Memory Management

What is the output of following program?


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Practice Memory Management –

What is the output of following program?

#include 

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;

}

What is the output of following program?


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Practice Memory Management –

What is the output of following program?

#include 

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();

}

Find the output of following program?


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Practice Memory Management –

Find the output of following program?

#include 

class Test

{

public:

    void fun();

};

static void Test::fun()   

{

    std::cout<<"fun() is static
";

}

int main()

{

    Test::fun();   

    return 0;

}

Predict the output of following program.


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Practice Memory Management –

Predict the output of following program.

#include

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;

}

How “Late binding” is implemented in C++?

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Practice Memory Management –

How “Late binding” is implemented in C++?

If we create a file by ‘ifstream’, then the default mod

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Practice Memory Management –

If we create a file by ‘ifstream’, then the default mode of the file is ______________.

To perform stream I/O with disk files in C++, you should

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Practice Memory Management –

To perform stream I/O with disk files in C++, you should

An array element is accessed using

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Practice Memory Management –

An array element is accessed using

If an array is declared as
int a[4] = {3, 0, 1, 2}, then values

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Practice Memory Management –

If an array is declared as
int a[4] = {3, 0, 1, 2}, then values assigned to a[0] & a[4] will be ________. 

In C++, dynamic memory allocation is accomplished with the operator

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Practice Memory Management –

In C++, dynamic memory allocation is accomplished with the operator ____________.

Which of the following jobs are NOT performed by a

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Practice Memory Management –

Which of the following jobs are NOT performed by a Garbage Collector?

  1. Freeing memory on the stack.
  2. Avoiding memory leaks.
  3. Freeing memory occupied by unreferenced objects.
  4. Closing unclosed database collections.
  5. Closing unclosed files.