Question 8Using the class definition in a previous problem:Mischief a1;Mischief a2 = a1;%3Dis invoking the assignment operator for Mischief objects.O TrueO FalseDQuestion 9When declaring an array of N objects, the constructor is invoked once forthe creation of the entire array.O TrueFalse

Question 8 Using the class definition in a previous problem: Mischief a1; Mischief a2 = a1; is invoking the assignment operator for Mischief objects. O True O False Question 9 When declaring an array of N objects, the constructor is invoked once for the creation of the entire array. True False

Question 8 Using the class definition in a previous problem: Mischief a1; Mischief a2 = a1; is invoking the assignment operator for Mischief objects. O True O False Question 9 When declaring an array of N objects, the constructor is invoked once for the creation of the entire array. True False

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a Program to define a Mobile class, with member variables o String brand; o double price o String OS (make it Final). o Float memory 1. Make a default constructor, 2. Make a parameterized constructor. 3. Overload the above Constructor. 4. Provide getters and setters for data members. 5. Inside main, create an array of mobiles. 6. Take data from user and set the values for the mobiles in array (check for array out of bound exception). 7. At the end Print data of array using Loop. Programming language : Java
1Declare an array to store objects of the class defined by the UML above. Use a method from the JOptionPane class to request the length of the array from the user. and Use a method from the JOptionPane class to request values from the user to initialize the instance variables of Election objects and assign these objects to the array. The array must be filled using this UMl
TODO 1 Obtain all the indexes with labels equal 2 with np.where and the label array y. Keep the results in two_class_idx also index np.where() at 0 # TODO 1.1 two_class_idx = print(f"two_class_idx output: \n {two_class_idx}") try: print(f"two_class_idx shape: {two_class_idx.shape}") except Exception: pass todo_check([ (isinstance(two_class_idx, np.ndarray),f'two_class_idx is not an NumPy array! two_class_idx is currently a {type(two_class_idx)}'), (np.all(two_class_idx == np.array([3,9,11,12,16])),'two_class_idx does not contain the correct location values') ])
Solve this using python language and don't use any built in function. Create a KeyIndex class with the following properties : Fields: int [ ] k; Description An array of integers. Note: You may maintain another global variable(java)/instance variable(python) if needed (but you can’t use more than one). Constructor:(10 marks) KeyIndex(int [ ]a) Description: This constructor takes an array of integers a and populates array k with the element in a as indices into k. Note: make sure the build-up of your array k supports negative and non-distinct integers. Methods: search (int val) Description: This method searches for the value val within the array and returns true if found or false otherwise. sort () Description: This method will return the sorted form of the array that had been passed into the constructor. NOTE: Create a tester class or write tester statements to check whether the methods in your KeyIndex class work properly.
Create a class named Collection for which each object can hold integers. The class should have following two private data members1. An integer pointer named data that holds a reference of an array created dynamically according to the specified size. 2. A constant integer named size to hold the maximum size of the array. Provide the implementation of following constructors and a destructor1. A constructor which accepts an integer that represents the size of an array and initializes it to the "empty collection," i.e., a collection whose array representation contains all 0. 2. An additional constructor that receives an array of integers and the size of that array and uses the array to initialize a collection object. 3. A copy constructor to initialize a collection object with already existing object. 4. A destructor to free any memory resources occupied by the collection object. Provide following member functions for the common set operations 1. getSize returns the size of collection.2.…
Implement the Rectangle class as discussed this week. Use the class declaration below. Your job is to implement the functions. Implement the missing functions yourself. class Rectangle{ private: double width; double length; char *name; void initName(char *); public://constructorsRectangle();Rectangle(double, double, char*);//destructor ~Rectangle(); void setWidth(double); void setLength(double); void setWidth(char *); void setLength(char *); void setName(char *); double getWidth() const; double getLength() const; void printName() const { cout << name; }}; A few notes on the functions: initName(char *): this is a private member function. It should be the only function which dynamically allocates a char array to hold the name. setName(char *): this is a public member function which changes the name of the rectangle to a new name. It does not dynamically allocate memory, it only changes name. Demonstrate your class works…
