[PDF] ap computer science inheritance multiple choice

What is the answer key for Computer Science a multiple-choice questions?

Following is a representative set of questions. The answer key for the Computer Science A multiple-choice questions is on page 43. Multiple-choice scores are based on the number of questions answered correctly. Points are not deducted for incorrect answers, and no points are awarded for unanswered questions.

How to simulate multiple inheritance?

Single inheritance is simple to achieve: just define your class and add a BaseClass in your declaration. public class A : System.Windows.Forms.Form { … } To simulate multiple inheritance, you can use composition, redefine the base class and delegate the job to the embedded class. Figure 2. Simulating multiple inheritance using composition.

How does inheritance work?

Three things must be kept in mind for this question.  First (and foremost), given the way that inheritance works, you know that for each object, you will get an output that matches the given object's particular type—even though the array is an array of the superclass type (namely Philosopher).

How many classes does object inherit?

Object inherits a minimum of four classes. Correct answer: Every class has all of Object's methods. Explanation: Object is the most basic class which all others, even user made ones, inherit. Therefore, all classes have Object's methods.