In OOP, IS-A relationship is completely inheritance . This means, that the child class is a type of parent class. For example, an apple is a fruit. So you will extend fruit to get apple.
Read moreWhat IS-A relationship in programming?
In knowledge representation, object-oriented programming and design (see object-oriented program architecture), is-a (is_a or is a) is a subsumption relationship between abstractions (e.g. types, classes), wherein one class A is a subclass of another class B (and so B is a superclass of A) .
Read moreIS-A relationship in OOP Java?
An IS-A relationship is inheritance. The classes which inherit are known as sub classes or child classes. On the other hand, HAS-A relationship is composition. In OOP, IS-A relationship is completely inheritance .
Read moreWhat is composition and inheritance in Java with example?
The composition is a design technique in which your class can have an instance of another class as a field of your class. Inheritance is a mechanism under which one object can acquire the properties and behavior of the parent object by extending a class.
Read moreWhat are the main parts of Java?
There are three main components of Java language: JVM, JRE, and JDK . Java Virtual Machine, Java Runtime Environment and Java Development Kit respectively.
Read moreWhat is composition in OOP in Java?
Composition is one of the fundamental concepts in object-oriented programming. It describes a class that references one or more objects of other classes in instance variables . This allows you to model a has-a association between objects. You can find such relationships quite regularly in the real world.
Read moreIs composition a type of aggregation?
Composition is a restricted form of Aggregation in which two entities are highly dependent on each other. It represents part-of relationship. In composition, both entities are dependent on each other. When there is a composition between two entities, the composed object cannot exist without the other entity.14 Mar 2022
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