we know that every java prog must follows OOPS Principles.
Anybody can answer, HOW THE FOLLOWING PROGRAM FOLLOWS OOPS
CONCEPTS i.e, Inheritance,Polymarphism,Encapsulation?
class a{
public static void main(String args[]){
System.out.println("Hello World");
}
}
Re: we know that every java prog must follows OOPS Principles.
Anybody can answer, HOW THE FOLLOWING PROGRAM FOLLOWS OOPS
CONCEPTS i.e, Inheritance,Polymarphism,Encapsulation?
class a{
public static void main(String args[]){
System.out.println("Hello World");
}
}
Inheritance: Every class is extended of Object class, so in
here a extends Object. this is Inheritance.
Polymorphism: means single entity multiple views.
here only one method is there. if here multiple views, then
only it would become like Polymorphism concept.
Encapsulation: Wrapping up of data and code means methods,
variables, code, and all. every java program is based on
Encapsulation concept.
Re: we know that every java prog must follows OOPS Principles.
Anybody can answer, HOW THE FOLLOWING PROGRAM FOLLOWS OOPS
CONCEPTS i.e, Inheritance,Polymarphism,Encapsulation?
class a{
public static void main(String args[]){
System.out.println("Hello World");
}
}
Java is Pure OOPS... Try writing a java program without
Class. i.e. public class Test {}, In this way it satisfies
Oops Concept.
Abstraction: Take any thing like static, system,etc. we
don't know the internal functionalities, but by calling
them we are achieving the task. Here it is hiding the
complexities but representing essential features.
Encapsulation: By writing a program you are grouping all
the methods, variables,etc there by satisfying Encapsulation
Inheritence: When reusability occurs, you satisfy this
concept.
Polymorphism: We achieve it through Overloading and
Overriding in Java in most of the concepts.
Re: we know that every java prog must follows OOPS Principles.
Anybody can answer, HOW THE FOLLOWING PROGRAM FOLLOWS OOPS
CONCEPTS i.e, Inheritance,Polymarphism,Encapsulation?
class a{
public static void main(String args[]){
System.out.println("Hello World");
}
}
1]here we use static main method means single copy of that
method is created in memory for that particular class means
we can not accept main method out side the class we can call
this method by using class name,ie javac a.java means this is
ENCAPSULATION
2]here println is a method, its defination writen in out
that is output straem means we obtain
INHERITANCE
3]polymorphisum means one name many form basically base
class pointer in our example when u pass String args[] to
main but can manipulate all type of data inside main this is
POLYMORPHISUM
Hi Friends, Can u give few interview questions which relates
ArrayList and Hashmap. I mean how to link ArrayList and
HashMap.I know this is not good way of asking questions like
this , but i need
10. class Nav{
11. public enum Direction { NORTH, SOUTH, EAST, WEST }
12. }
13. public class Sprite{
14. // insert code here
15. }
Which code, inserted at line 14, allows the Sprite class to
compile?
a)Direction d = NORTH;
b)Nav.Direction d = NORTH;
c)Direction d = Direction.NORTH;
d)Nav.Direction d = Nav.Direction.NORTH;
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