Problem Solving with C++ (9th Edition)
9th Edition
ISBN: 9780133591743
Author: Walter Savitch
Publisher: PEARSON
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Chapter 15, Problem 6PP
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Novice: How can i access a main class objects from outside the function? / Better Alternative?
If i have 4 Student objects how can i print the information for the specific object given one parameter about the class, like the students Idnumber.
What i came up with was making a checkId void function that takes the user input and runs an if else chain checking if the Id belongs to student 1-4 then printing the details of that classes object with the void function print. ideally i would want the if-else chain in the checkId function to call the print( student1-4) class object but im not sure how to properly do that.
i dont think this is the best way to go about it, if you have any recommendations or alternatives please help me out.
A. Writing an Interface
In this problem you will first write an interface and then modify classes to implement the interface. Write an interface, GeometricSolid, which has one method, volume. The volume method takes no arguments and returns a double.
You are provided with three classes: Cylinder, Sphere, and RightCircularCone Modify the classes so that they implement the GeometricSolid interface. Supply the appropriate method for each class. You can use Google search to find the formula for the volume. Make sure that you use Math.PI in your calculations.
Notice in InterfaceRunner that the objects are added to an ArrayList of GeometricSolids.
since I couldn't fit all images with two screen shots I left the link here
link: https://codecheck.it/files/18040616319p6jy6gzkdzuq08nmlp81251t
IN C++
In your previous class, move the member variables (student name and grades) as private. Create the proper functions to fill data in them. In main, create an instance of that array and fill that instance with data. Call the DisplayInfo() function from main so it prints the content of the object.
A screenshot showing the code in Visual Studio and the output (on the console screen).
previous activity class code:-
#include <iostream>using namespace std;class student{ public: string Name; string grade[3]; void DisplayInfo() { cout<<"Student Name:"<<Name; cout<<"\nGrade:"<<grade[1]; }};int main(){ cout << "Welcome to my world..." << endl; system("pause"); student obj; obj.Name="Rahul"; obj.grade[1]="A++"; obj.DisplayInfo(); return 0;}
Chapter 15 Solutions
Problem Solving with C++ (9th Edition)
Ch. 15.1 - Is the following program legal (assuming...Ch. 15.1 - Prob. 2STECh. 15.1 - Is the following a legal definition of the member...Ch. 15.1 - The class SalariedEmployee inherits both of the...Ch. 15.1 - Give a definition for a class TitledEmployee that...Ch. 15.1 - Give the definitions of the constructors for the...Ch. 15.2 - You know that an overloaded assignment operator...Ch. 15.2 - Suppose Child is a class derived from the class...Ch. 15.2 - Give the definitions for the member function...Ch. 15.2 - Define a class called PartFilledArrayWMax that is...
Ch. 15.3 - Prob. 11STECh. 15.3 - Why cant we assign a base class object to a...Ch. 15.3 - What is the problem with the (legal) assignment of...Ch. 15.3 - Suppose the base class and the derived class each...Ch. 15 - Write a program that uses the class...Ch. 15 - Listed below are definitions of two classes that...Ch. 15 - Solution to Programming Project 15.1 Give the...Ch. 15 - Create a base class called Vehicle that has the...Ch. 15 - Define a Car class that is derived from the...Ch. 15 - Prob. 4PPCh. 15 - Consider a graphics system that has classes for...Ch. 15 - Flesh out Programming Project 5. Give new...Ch. 15 - Banks have many different types of accounts, often...Ch. 15 - Radio Frequency IDentification (RFID) chips are...Ch. 15 - The goal for this Programming Project is to create...Ch. 15 - Solution to Programming Project 15.10 Listed below...Ch. 15 - The computer player in Programming Project 10 does...Ch. 15 - Prob. 12PP
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