Question 1
#include <iostream>
using namespace std;
class Player
{
private:
int id;
static int next_id;
public:
int getID() { return id; }
Player() { id = next_id++; }
};
int Player::next_id = 1;
int main()
{
Player p1;
Player p2;
Player p3;
cout << p1.getID() << \" \";
cout << p2.getID() << \" \";
cout << p3.getID();
return 0;
}
Question 2
#include <iostream>
class Test
{
public:
void fun();
};
static void Test::fun()
{
std::cout<<\"fun() is static\\n\";
}
int main()
{
Test::fun();
return 0;
}
Question 3
#include<iostream>
using namespace std;
class Test
{
private:
static int count;
public:
Test& fun();
};
int Test::count = 0;
Test& Test::fun()
{
Test::count++;
cout << Test::count << \" \";
return *this;
}
int main()
{
Test t;
t.fun().fun().fun().fun();
return 0;
}
Question 4
#include <iostream>
using namespace std;
class A
{
private:
int x;
public:
A(int _x) { x = _x; }
int get() { return x; }
};
class B
{
static A a;
public:
static int get()
{ return a.get(); }
};
int main(void)
{
B b;
cout << b.get();
return 0;
}
Question 6
#include <iostream>
using namespace std;
class Test
{
static int x;
public:
Test() { x++; }
static int getX() {return x;}
};
int Test::x = 0;
int main()
{
cout << Test::getX() << \" \";
Test t[5];
cout << Test::getX();
}
There are 6 questions to complete.