A method that implements an iterator for Song objects using the return yield statement must have a return type of _____________________. Question 16 options: a) Iterator b) List c) void d) IEnumerable

A method that implements an iterator for Song objects using the return yield statement must have a return type of _____________________. Question 16 options: a) Iterator b) List c) void d) IEnumerable

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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Prior to Java 7, you needed to code the type for a typed collection twice to create the collection. With Java 7 and later, you can use the ____________ operator instead of coding the type a second time.
#include <iostream>using namespace std;class Player{private:int id;static int next_id;public:int getID() { return id; }Player() { id = next_id++; }};int Player::next_id = 1;int main(){Player p1;Player p2;Player p3;cout << p1.getID() << " ";cout << p2.getID() << " ";cout << p3.getID();return 0;} Run the program and give its output.
// FILE: IntSet.h - header file for IntSet class// CLASS PROVIDED: IntSet (a container class for a set of// int values)//// CONSTANT// static const int MAX_SIZE = ____// IntSet::MAX_SIZE is the highest # of elements an IntSet// can accommodate.//// CONSTRUCTOR// IntSet()// Pre: (none)// Post: The invoking IntSet is initialized to an empty// IntSet (i.e., one containing no relevant elements).//// CONSTANT MEMBER FUNCTIONS (ACCESSORS)// int size() const// Pre: (none)// Post: Number of elements in the invoking IntSet is returned.// bool isEmpty() const// Pre: (none)// Post: True is returned if the invoking IntSet has no relevant// relevant elements, otherwise false is returned.// bool contains(int anInt) const// Pre: (none)// Post: true is returned if the invoking IntSet has anInt as an// element, otherwise false is returned.// bool isSubsetOf(const IntSet& otherIntSet) const//…
In object oriented programming, a(n) ______________ is an object that has been created from an existing template. Question 10 options: class instance method property
Microsoft Visual C# 7th edition. In Chapter 7, you modified the GreenvilleRevenue program to include a number of methods. Now, using your code from Chapter 7 Case Study 1, modify your program so every data entry statement uses a TryParse() method to ensure that each piece of data is the correct type. Any invalid user entries should generate an appropriate message that contains the word Invalid, and the user should be required to reenter the data. Cengage requirement for the shaded part is attached and I don't understand it. I need help with the highlighted part (getContestantData() method) please. Thanks using System; using static System.Console; using System.Globalization; class GreenvilleRevenue { static void Main() { int numLastYear; int numThisYear; double revenue; int fee = 25; const int MAX_CONTESTANTS = 30; string[] names = new string[MAX_CONTESTANTS]; char[] talents = new char[MAX_CONTESTANTS]; char[] talentCodes = { 'S', 'D', 'M', 'O'…
Fill-in-the-Blank A constructor is automatically called when an object is _________.
class Book: book_belongs_to = 'Schulich School of Engineering' def _init_(self, pages = 0, title = 'Unknown', author = 'Unknown', isbn = self.pages = pages self.title = title e): self.author = author self.isbn = isbn book1 = Book(255, 'Black Beauty', 'Anna Sewell', 9780001840423) book2 = Book(208, 'The Chrysalids', 'John Wyndham', 9780140013085) Book.book_belongs_to = 'Emily Marasco' book3 = Book()
Challenge 3: Vehicle.java, Automobile.java, Tank.java, Truck.java, Car.java, and TestVehicle.java Implement the classes that are given in the class diagram. Also implement a TestVehicle class where you will create three objects and execute their toString() methods. >> Automobile assignment2 a licensePlate: String make: String Automobile() Automobile(int,double, String, String) getLicensePlate(): String setLicense Plate(String):void ●getMake(): String setMake(String):void .toString(): String >> Ⓒ Truck assignment2 a towCapacity: double Truck() Truck(int, double, String, String, double) getTowCapacity():double setTowCapacity (double):void toString(): String Sample output > Vehicle assignment2 □ year: int weight: double Vehicle() Vehicle(int, double) getYear(): int setYear(int):void getWeight():double setWeight(double):void .toString(): String > Car assignment2 a maxPassengers: int Car() Car(int,double, String, String,int) getMaxPassengers() int setMaxPassengers (int):void toString():…
The [BLANK] method is automatically called when an object is created. O str_ O _object_ O _init, O init
A(n)_________ object is created via the OpenText method.
A constant object must be__________ ; it cannot be modified after it’s created.
// CONSTANT// static const int DEFAULT_CAPACITY = __10__// IntSet::DEFAULT_CAPACITY is the initial capacity of an// IntSet that is created by the default constructor (i.e.,// IntSet::DEFAULT_CAPACITY is the highest # of distinct// values "an IntSet created by the default constructor"// can accommodate).//// CONSTRUCTOR// IntSet(int initial_capacity = DEFAULT_CAPACITY)// Post: The invoking IntSet is initialized to an empty// IntSet (i.e., one containing no relevant elements);// the initial capacity is given by initial_capacity if// initial_capacity is >= 1, otherwise it is given by// IntSet:DEFAULT_CAPACITY.// Note: When the IntSet is put to use after construction,// its capacity will be resized as necessary.//// CONSTANT MEMBER FUNCTIONS (ACCESSORS)// int size() const// Pre: (none)// Post: Number of elements in the invoking IntSet is returned.// bool isEmpty() const// Pre: (none)//…