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Functions - C++ - C++ Programming Questions and Answers

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Functions - C++ - Programs

  1. What will be the output of the following program?

     #include
 long GateFunction(int x, int y = 5, float z = 5) 
 {   
      return(++x * ++y + (int)++z); 
 } 
 int main() 
 {   
    cout20, 10);     
    return 0;
 }

    2. A.

    237
    B.

    242
    C.

    240
    D.

    35
    E.

    The program will report error on compilation.

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  2. What will be the output of the following program?

     #include
 int GateFunction(int a, int b = 3, int c = 3) 
 {  
      coutreturn 0; 
 }
 int main()
 {
     GateFunction(5, 0, 0);    
     return 0; 
 }

    3. A.

    8
    B.

    6
    C.

    -6
    D.

    -8

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  3. What will be the output of the following program?

      #include
  void MyFunction(int a, int b = 40) 
  {   
      cout" a = "" b = "
  }
   int main() 
  {   
     MyFunction(20, 30);   
     return 0; 
  }

    4. A.

    a = 20 b = 40
    B.

    a = 20 b = 30
    C.

    a = 20 b = Garbage
    D.

    a = Garbage b = 40

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

      #include
  static int b = 0; 
  void DisplayData(int *x, int *y = &b)  
  {   
     cout" int a = 10, b = 20 ;      
      DisplayData(&a, &b);  
      return 0; 
  }

     

    5. A.

    The program will print the output 10 20.
    B.

    The program will print the output 10 0.
    C.

    The program will print the output 10 garbage.
    D.

    The program will report compile time error.

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  5. What will be the output of the following program?

      #include
  typedef void(*FunPtr)(int); 
  int Look(int = 10, int = 20);
  void Note(int); 
  int main()
  {
     FunPtr ptr = Note;   
     (*ptr)(30);    
     return 0; 
 } 
 int Look(int x, int y) 
 {  
    return(x + y % 20); 
 } 
 void Note(int x) 
{   
   cout

    6. A.

    10
    B.

    20
    C.

    30
    D.

    40
    E.

    Compilation fails.

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

      #include
  class Freshergate
  {   
    public:    
   void Gate(int x = 15)   
   {        
        x = x/2;        
        if(x > 0)        
            Gate();       
         else        
            cout2;   
   }  
 }; 
 int main() 
 {   
    FreshergateobjIB;   
    objIB.Gate;    
    return 0;  
}

    7. A.

    The program will display 1.
    B.

    The program will display 2.
    C.

    The program will display 15.
    D.

    The program will go into an infinite loop.
    E.

    The program will report error on compilation.

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

    #include
 long GetNumber(long int Number) 
 { 
    return --Number; 
 } 
 float GetNumber(int Number)
 {   
   return ++Number; 
 } 
 int main() 
 {     
    int x = 20;   
    int y = 30;   
    cout" ";      
    cout
    return 0;  
}

    8. A.

    The program will print the output 19 31.
    B.

    The program will print the output 20 30.
    C.

    The program will print the output 21 31.
    D.

    The program will print the output 21 29.
    E.

    Program will report compile time error.

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  8. What will be the output of the following program?

      #include
  struct MyData
  {  
    public:    
   int Addition(int a, int b = 10)    
   {        
      return (a *= b + 2);     
 }  
   float Addition(int a, float b); 
 };
 int main() 
 {    
     MyData data;
    cout1)" ";       
    cout3, 4);     
    return 0; 
  }

    9. A.

    12 12
    B.

    12 18
    C.

    3 14
    D.

    18 12
    E.

    Compilation fails.

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  9. Which of the following statement is correct about the program given below

     #include
     int GateTest(int x, int y);
     int GateTest(int x, int y, intz=5);

      int main()

     {
    cout2, 4)

    return 0;

    }

    int GateTest(int x, int y)

    {

       return x * y; }

      int GateTest(int x, int y, int z = )   {

      return x * y * z;

    }

     

    10. A.

    The program will print the output 5.
    B.

    The program will print the output 8.
    C.

    The program will print the output 40.
    D.

    The program will report compile time error.

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

      #include
  void Tester(int xx, int yy = 5);
  class Freshergate
  {    
      int x;    
      int y;     
      public:     
      void Tester(int xx, int yy = 5)     
      {      
          x = xx;   
          y = yy;      
         coutint main() 
 {    
     Freshergate objGate;      
     objGate.Tester(5, 5); 
     return 0; 
 }

    11. A.

    The program will print the output 0.
    B.

    The program will print the output 1.
    C.

    The program will print the output 2.
    D.

    The program will print the output garbage value.
    E.

    The program will report compile time error.

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