Object oriented programming | java methods

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In this video we are explain about java Methods,

• A method is a block of code which only runs when it is called.
• You can pass data, known as parameters, into a method.
• Methods are used to perform certain actions, and they are also known as functions.
• Why use methods? To reuse code: define the code once, and use it many times.
• A method must be declared within a class. It is defined with the name of the method, followed by parentheses (). Java provides some pre-defined methods, such as System.out.println(), but you can also create your own methods to perform certain actions:
• Access specifier or modifier is the access type of the method. It specifies the visibility of the method. Java provides four types of access specifier:
• Public: The method is accessible by all classes when we use public specifier in our application.
• Private: When we use a private access specifier, the method is accessible only in the classes in which it is defined.
• Protected: When we use protected access specifier, the method is accessible within the same package or subclasses in a different package.
• Default: When we do not use any access specifier in the method declaration, Java uses default access specifier by default. It is visible only from the same package only.

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