What is a class in java - 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...

COMPUTER SOFTWARE Straighterline IT101 Information Technology Fundamentals Graded Topic Test (New Version August 2024) We are a team of experts offering course/class attendance (including final proctored exams!!) for all Straighterline, Online ATI, HESI, NCLEX, Portage Learning, Sophia, Nursing, Business etc courses. We also write essays, discussion posts, research papers and school assignments. Should you need any of these services, Contact us via email: or : +1 (540) 753-5914. Guarante...

What is the method signature for the main method of a Java program? - main(String[] args) What is overloading? - two methods that have the same name but different method signatures What is overriding? - Declaring a method in a sub class which is already present in the parent class in order to make the method more specialized to that sub class True or False, assertEquals uses .Equals() - True If you have a child class that is extended a parent class, and that parent class has a protected met...

What is the purpose of an object's instance variables? CORRECT ANSWER To store the data for a single instance of a class. Suppose you want to work with objects of the Student class. What do you need to know? CORRECT ANSWER The public interface of the class. T/F: S is an object CORRECT ANSWER True T/F: String is an object CORRECT ANSWER False T/F: Suppose that a new version of Java is released, and that the Java compiler changes the way that string objects store characters. If the st...

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...

AP Computer Science Multiple Choice with Complete Solutions What will be the output of the following code snippet if `x = 7` and `y = 3`? ```java int result = x / y; Sln(result); ``` `2` - `2.0` - `3` - `2.333` Which of the following statements is used to create a new instance of a class in Java? - `ClassName obj = new ClassName();` - `ClassName obj = ClassName();` 2 - `ClassName obj = new ClassName;` - `new ClassName obj = new ClassName();` `ClassName ob...

AP Computer Science A Premium, 12th Edition: Prep Book with 6 Practice Tests + Comprehensive Review + Online Practice (Barron's AP Prep) 2024 with complete solution Barron’s AP Computer Science A Premium, 12th Edition includes in‑depth content review and practice. It’s the only book you’ll need to be prepared for exam day. Written by Experienced Educators Learn from Barron’s‑‑all content is written and reviewed by AP experts Build your understanding with comprehensive re...

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: Unit 2 Exam with Complete Solutions Consider the following code segment: ```java public class Car { private String model; private int year; public Car(String model, int year) { = model; = year; } public String getModel() { return model; } public int getYear() { 2 return year; } } ``` What is the purpose of the `getModel()` and `getYear()` methods in this class? The `getModel()` and `getYear()` methods are accessor methods (getters)...

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...