Home » JAVA Programming » Object & Classes » Question

Object & Classes

Easy Questions

JAVA Programming

Java Basic
Basic Syntax
Object & Classes
Basic Datatypes
Variable Types
Modifier Types
Basic Operators
Loop Control
Decision Making
Numbers
Characters
Strings
Arrays
Date & Time
Regular Expressions
Methods
Files and I/O
Exceptions
Inheritance
Polymorphism
Abstraction
Encapsulation
Interfaces
Packages
Data Structures
Collections
Generics
Serialization
Networking
Multithreading
Applet
  1. Which of these methods is called when observed object has changed?
    1. notifyObserver()
    2. update()
    3. setChanged()
    4. All of above
    5. None of these
Correct Option: D

notifyObserver(), update(), setChanged().


Your comments will be displayed only after manual approval.