stores, operates on, and manages objects whose type is 20. not specified until the class is instantiated comes from the use of 21. List three ways to deal with a possible exceptional situation. 22. A Last In First Out collection is called aoC 23. Ais an object that collects and organizes other objects. 24. A data type whose values and operations are not inherently defined within a programming language is A. collection B. data structure abstract data type none of the above defines a set of abstract methods which is useful in separating th 5. A Java oncept of an abstract data type from its implementation. An is an object that allows you to step through the elements of a colle e at a time