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Flutter abstract class

How do you initialize an abstract class in darts?

1 April 2022 Enpatika.com Genel

A class declared as abstract can’t be initialised . An abstract class can be extended, but if you inherit an abstract class then you have to make sure that all the abstract methods in it are provided with implementation.2 Eyl 2020

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Can abstract class have getter setter?

1 April 2022 Enpatika.com Genel

Abstract class can have data members, getter and setter methods . Abstract class can be derived from other abstract or concrete class.

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Can abstract class have variables?

1 April 2022 Enpatika.com Genel

An abstract class may contain non-final variables . Type of variables: Abstract class can have final, non-final, static and non-static variables.

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What is the use of abstract class in Dart?

1 April 2022 Enpatika.com Genel

Though, on the contrary, a normal class (non-abstract class) cannot have abstract methods. An abstract class is mainly used to provide a base for subclasses to extend and implement the abstract methods that are present in the abstract class .

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Do abstract classes need to have constructors?

1 April 2022 Enpatika.com Genel

The main purpose of the constructor is to initialize the newly created object. In abstract class, we have an instance variable, abstract methods, and non-abstract methods. We need to initialize the non-abstract methods and instance variables, therefore abstract classes have a constructor .

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Do abstract classes need to have constructors?

1 April 2022 Enpatika.com Genel

The main purpose of the constructor is to initialize the newly created object. In abstract class, we have an instance variable, abstract methods, and non-abstract methods. We need to initialize the non-abstract methods and instance variables, therefore abstract classes have a constructor .

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Can abstract class have property?

1 April 2022 Enpatika.com Genel

An abstract class not only contains abstract methods and assessors but also contains non-abstract methods, properties, and indexers .

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