when java determine method overloading

when java determine method overloading

Java determines method overloading based on the number and types of parameters in the method signature. When you define multiple methods with the same name within a class, Java allows you to overload those methods by providing different parameter lists.

Java’s method overloading rules are as follows:

1. Number of Parameters: Two methods can be overloaded if they have a different number of parameters. For example:

2. Data Types of Parameters: Two methods can be overloaded if they have the same number of parameters but different data types. For example:

3. Order of Parameters: Two methods can be overloaded if they have the same number of parameters and data types, but in a different order. For example:

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why java is called object oriented

Java is called object-oriented because it follows the principles and concepts of object-oriented programming (OOP). OOP is a programming paradigm that organizes software design around objects, which are instances of classes.

Java embodies the key features of OOP, which include:

1. Encapsulation: Java allows you to encapsulate related data and methods within objects. By defining classes, you can create objects that encapsulate their state (data) and behavior (methods) together. Encapsulation promotes data hiding and provides a way to control access to the object’s internal state.
2. Inheritance: Java supports inheritance, allowing you to create new classes (subclasses) that inherit properties and methods from existing classes (superclasses). Inheritance promotes code reuse, as subclasses can inherit and extend the functionality of their superclasses. This facilitates the creation of hierarchical relationships and promotes modular and maintainable code.
3. Polymorphism: Java supports polymorphism, which allows objects of different classes to be treated as objects of a common superclass. Polymorphism enables you to write code that can work with objects of multiple related classes, providing flexibility and extensibility. It allows methods to be dynamically dispatched at runtime based on the actual type of the object.
4. Abstraction: Java enables abstraction by allowing you to define abstract classes and interfaces. Abstract classes provide a way to define common properties and methods that subclasses must implement, while interfaces define contracts that classes can implement. Abstraction helps in creating modular, loosely coupled code by focusing on essential features and hiding implementation details.

These features make Java a powerful and flexible language for building modular, reusable, and maintainable software systems. By emphasizing objects as the fundamental building blocks, Java supports the principles of encapsulation, inheritance, polymorphism, and abstraction, which are the core tenets of object-oriented programming.