Superclass - Study guides, Class notes & Summaries

Any object that can be thown as an Exception must inherit from what class? - Throwable Can a field declared as type boolean hold a value of 1? - No Can a programmer create his/her own Exception class? - Yes. A programmer can create their own Exception class in Java. Can a sub-class also be a super-class? - Yes, Java allows this Can a subclass write methods that do not appear in the superclass? - Yes Can an interface be instantiated? - No Can an interface be instantiated? - You can never i...

AP Computer Science A 100& Correct What is encapsulation in object-oriented programming? Encapsulation is the concept of bundling data (fields) and methods (functions) that operate on the data into a single unit, typically a class. It helps to protect the internal state of an object and exposes only necessary parts through public methods. What does inheritance allow you to do in Java? Inheritance allows a subclass to inherit fields and methods from a superclass. This promotes co...

Object - An instance of a class Class - Blueprint/prototype from which objects are created Inheritance - subclasses can inherit states/behaviors of superclasses interface - contract between class and outside world; when a class implements an interface, it promises to provide the behavior published by that interface package - a namespace for organizing classes & interfaces in a logical manner; makes large software projects easier to manage Encapsulation - Hiding the internal state ...

Java Programming Study Guide; Questions and Answers 100% Pass super CORRECT ANSWER-A call to a superclass constructor. subclass method CORRECT ANSWER-Must use the same method name and the same parameter types to override a superclass method. instanceof operator CORRECT ANSWER-Used to test whether an object belongs to a particular type. overloaded method CORRECT ANSWER-A subclass method that uses the same method name but different parameter types for a method that appears in its super...

AP Computer Science A - Review 1 Latest Update 100% Pass What is the difference between an `ArrayList` and an array in Java? An `ArrayList` is a resizable data structure that can grow and shrink dynamically, whereas an array has a fixed size. Additionally, `ArrayList` provides methods for manipulating the list, such as adding, removing, and searching for elements. What is inheritance, and how does it work in Java? Inheritance allows a new class (subclass) to inherit properties...

A call to a final method can only be resolved at run time - False A final method in a superclass cannot be overridden in a subclass - True A method declared as private in the superclass can be overridden in the subclass - False A static method in a superclass can be overridden in the subclass - False ENUM type is value type - False - Enum type is reference type A subclass can inherit (extends) from a final class. - F

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To override a superclass method in a subclass, the subclass method ____. A. Must use a different method name. B. Must use the same method name and the same parameter types. C. Must use a different method name and the same parameter types. D. Must use a different method name and different parameter types. CORRECT ANSWER B. must use the same method name and the same parameter types public interface Sizable { int LARGE_CHANGE = 100; void changeSize(); } Which of the following indicate...

AP Computer Science: Unit 4 Questions with Verified Solutions How can you implement a "recursive function" to solve a problem? You implement a recursive function by having it call itself with modified arguments, typically including a base case to terminate the recursion. What is the role of the `__init__` method in a class? The `__init__` method initializes an object’s attributes when the object is created, acting as a constructor in a class. How does "inheritance" work in ...

MIS 3320 BAYLOR Final review Actual Exam 2024/2025 class diagrams used to model classes & their associations with other classes -UML diagram -object oriented (OO) diagram (used for OOAD, OOP/OOPL, OODB) domain model class diagram -in analysis phase -model objects in the problem domain (things that need to be remembered) -PK identified as {key} -similar to ERD -domain models go to DBA and programmer design class diagram -in design phase -model software classes (data types: st...