C Programming

Which of the following statement is correct about the program given

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Practice Function Overloading –

Which of the following statement is correct about the program given below?

#include  

class LGArray {    

  int array[3][3];    

  public:     

    LGArray(int arr[3][3] = NULL) {    

      if(arr != NULL) {    

        for(int i = 0; i < 3; i++) {       

          for(int j = 0; j < 3; j++) {  

            array[i][j] = i+j;   

          } 

        }

      }

    }

    void Display(void) {   

      for(int i = 0; i < 3; i++) {  

        for(int j = 0; j < 3; j++) {

          cout<< array[i][j] << " ";    

        }

      }

    }

}; 

int main() {   

  LGArray objBA;   

  objBA.Display();   

  return 0;  

}

What will be the output of the following program?

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Practice Constructors and Destructors –

What will be the output of the following program?

#include  

struct Crackexams {    

  int arr[5];      

  public:     

    void TryFunction(void);  

    void Display(void); 

}; 

void Crackexams::Display(void) {  

  for(int i = 0; i < 5; i++) { 

    cout<< arr[i] << " " ; 

  }

} 

void Crackexams::TryFunction(void) {  

  static int i = 0, j = 4;   

  int tmp = arr[i];    

  arr[i]  = arr[j];  

  arr[j]  = tmp   ; 

  i++;    

  j--;  

  if(j != i) {

    TryFunction();

  } 

}

int main() {    

  Crackexams objTry = {{ 5, 6, 3, 9, 0 }};

  objTry.TryFunction(); 

  objTry.Display();    

  return 0; 

}

Which of the following statement is correct about the program given

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Practice Constructors and Destructors –

Which of the following statement is correct about the program given below?

#include 

class Crackexams {  

  int x;     

  float y;    

  public:     

    Crackexams(int x) {   

      x = x;   

    }    

    Crackexams(int p = 0, int q = 10) { 

      x = p += 2;     

      y = q * 1.0f;  

    }   

    void SetValue(int &y, float z) { 

      x = y; 

      y = (int)z;    

    }    

    void Display(void) {   

      cout<< x;    

    } 

}; 

int main() {  

  int val = 12; 

  Crackexams objCrackexams(val);

  Crackexams objTmp();  

  objCrackexams.SetValue(val, 3.14f);   

  objCrackexams.Display();  

  return 0; 

}

What will be the output of the following program?

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Practice Constructors and Destructors –

What will be the output of the following program?

#include 

struct CrackexamsArray {  

  int arr[5];    

  public:    

    void CrackexamsFunction();   

    void Display(); 

}; 

void CrackexamsArray::CrackexamsFunction() {    

  static int i = 0, j = 4; 

  i++;   

  j--;  

  if(j > 0) { 

    CrackexamsFunction(); 

  } 

  int tmp = arr[i]; 

  arr[i]  = arr[j]; 

  arr[j]  = tmp;    

  i--; 

  j++; 

}

void CrackexamsArray::Display() {  

  for(int i = 0; i < 5; i++){  

    cout<< arr[i] << " ";

  } 

}  

int main() {  

  CrackexamsArray objArr = {{5, 6, 3, 9, 0}};

  objArr.CrackexamsFunction();

  objArr.Display();  

  return 0; 

}

What will be the output of the following program?

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Practice Functions –

What will be the output of the following program?

#include 

#include 

class TryString {  

  char x[50]; 

  char y[50];

  char z[50]; 

  public:  

    TryString() { } 

    TryString(char* xx) {  

      strcpy(x, xx);  

      strcpy(y, xx);  

    }    

    TryString(char *xx, char *yy = " C++", char *zz = " Programming!") {   

      strcpy(z, xx);   

      strcat(z, yy);   

      strcat(z, zz); 

    }    

    void Display(void) { 

      cout<< z << endl;   

    } 

}; 

int main() {   

  TryString objStr("Learn", " Java");  

  objStr.Display();    

  return 0; 

}

What will be the output of the following program?

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Practice Functions –

What will be the output of the following program?

#include 

class TestDrive {  

  int x;    

  public:  

    TestDrive(int xx) {     

      x = xx;    

    }  

    int DriveIt(void); 

}; 

int TestDrive::DriveIt(void) {  

  static int value = 0;   

  int m;   

  m = x % 2;    

  x = x / 2;    

  if((x / 2)) {

    DriveIt(); 

  }  

  value = value + m * 10; 

  return value;

} 

int main() {  

  TestDrive TD(1234);   

  cout<< TD.DriveIt() * 10 << endl; 

  return 0;  

}

What will be the output of the following program?

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Practice Functions –

What will be the output of the following program?

#include  

class AreaFinder {   

  float l, b, h;      

  float result;    

  public:     

    AreaFinder(float hh = 0, float ll = 0, float bb = 0) {       

      l = ll;        

      b = bb;       

      h = hh;   

    }    

    void Display(int ll) {        

      if(l = 0) {   

        result = 3.14f * h * h;  

      }  

      else {   

        result = l * b;     

        cout<< result;   

      }

    }

}; 

int main() {  

  AreaFinder objAF(10, 10, 20);  

  objAF.Display(0);   

  return 0;  

}

What will be the output of the following program?

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Practice OOPS Concepts –

What will be the output of the following program?

#include 

class Crackexams {    

  int x, y, z;     

  public:     

    void Apply(int xx = 12, int yy = 21, int zz = 9) {   

      x = xx;   

      y = yy += 10;   

      z = x -= 2;    

    }     

    void Display(void) {        

      cout<< x << " " << y << endl;   

    }     

    void SetValue(int xx, int yy) {    

      Apply(xx, 0, yy);   

    } 

};

int main() {  

  Crackexams *pCrackexams= new Crackexams; 

  (*pCrackexams).SetValue(12, 20);   

  pCrackexams->Display();    

  delete pCrackexams;    

  return 0; 

}

Which of the following statement is correct about the program given

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Practice OOPS Concepts –

Which of the following statement is correct about the program given below?

#include 

class Crackexams {     

  int x, y, z;    

  public:    

    Crackexams(int x = 100, int y = 30, int z = 0) {   

      this->x = x;          

      this->y = y;        

      this->z = z;        

      Display();    

    }     

    void Display() {     

      cout<< x << " " << y << " " << z;  

    }

}; 

int main() {

  int a = 0, b = 1, c = 2;  

  int &x = ++a;    

  int &y = --b;    

  int z = c + b - -c;   

  Crackexams objCrackexams(x, y, z);    

  return 0; 

}

Predict the output of following program.


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Practice Constructors and Destructors –

Predict the output of following program.

#include 

using namespace std;

class A

{

protected:

    int x;

public:

    A() {x = 0;}

    friend void show();

};

 

class B: public A

{

public:

    B() : y (0) {}

private:

    int y;

};

 

void show()

{

    A a;

    B b;

    cout << "The default value of A::x = " << a.x << " ";

    cout << "The default value of B::y = " << b.y;

}

What will be the output of following program? 

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Practice Memory Management –

What will be the output of following program? 

#include

void main()

{

  float x;

  x=(float)9/2;

  cout<
}

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 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;

}

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;

}