Inheritance in java - Study guides, Class notes & Summaries

AP Computer Science Final Exam with Verified Solutions In Java, a method can have the same name as another method in the same class if their parameter lists are different. True The private access modifier allows a class member to be accessed only within the same package. False In Java, a String is a mutable object. False Java supports multiple inheritance directly through classes. False 2 The super keyword in Java is used to refer to the parent classs method...

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...

Inheritance 1. Suppose the class named DiscountSale is a derived class of a class called Sale . Suppose the class Sale has instance variables named price and numberOfItems . Will an object of the class DiscountSale also have instance variables named price and numberOfItems ? 2. Suppose the class named DiscountSale is a derived class of a class called Sale , and suppose the class Sale has public methods named getTotal and getTax . Will an object of the class DiscountSale have methods named...

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1. What is the most important feature of Java? Java is a platform independent language. 2. What do you mean by platform independence? Platform independence means that we can write and compile the java code in one platform (eg Windows) and can execute the class in any other supported platform eg (Linux,Solaris,etc). 3. What is a JVM? JVM is Java Virtual Machine which is a run time environment for the compiled java class files. 4. Are JVM's platform independent? JVM's are no...

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...

CSIT 210 exam questions and answers 100% verified Which of the following lines is a properly formatted comment? a. // This is a comment b. /* This is a comment */ c. /* this is a comment */ d. both a and b e. a, b and c - answere. a, b and c The Java compiler translates Java source code into _____________ . a. assembly code b. C++ c. Java bytecode d. an object-oriented language e. machine code - answerc. Java bytecode Classes can be created from other classes by using _...

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 ...

Which of the following lines is a properly formatted comment? a. // This is a comment b. /* This is a comment */ c. /* this is a comment */ d. both a and b e. a, b and c - ANSWER-e. a, b and c The Java compiler translates Java source code into _____________ . a. assembly code b. C++ c. Java bytecode d. an object-oriented language e. machine code - ANSWER-c. Java bytecode Classes can be created from other classes by using _______________ . a. machine code b. attrib...

Computer Program - A set of instructions for a computer to follow Software - The collection of programs used by a computer Bit - A digit that can assume only the values 0 or 1 Byte - Eight-bit portion of memory High-level languages - Are designed to be easy for human beings to write programs in and be easy for human beings to understand Popular High Level Languages - C, C++, C#, Java, Python Compiler - A program that translates code in a high-level language (such as C++) into a machinelan...