Method: A method is a block of code that performs a specific task. It is defined within a class and can be called to execute its functionality.
Instance Variable: An instance variable, also known as a member variable, is a variable that belongs to each individual object created from a class. It stores data unique to each object.
Access Specifiers: Access specifiers are keywords in Java (such as public, private, protected) used to define the accessibility or visibility level of classes, variables, and methods.