Why the following code shows error?

[PK Dey]

Why the following code shows error?

 #include <iostream>
using namespace std;
class student
{
    public:
        int id;
        double gpa;
        student(int x, double y)
        {
          id=x;
          gpa=y;
        }
        void display()
        {
            cout<<id<<" "<<gpa<<endl;  
        }
        void setValue(int x, double y)
        {
            id=x;
            gpa=y;
        }
};
int main()
{
    student alim, suparna, promod, nisha(115, 3.60);
    alim.id=101;
    alim.gpa=3.44;
    cout<<alim.id<<" "<<alim.gpa<<endl;
    suparna.id=105;
    suparna.gpa=3.95;
    suparna.display();
    promod.setValue(110, 3.85);
    promod.display();
    nisha.display();
    return 0;
}

[seeplus]

Because you have defined a constructor that takes arguments, there is now no default constructor - as needed for alim et al.

You need to define a default constructor (a constructor that takes no arguments).

[PK Dey]

Thanks!