What are concepts of OOPS and how are they implemented in
Java?
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Answer / tarangini
oops concepts are Encapsulation, inheritance, abstractio
and polymorphism.
Encapsulation: Buildingup of the data and methods as a
single unit is called encapsulation. It isolates the
members of one class from the members of another class, so
we can declare same variable in both the classes.
best example for encapsulation is: A Class
Inheritance: Producing the new classes from already
existing class is called inheritance. The newly produced
class contains the features of old class and it has its own
features.
the use of inheritance is reusability.
Abstraction: Hiding unnecessary data from the user is
called Abstraction.
Polymorphism: Poly means many. Morphism means forms.
If same object perfrom different tasks is called
polymorphism.
| Is This Answer Correct ? | 15 Yes | 0 No |
Answer / ravikiran(aptech mumbai)
abstartcion
inheritence
polymorhism
encapsulation
| Is This Answer Correct ? | 2 Yes | 1 No |
What is bufferedreader in java?
If I will write String s=new String("XYZ"); String s1=new String("XYZ"); if(s.equals(s1)){ sop("True"); } else{ sop("False"); } This program will give me "True". But When I am creating my own class suppose class Employee{ public Employee(String name); } Employee e= new Employee("XYZ"); Employee e1 = neew Employee("XYZ"); if(e.equals(e1)){ sop("True"); } else{ sop("False"); } Then it will give the output as "False". Can I know what is happening internally?
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