Aggregation is a term which is used to refer one way relationship between two objects . For example, Student class can have reference of Address class but vice versa does not make sense.
Read moreWhat do you mean by aggregation?
1 : a group, body, or mass composed of many distinct parts or individuals A galaxy is an aggregation of stars and gas. 2a : the collecting of units or parts into a mass or whole.
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 base class and derived class with example?
Inheritance enables you to create new classes that reuse, extend, and modify the behavior defined in other classes. The class whose members are inherited is called the base class, and the class that inherits those members is called the derived class . A derived class can have only one direct base class.
Read moreWhat is the base object in Java?
The Object class is the parent class of all the classes in java by default . In other words, it is the topmost class of java. The Object class is beneficial if you want to refer any object whose type you don’t know. Notice that parent class reference variable can refer the child class object, know as upcasting.
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