Q25)
Answer: 3rd option, i.e.,
"The program will compile, but you cannot create an object of Circle with a specified radius. The object will always have radius 0."
Explanation:- In the given program, the parameters, i.e., the formal parameters and the instance variableshave the same name leading to an ambiguity. Therefore, there is no way one cay say that the value of which variable is assigned to which one.The program, in such a case, compiles but the instance variables are initialized not with the values passed through the parameterised constructor. Instead, the instance variables are initialized with the default values based on the datatype of the variable.
Q26)
The question is incomplete and lacks sufficient information and hence cannot be answered.
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class Circle { private double radius; public Circle(double radius) { radius = radius; } } public Circle(double radius) { radius = radius; } } The program does not compile because Circle does not have a default constructor. The program will compile, but you cannot create an object of Circle with a specified radius. The object will always have radius 0. The program has a compilation error because it does not have a main method. The program has a compile error...
Analyze the following code: public class Test { public int x; public Test(String t) { System.out.println("Test"); public static void main(String[] args) { Test test: System.out.println(test.x); The program has a compile error because Test class does not have a default constructor The program has a compile error because test is not initialized OO The program has a compile error because x has not been initialized The program has a runtime NullPointerException while executing test.x because test is a null reference and...
Question 1 (5 points) Question 1 Unsaved What is displayed on the console when running the following program? public class Quiz2B { public static void main(String[] args) { try { System.out.println("Welcome to Java"); int i = 0; int y = 2 / i; System.out.println("Welcome to Java"); } catch (RuntimeException ex) { System.out.println("Welcome to Java"); } finally { System.out.println("End of the block"); } } } Question 1 options: The program displays Welcome to Java two times. The program displays Welcome to...
Question 11 (20 points) Given the class Point below, define a class Circle that represent a circle with a given center and radius. The circle class should have a center attribute named center as well as a floating point radius attribute. The center is a point object, defined by the class Point. The class should also have these members: the constructor of the class, which should take parameters to initialize all attributes - a getter for center a setter for...
Part 1: Use principles of inheritance to write code calculating the area, surface area, and volume of rectangular objects. First, write an abstract super class RectangularShape, then write a subclass Rectangle that inherits from the super class to compute areas of rectangles, including squares if there is only one data. Finally, write another subclass Cuboid that inherits from its super class Rectangle above to compute surface areas and volumes of cuboids, including 3 equal sided cube. Must apply code-reusability in...
Exercise 2: There can be several constructors as long as they differ in number of parameters or data type. Alter the program so that the user can enter just the radius, the radius and the center, or nothing at the time the object is defined. Whatever the user does NOT include (radius or center) must be initialized somewhere. There is no setRadius function and there will no longer be a setCenter function. You can continue to assume that the default...
Problem 2 9.9 Geometry: n-sided regular polygon pg. 362 (25 points) Follow instructions as provided on page 362, reprinted below 9.9 (Geometry: n-sided regular polygon) In an n-sided regular polygon, all sides have the same length and all angles have the same degree (i.e., the polygon is both equilateral and equiangular) Design a class named RegularPolygon that contains A private int data field named n that defines the number of sides in the polygon with default value of 3 A...
Previous Page Next Page Page 2 of 12 Question 2 (6 points) Aluminum rivets produced by Rivets Forever, Inc. are believed to have shearing strengths that are distributed about a mean of 13.75 and have a standard deviation of 2.4. If this information is true and a sample of 64 such rivets is tested for shear strength, what is the probability that the mean strength will be greater than 13.45? Round to 4 decimal places. Previous Page Next Page Page...
1. What is the output when you run printIn()? public static void main(String[] args) { if (true) { int num = 1; if (num > 0) { num++; } } int num = 1; addOne(num); num = num - 1 System.out.println(num); } public void addOne(int num) { num = num + 1; } 2. When creating an array for primitive data types, the default values are: a. Numeric type b. Char type c. Boolean type d. String type e. Float...
what does a DEXA scan measure
Previous Page Next Page Question 1 (2 points) What does a DEXA scan measure? Bone mineral density Severity of bone microfractures Effect of sodium and potassium supplements Calcium and water balance Movement of calcium throughout the body Next Page Submit Quiz Question 16 (2 points) "Please review the scenario below and describe what you can deduce about the patient's condition." A test item such as this one is most consistent with: u a) A...