Difference Between Method And Function In Java
distinguishing between method and function in java
Difference Between Method And Function In Java
In Java, the terms “method” and “function” are often used interchangeably, but in object-oriented programming, a method is a function that belongs to a class or an object. Methods are used to define the behavior of an object and they are typically called on instances of a class. On the other hand, a function is a standalone piece of code that performs a specific task and can be called from anywhere in the program. Functions are not tied to any particular object or class. So, the key difference between a method and a function in Java is that methods are associated with classes and objects, while functions are standalone blocks of code.
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1 - Functions in Java are standalone blocks of code that can be defined outside of a class, while methods are functions that are defined within a class.
2) Methods in Java are associated with an object or a class and are used to define behavior for that object or class, while functions are stand alone and do not belong to any class.
3) Functions can be declared using the “static” keyword in Java, while all methods are considered to be non static by default.
4) Methods can be overloaded within a class, meaning that multiple methods can have the same name but different parameters, while functions cannot be overloaded.
5) Functions can be called from other functions without the need for an instance of a class, while methods need to be called using an object or class reference.
6) Functions promote modularity and code reusability as they can be called from different parts of the program, while methods encapsulate behavior relevant to a specific class.
7) Functions can be defined at the top level of a Java program, while methods must be defined within a class.
8) Functions are generally used for procedural programming paradigms, while methods are more commonly used in object oriented programming (OOP) to define behavior associated with objects.
9) Functions can be defined in interfaces in Java starting from Java 8, whereas methods are present within classes and interfaces.
10) Functions cannot access instance variables directly, whereas methods can access instance variables and other methods within the same class.
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