In java Define and create an array (called emps) of object references for objects of class Employee of length 100. (b) Create three objects for classes SalariedEmp, WeeklyEmp, and HourlyEmp (where these 3 classes are subclasses of class Employee); and with references e1, e2, e3 for the 3 objects:(c) Assign e1,e2, e3 to the first three elements of array emps:(d) Print the earnings of the 100 employee in the array emps in one loop (with polymorphism) where earnings are calculated with method earnings():
Question: 3Implement the design of the Student_Tutor class that inherit from Student class so that the following code generates the output below:Hint: Each room has a capacity of 2 Student tutors.class Student: def __init__(self,name,student_id): self.name = name self.student_id = student_id self.semester = "Spring 2022" def details(self): print("Name:",self.name) print("Student_ID:",self.student_id) print("Current Semester:",self.semester)# Write your code here:STs = []S1 = Student("Reem", 18101235)S1.details()print("1.======================================")ST1 = Student_Tutor("Moynul", 16107892, 35, "CSE110", "CSE111")ST2 = Student_Tutor("Priyo", 16107792, 25,"CSE320")ST3 = Student_Tutor("Ronok", 18207892, 36, "CSE110", "CSE111", "CSE221", "CSE220")ST4 = Student_Tutor("Zeba", 19307892, 48, "CSE110")STs.extend([ST1, ST2, ST3, ST4])print("2.======================================")for i in range(len(STs)): STs[i].details()…
Question 2: write a complete Java class and follow the steps:A. Create class and name it as ArrayOperation. Write the main function. In the main function, define array of size 3x4 of type double, name the array as DoubleList. Store the followings values into the array 10, 20,30,40,50,70,90,100,-8,-5,-1,-4 Create function and name it as PrintArray. The type of function is void and it has doublearray of two dimensional. The name of the array is DoubleArr defined in the function headeras formal parameter. PrintArray should print all the values of the array. Test PrintArray function in the main function. Create class and name it as ArrayOperation. Write the main function In the main function, define array of one dimensional size of 5, of type Sring . The name of thearray is StringList. Store the followings values into the array "Information", "Science", "Math", "Data base","Machine Learning" Create function and name it as UpperCase. The type of function is void, and it has String…
Create a Vector2D class with properties x and y and a proper constructor method. Plus, minus and multiplication with a scalar operators should be overloaded. Create a Body class with properties of pos, vel, mass and constructor(float Mass, Vector2D Pos, Vector2D Vel), addForce(Vector2D F) and Move(float dt) methods. Your program should create an array or collection of Bodies, at each time step (dt), calculate forces that bodies exert each other and apply accordingly. Finally, in a 2D space, bodies should move freely based on their properties and applied forces. You can use option buttons or another element to represent bodies and move them inside the form.
JAVA PROGRAM ASAP *********** THIS PROGRAM MUST WORK IN HYPERGRADE AND PASS ALL THE TEST CASES. Please create a program BECAUSE IT IS. MY HOMEWORK ASSIGNMENT with the following parts which are down below: The left index is inclusive and the right index is exclusive. 1. public static void bubbleSort(int[] array, int left, int right) { // your code here } 2. public static void insertionSort(int[] array, int left, int right) { // your code here } 3. public static void selectionSort(int[] array, int left, int right) { // your code here } Test Case 1 Please enter a space separated list of numbers to sort or type QUIT to exit:\n4 3 2 1ENTERSorting first half of the array using Bubble Sort algorithm:\n3 4 2 1\nSorting second half of the array using Bubble Sort algorithm:\n4 3 1 2\nSorting the array using Bubble Sort algorithm:\n1 2 3 4\nSorting first half of the array using Insertion Sort algorithm:\n3 4 2 1\nSorting second half of the array using Insertion…
Write the definitions of the member functions of the classes arrayListType and unorderedArrayListType that are not given in this chapter. The specific methods that need to be implemented are listed below. Implement the following methods in arrayListType.h: isEmpty isFull listSize maxListSize clearList Copy constructor Implement the following method in unorderedArrayListType.h insertAt Also, write a program (in main.cpp) to test your function.