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abstraction in java

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Vishal answered on June 22, 2020 Popularity 10/10 Helpfulness 3/10

answer abstraction in java

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abstraction in java

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Abstraction is nothing but the quality of dealing with ideas rather than 
events. It basically deals with hiding the internal details and showing 
the essential things to the user.

Popularity 10/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: abstraction java

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Contributed on Jun 22 2020

Vishal

0 Answers Avg Quality 2/10

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abstract class Animal {
  public abstract void animalSound();
  public void sleep() {
    System.out.println("Zzz");
  }
}

Popularity 10/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: abstraction abst

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Contributed on May 23 2022

naly moslih

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abstraction java

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class MyMainEmployee{
    private int id;
    private String name;

    public MyMainEmployee(int id, String name){ // Constructor
        setId(id); // use abstraction to hide setter and for low coupling
        this.name = name;
    }

    private setId(int id){ // use setter and validator together
        if (id>=0){
            this.id = id;
        }
        else {
            throw IllegalArgumentException("Id cannot be negative");
        }
    }
}

Popularity 9/10 Helpfulness 3/10 Language java

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Contributed on Aug 05 2023

Innocent Iguana

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what is abstraction in java

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Sometimes we may come across a situation
where we cannot provide implementation to
all the methods in a class. We want to leave the 
implementation to a class that extends it.
  In that case we declare a class
as abstract by using abstract keyword on method
signature.In my framework I have created my
PageBase class as super
class of the all page classes. 
I have collected all common elements
and functions into PageBase class and
all other page classes extent PageBase class.
By doing so, I don't have to locate very
common WebElements and it provides
reusability in my framework.
Also
1)Abstract classes cannot be instantiated
2)An abstarct classes contains abstract method,
concrete methods or both.
3)Any class which extends abstarct class must
  override all methods of abstract class
4)An abstarct class can contain either
  0 or more abstract method.

Popularity 10/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: abstract-class abst

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Contributed on Jan 05 2021

Obedient Ocelot

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abstraction in java

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