Introduction to Objects - Advanced Topics in Java: Core Concepts in Data Structures - page 67

Invalid vote: 8
Invalid vote: 9

Number of voters: 30
Number of valid votes: 28
Number of spoilt votes: 2

Candidate Score

Avasa Tawari 6
Saskia Kalicharan 6
Nirvan Singh 4
Torrique Granger 4
Dawren Greenidge 3
Jordon Cato 3
Denise Duncan 2

The winner(s)
Avasa Tawari
Saskia Kalicharan

eXerCISeS 2

1. What is meant by the state of an object? What determines the state of an object?

2. distinguish between a class and an object.

3. distinguish between a class variable and an instance variable.

4. distinguish between a class method and an instance method.

5. distinguish between a public variable and a private variable.

6. explain what happens when the statement String S = new String("Hi") is executed.

7. to what values are instance fields initialized when an object is created?

8. What is a no-arg constructor? how does it become available to a class?

9. You have written a constructor for a class. What do you need to do to use the no-arg

constructor?

10. What is meant by the term data encapsulation ?

11. “an object variable does not hold an object.” explain.

12. explain the role of the toString() method in java.
13. Write a program to read names and phone numbers into an array of objects. request a name
and print the person's phone number.