Answer to Question #270943 in C++ for jye

Question

Defines the Array class that represents an array of integers. Please fulfill the following requirements

constructor, destructor, copy constructor

The function allows inputting data from the keyboard and the function displays to the screen for Array (2 functions)

The function allows to assign (write) and the function to get (read) the value of a certain element in the Array (2 functions)

Write a main program that illustrates how to use it

Answer 1

#include <iostream>
using namespace std;
class Array{
    static const int MAX_SIZE = 100;
    int size = 0;
    int array[MAX_SIZE];


    public:
    Array(){}
    void inputData(){
        cout<<"Enter size of array: ";
        cin>>size;
        cout<<"Enter elements\n";
        for(int i = 0; i < size; i++){
            cin>>array[i];
        }
    }
    void display(){
        for(int i = 0; i < size; i++){
            cout<<array[i]<<" ";
        }
        cout<<endl;
    }
    void write(int index, int data){
        if(0 <= index && index < size){
            array[index] = data;
        }
    }
    int read(int index){
        if(0 <= index && index < size) return array[index];
        return INT_MIN;
    }
    ~Array(){}
    Array(Array &other){
        this->size = other.size;


        for(int i = 0; i < size; i++){
            this->array[i] = other.array[i];
        }
    }
};


int main(){
    Array array;
    array.inputData();
    cout<<"Your array is\n";
    array.display();


    Array array2(array);
    cout<<"Using copy constructor\n";
    array2.display();


    cout<<"Changing element at index 0 to 123\n";
    array.write(0, 123);


    cout<<"Your array is\n";
    array.display();
    cout<<"Element at index 0 is "<<array.read(0)<<endl;
    return 0;
}