Assignment Operator Overloading in C++

#include <iostream>
using namespace std;
 
class Int {
        int i;
    public:
        Int(int ii = 0) : i(ii) { }
        Int operator=(const Int& ii) { i = ii.i; }
        int get() { return i; }
        void set(int ii) { i = ii; }
};
 
int main()
{
    Int a(10), b(20);
 
    cout << "Initial values" << endl;
    cout << "a::i = " << a.get() << endl;
    cout << "b::i = " << b.get() << endl;
    cout << "After operation a = b" << endl;
    a = b;
    cout << "a::i = " << a.get() << endl;
    cout << "b::i = " << b.get() << endl;
}

Output:
Initial values
a::i = 10
b::i = 20
After operation a = b
a::i = 20
b::i = 20