If a class implements an interface, all its subclasses do so implicitly.
Answer the following statement true (T) or false (F)
True
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Having a StreamReader and StreamWriter object open for the same file at the same time ________.
a) simplifies code b) enables universal access to the file c) causes an error d) improves application performance e) None of the above
A(n) ________ occurs when a button is clicked on a UI.
Fill in the blank(s) with the appropriate word(s).
What is the output of running class Test?
``` public class Test { public static void main(String[] args) { new Circle9(); } } public abstract class GeometricObject { protected GeometricObject() { System.out.print("A"); } protected GeometricObject(String color, boolean filled) { System.out.print("B"); } } public class Circle9 extends GeometricObject { /** No-arg constructor */ public Circle9() { this(1.0); System.out.print("C"); } /** Construct circle with a specified radius */ public Circle9(double radius) { this(radius, "white", false); System.out.print("D"); } /** Construct a circle with specified radius, filled, and color */ public Circle9(double radius, String color, boolean filled) { super(color, filled); System.out.print("E"); } } ``` a. ABCD b. BACD c. CBAE d. AEDC e. BEDC
To export ________ from one database to another, you must copy and paste the records
A) tables B) objects C) table relationships D) selected records