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. This means, that the child class is a type of parent class.15 Eki 2018
Read moreIs a or has a relationship Java?
In Java, we have two types of relationship: Is-A relationship: Whenever one class inherits another class, it is called an IS-A relationship. Has-A relationship: Whenever an instance of one class is used in another class, it is called HAS-A relationship.
Read moreWhat are the benefits of inheritance in Java?
Benefits of Inheritance Inheritance helps in code reuse . The child class may use the code defined in the parent class without re-writing it. Inheritance can save time and effort as the main code need not be written again. Inheritance provides a clear model structure which is easy to understand.
Read moreWhat inheritance does Java support?
Java supports only Single, Multilevel, and Hierarchical types of inheritance. Java does not support Multiple and Hybrid inheritance.
Read moreHow is inheritance used in Java?
The most important use of inheritance in Java is code reusability . The code that is present in the parent class can be directly used by the child class. Method overriding is also known as runtime polymorphism. Hence, we can achieve Polymorphism in Java with the help of inheritance.
Read moreWhat is an example of overloading?
Example 1: Overloading – Different Number of parameters in argument list . In the above example – method disp() is overloaded based on the number of parameters – We have two methods with the name disp but the parameters they have are different. Both are having different number of parameters.
Read moreIs this an example of method overloading or overriding?
Method overloading is a example of compile time polymorphism . Whereas method overriding is a example of run time polymorphism. 3.
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