CS506 Quiz May 2026

VU QUIZ REPORT

Subject: CS506

Quiz Completed: 18/05/2026, 21:19:58 Total Questions: 10

Which of the following classes provide definitions for all the methods (empty bodies) of their corresponding Listener interface?

1. public classes
2. inner classes
3. adapter classes
4. private classes

Correct answer: adapter classes

_________ is correct syntax to create a general purpose container “myPanel” having flow layout. A. JPanel myPanel = new JPanel (new FlowLayout);

B. JPanel myPanel = new JPanel (new FlowLayout());

C. JPanel myPanel = JPanel (FlowLayout()); D. JPanel myPanel = new JPanel (FlowLayout());

Which of the following classes is capable to instantiate?

1. Interface class
2. Concrete class
3. None of the given
4. Abstract class

Correct answer: Concrete class

Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?

1. ExecuteUpdate(sql);
2. executeQuery(sql);
3. executeUpdate(sql);
4. ExecuteQuery(sql);

Correct answer: executeUpdate(sql);

Which of the following is NOT true for java inner classes?

1. Generally used as public utility classes
2. Can have constructors
3. Can have Methods
4. Can have instance variables

Correct answer: Generally used as public utility classes

If the subclass overrides all the abstract methods of super class, then subclass is called ______. A. Base class B. Parent class

C. Concrete class

D. Abstract class

Which of the following methods is a correct registration method for Focus Listener interface?

1. addFocusListener
2. regFocusedListener
3. addFocusedListener
4. regFocusListener

Correct answer: addFocusListener

Which of the following statement is true about abstract class?

1. A class without any abstract method can be declared as abstract class.
2. A class must have at least one abstract method to be an abstract class.
3. An instance of abstract class can be created.
4. An abstract class must have all methods declared as abstract methods.

Correct answer: A class without any abstract method can be declared as abstract class.

AWT is also called ______.

A. Heavy weight components

B. Both Light weight and heavy weight components C. Neither Light weight nor heavy weight D. Light weight components

Which of the given methods is/are declared for “MouseListener” interface?

1. MouseMoved
2. MousePressed
3. MouseDragged
4. MouseKeyPressed

Correct answer: MousePressed