Java code - Study guides, Class notes & Summaries

AP Computer Science A Unit 2 Progress Check: MCQ Part A 100% Pass What will be the output of the following code? ```java int x = 5; int y = 10; Sln(x + y); ``` A) 15 B) 510 C) 5 D) 10 Answer: A) 15 Given the following code snippet, what is the value of `result` after execution? 2 ```java int a = 8; int b = 3; int result = a % b; ``` A) 2 B) 1 C) 3 D) 5 Answer: A) 2 Which of the following statements correctly initializes an `ArrayList` of `String` ...

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 bytecodeClasses can be created from other classes by using _______________ . a. machine code b. attributes ...

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...

Solution Manual For Data Structures and Algorithms in Java, 6th Edition by Goodrich, Tamassia & Goldwasser, ISBN: 9781118771334, All 15 Chapters Covered, Verified Latest Edition Solution Manual For Data Structures and Algorithms in Java, 6th Edition by Goodrich, Tamassia & Goldwasser, ISBN: 9781118771334, All 15 Chapters Covered, Verified Latest Edition Solution Manual For Data Structures and Algorithms in Java, 6th Edition by Goodrich, Tamassia & Goldwasser, ISBN: 9781118771334, All 15 Chapte...

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 correct answers 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 correct answers c. Java bytecode Classes can be created from other classes by using _______________ . a. machine co...

The correct syntax for the "main" method signature is: *a.* private static void main(String[] args) *b.* public static String main(String[] args) *c.* public static void main(String[] args) *d.* public void main(String[] args) *e.* none of the above - Answer-c The Java compiler does the following: *a.* checks a bytecode program in a ".class" file for run-time errors and if there are none, it generates source code for that program in a ".java" file *b.* checks a source code pr...

All .JAVA .XML and.Manifest files source code with pictures are shown in document

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 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)...