What would be missing line of code Write the InputLectures() function in the Collection class. Within InputLectures(), use cin to read pairs of inputs, integercurrDuration and string currTopic, until -1 is read from input. Create a Lecture object with currDuration and currTopic asarguments and append the object to vector lectureList.Ex: If the input is 141 Cooking 157 Cars 170 Science 124 Medicine -1, then the output is:Lecture duration: 141, Topic: CookingLecture duration: 157, Topic: CarsLecture duration: 170, Topic: ScienceLecture duration: 124, Topic: Medicine1 #include 2 #include 3 using namespace std;45 class Lecture {678918public:void Set Details(int newDuration, string newTopic);void Print () const;101112 };1314 void Lecture::SetDetails(int newDuration, string newTopic) {duration = newDuration:15CS CJprivate:int duration;string topic;D- Write the InputLectures() function in the Collection class. Within InputLectures(), use cin to read pairs of inputs, integercurrDuration and string currTopic, until -1 is read from input. Create a Lecture object with currDuration and currTopic asarguments and append the object to vector lectureList.Ex: If the input is 141 Cooking 157 Cars 170 Science 124 Medicine -1, then the output is:Lecture duration: 141, Topic: CookingLecture duration: 157, Topic: CarsLecture duration: 170, Topic: ScienceLecture duration: 124, Topic: Medicine1819 void Lecture::Print () const {20 cout << "Lecture duration: " << duration <<", Topic: " << topic << endl;21 }2223 class Collection {242526272829 };3031 * Your code goes here /3233 void Collection::Print Lectures () {34unsigned int i;35Lecture currLecture;36public:void Input Lectures();void Print Lectures();vector lectureList;private:1CS ScannCheckNext level2Camscanner3

Initialize currDuration and currTopic variables. While input is not -1: a. Read an integer from…

Write the InputLectures() function in the Collection class. Within InputLectures(), use cin to read pairs of inputs, integer currDuration and string currTopic, until -1 is read from input. Create a Lecture object with currDuration and currTopic as arguments and append the object to vector lectureList. Ex: If the input is 141 Cooking 157 Cars 170 Science 124 Medicine -1, then the output is: Lecture duration: 141, Topic: Cooking Lecture duration: 157, Topic: Cars Lecture duration: 170, Topic: Science Lecture duration: 124, Topic: Medicine

Write the InputLectures() function in the Collection class. Within InputLectures(), use cin to read pairs of inputs, integer currDuration and string currTopic, until -1 is read from input. Create a Lecture object with currDuration and currTopic as arguments and append the object to vector lectureList. Ex: If the input is 141 Cooking 157 Cars 170 Science 124 Medicine -1, then the output is: Lecture duration: 141, Topic: Cooking Lecture duration: 157, Topic: Cars Lecture duration: 170, Topic: Science Lecture duration: 124, Topic: Medicine

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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The function remove of the class arrayList removes only the first occurrence of an element. Add the function removeAll to the class arrayList that would remove all occurrences of a given element. Also, write the definition of the function removeAll and a program to test this function
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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.
Q1. Given the following set: pets = {"cat", "dog", "horse"}, replace the word "dog" with "cow". You cannot assume that you know the index of "dog" - you must find it using code.