Answer Posted / 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.

Explain the difference between abstraction and encapsulation.

545

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How do you make a thread in java?

641

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Garbage collection in java?

611

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Explain why wait(), notify() and notifyall() methods are in object class rather than in the reading class?

577

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What is append in java?

639

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What is method reference in java?

575

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What is abstraction in java?

621

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What is a percentage sign called?

627

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What does || || mean in math?

521

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What is the difference between inner class and nested class?

557

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Can a variable be local and static at the same time?

556

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What is volatile keyword in java

660

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What is a lightweight component?

602

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What is set string?

607

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In a program, initializing an array of 100 KB is throwing an out of memory exception while there is 100 MB of memory available. Why?

588

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