Question

#include <iostream>
using namespace std;

int main(void)
{
   int SIZE;
   cout<<"Enter the size of the array"<<endl;
   cin>>SIZE;

    int *numlist = new int[SIZE];

    // Read SIZE integers from the keyboard
    for (int i = 0; i<SIZE; i++ )
   {
       cout << "Enter value #" << i+1 << ": ";
       cin >> numlist[i];
    }
    // Display the numbers in a reverse order
    for (int i = SIZE; i > 0; i-- )
   {
       cout << "Value #" << i << ": ";
       cout << numlist[i-1] << endl; //Pay attention to i-1!
    }
   delete[] numlist;
   return 0;
}

Exercise 12.2
Define a class Student that has as its members the student_name and a student_ idnumber both of type string. Input from the keyboard the number of students in the database, then create a dynamic array of type Student and input the information for each student. Once you populate the database (stored all information), display the entire database. Remember to delete the dynamic array pointer before exiting the program.

C++

Answer 1

#include <iostream>

using namespace std;

class Student

{

public:

string student_name;

int student_idnumber;

};

int main(void)

{

int n=0;

cout<<"enter the number of students : ";

cin>>n;

Student* student=new Student[n];

for(int i=0;i<n;i++)

{

cout<<"\nenter the name of student "<<i+1<<" : ";

cin>>student[i].student_name;

cout<<"\nenter the id of student "<<i+1<<" : ";

cin>>student[i].student_idnumber;

}

cout<<"\nThe list of students is:";

for(int i=0;i<n;i++)

{

cout<<"\nName : "<<student[i].student_name<<" , id : "<<student[i].student_idnumber;

}

delete[] student;

}

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