Java Class Anatomy Quiz

Java Class Anatomy

• A class serves as a blueprint to define a new abstract data type, encapsulating data and methods.
• An object is an instance of a class, representing an actual entity created based on the class definition.
• Object-oriented programming (OOP) emphasizes design through identifying objects, their attributes, and relationships, promoting code reusability and modularity.
• Instance variables are attributes specific to an object, used to hold its data.
• Methods define actions or behaviors that objects can perform, encapsulating functionality within the class.
• Constructors are special methods invoked when an object is created, responsible for initializing instance variables.
• The main method is the entry point of a Java application, where execution begins.
• Attributes, fields, or properties are alternative terms for instance variables in a class.
• The private access modifier restricts direct access to instance variables, ensuring data encapsulation and security within the class.
• Data encapsulation combines data (instance variables) and methods, hiding implementation details and exposing only necessary interfaces.
• The public access modifier allows methods and variables to be accessed from outside the class, facilitating interaction with the object.
• An accessor method, often referred to as a getter, provides read access to private instance variables.
• A mutator method, also known as a setter, modifies the value of instance variables, controlling how data is updated.
• The term void indicates that a method does not return a value, simplifying the method’s structure.