Defines access type of the method i.e. from where it can be accessed in your application. In Java, there 4 type of the access specifiers.
public: accessible in all class in your application.
protected: accessible within the package in which it is defined and in its subclass(es)(including subclasses declared outside the package)
private: accessible only within the class in which it is defined.
default (declared/defined without using any modifier): accessible within same class and package within which its class is defined.
The return type: The data type of the value returned by the method or void if does not return a value.
Method Name: the rules for field names apply to method names as well, but the convention is a little different.
Parameter list: Comma separated list of the input parameters are defined, preceded with their data type, within the enclosed parenthesis. If there are no parameters, you must use empty parentheses ().
Exception list: The exceptions you expect by the method can throw, you can specify these exception(s).
Method body: it is enclosed between braces. The code you need to be executed to perform your intended operations.
