AP CS - Unit 5 Review

Front

What is a mutator ?

Back

An instance method that modifies the object’s internal state.

Front

What is encapsulation?

Back

Hiding the implementation details of an object from the clients of the object, usually using the private keyword.

Front

What is an accessor ?

Back

An instance method that provides information about the state of an object, without modifying it.

Front

What is a client (also called client code)?

Back

Code that interacts with another class or objects of that class

Front

Back

true

Front

Back

0 0 0

Front

Back

II only

Front

Which of the following would be the best specification (method header) for a new LineSegment method named distanceToPoint that calculates the shortest distance from the point to the LineSegment? Options: public double distanceToPoint(), public void distanceToPoint(Point p, double d), public double distanceToPoint(Point p), public void distanceToPoint(), public double distanceToPoint(Point p, Point start, Point end)

Back

public double distanceToPoint(Point p)

Front

In a Java program which of the following correctly declares and initializes an object LineSegment seg from the coordinates (1.0, 2.0) to (5.0, 6.0) ?

Options:
Point p1 = new Point(1.0, 2.0);
Point p2 = new Point(5.0, 6.0);
LineSegment seg = new LineSegment(p1, p2);

Back

Point p1 = new Point(1.0, 2.0);
Point p2 = new Point(5.0, 6.0);
LineSegment seg = new LineSegment(p1, p2);

Front

Back

II only