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CuriousTab

CuriousTab

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  • Question
  • What will be the output of the following program?
    #include<iostream.h> 
    class Tab
    {
        public:
          int x;
    };
    int main()
    {
        Tab *p = new Tab();
    
        (*p).x = 10;
        cout<< (*p).x << " " << p->x << " " ;
    
        p->x = 20;
        cout<< (*p).x << " " << p->x ;
    
        return 0;
    }


  • Options
  • A. 10 10 20 20
  • B. Garbage garbage 20 20
  • C. 10 10 Garbage garbage
  • D. Garbage garbage Garbage garbage

  • Correct Answer
  • 10 10 20 20 


  • Objects and Classes problems


    Search Results


    • 1. Which of the following statement is correct about the program given below?
      #include<iostream.h>
      #include<string.h> 
      class CuriousTab
      {
          public:
          void GetData(char *s, int x, int y )
          {
              int i = 0;
              for (i = x-1; y>0; i++)
              {
                  cout<< s[i];
                  y--; 
              } 
          }
      }; 
      int main()
      {
          CuriousTab objCuriousTab;
          objCuriousTab.GetData((char*)"Welcome!", 1, 3);
          return 0; 
      }

    • Options
    • A. The program will print the output me!.
    • B. The program will print the output Wel.
    • C. The program will print the output !em.
    • D. The program will print the output Welcome!.
    • E. The program will result in a compile time error.
    • Discuss
    • 2. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      class CuriousTabData
      {
          int x, y, z; 
          public:
          CuriousTabData(int xx, int yy, int zz)
          {
              x = ++xx;
              y = ++yy;
              z = ++zz;
          }
          void Show()
          {
              cout<< "" << x++ << " " << y++ << " " << z++;
          } 
      }; 
      int main()
      {
          CuriousTabData objData(1, 2, 3);
          objData.Show();
          return 0; 
      }

    • Options
    • A. The program will print the output 1 2 3.
    • B. The program will print the output 2 3 4 .
    • C. The program will print the output 4 5 6.
    • D. The program will report compile time error.
    • Discuss
    • 3. What will be the output of the following program?
      #include<iostream.h> 
      class CuriousTabBase
      {
          public:
              float x; 
      }; 
      class CuriousTabDerived : public CuriousTabBase
      {
          public: 
              char ch; 
              void Process()
              {
                  ch = (int)((x=12.0)/3.0);
              }
              void Display()
              {
                  cout<< (int)ch;
              } 
      }; 
      int main()
      {
          class CuriousTabDerived  *objDev = new CuriousTabDerived;
          objDev->Process();
          objDev->Display();
          return 0; 
      }

    • Options
    • A. The program will print the output 4.
    • B. The program will print the ASCII value of 4.
    • C. The program will print the output 0.
    • D. The program will print the output garbage.
    • Discuss
    • 4. Which of the following statement is correct about the program given below?
      #include<iostream.h>
      #include<process.h> 
      class CuriousTab
      {
          static int x; 
          public:
          CuriousTab()
          {
              if(x == 1)
                  exit(0); 
              else
                  x++;
          }
          void Display()
          {
              cout<< x << " ";
          }
      };
      int CuriousTab::x = 0; 
      int main()
      {
          CuriousTab objCuriousTab1; 
          objCuriousTab1.Display(); 
          CuriousTab objCuriousTab2; 
          objCuriousTab2.Display(); 
          return 0; 
      }

    • Options
    • A. The program will print the output 1 2.
    • B. The program will print the output 0 1.
    • C. The program will print the output 1 1.
    • D. The program will print the output 1.
    • E. The program will report compile time error.
    • Discuss
    • 5. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      class CuriousTabBase
      {
          int x, y; 
          public:
          CuriousTabBase(int xx = 10, int yy = 10)
          {
              x = xx;
              y = yy;
          }
          void Show()
          {
              cout<< x * y << endl;
          }
      };
      class CuriousTabDerived
      {
          private:
              CuriousTabBase objBase; 
          public:
          CuriousTabDerived(int xx, int yy) : objBase(xx, yy)
          {
              objBase.Show();
          }
      };
      int main()
      {
          CuriousTabDerived objDev(10, 20);
          return 0; 
      }

    • Options
    • A. The program will print the output 100.
    • B. The program will print the output 200.
    • C. The program will print the output Garbage-value.
    • D. The program will report compile time error.
    • Discuss
    • 6. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      class CuriousTab
      {
          static int x; 
          public:
          static void SetData(int xx)
          {
              x = xx; 
          }
          static void Display() 
          {
              cout<< x ;
          }
      };
      int CuriousTab::x = 0; 
      int main()
      {
          CuriousTab::SetData(44);
          CuriousTab::Display();
          return 0; 
      }

    • Options
    • A. The program will print the output 0.
    • B. The program will print the output 44.
    • C. The program will print the output Garbage.
    • D. The program will report compile time error.
    • Discuss
    • 7. What will be the output of the following program?
      #include<iostream.h> 
      class CuriousTab
      {
          static int count; 
          public:
          static void First(void)
          {
              count = 10;
          }
          static void Second(int x)
          {
              count = count + x; 
          }
          static void Display(void)
          {
              cout<< count << endl;
          } 
      };
      int CuriousTab::count = 0; 
      int main()
      {
          CuriousTab :: First();
          CuriousTab :: Second(5);
          CuriousTab :: Display();
          return 0; 
      }

    • Options
    • A. 0  
    • B. 5
    • C. 10
    • D. 15
    • E. The program will report compile time error.
    • Discuss
    • 8. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      class CuriousTab
      {
          static int x; 
          public:
          static void SetData(int xx)
          {
              x = xx; 
          }
          void Display() 
          {
              cout<< x ;
          }
      };
      int CuriousTab::x = 0; 
      int main()
      {
          CuriousTab::SetData(33);
          CuriousTab::Display();
          return 0; 
      }

    • Options
    • A. The program will print the output 0.
    • B. The program will print the output 33.
    • C. The program will print the output Garbage.
    • D. The program will report compile time error.
    • Discuss
    • 9. Which of the following statement is correct about the program given below?
      #include<iostream.h> 
      class CuriousTabBase
      {
          int x, y; 
          public:
          CuriousTabBase(int xx = 10, int yy = 10)
          {
              x = xx;
              y = yy;
          }
          void Show()
          {
              cout<< x * y << endl;
          }
      };
      class CuriousTabDerived : public CuriousTabBase
      {
          private:
              CuriousTabBase objBase; 
          public:
          CuriousTabDerived(int xx, int yy) : CuriousTabBase(xx, yy)
          {
              objBase.Show();
          }
      };
      int main()
      {
          CuriousTabDerived objDev(10, 20);
          return 0; 
      }

    • Options
    • A. The program will print the output 100.
    • B. The program will print the output 200.
    • C. The program will print the output Garbage-value.
    • D. The program will report compile time error.
    • Discuss
    • 10. What will be the output of the following program?
      #include<iostream.h> 
      class CuriousTabTeam
      {
          int x, y; 
          public:
          CuriousTabTeam(int xx)
          {
              x = ++xx;
          }
          void Display()
          {
              cout<< --x << " ";
          }
      };
      int main()
      {
          CuriousTabTeam objBT(45);
          objBT.Display();
          int *p = (int*)&objBT;
          *p = 23;
          objBT.Display();
          return 0; 
      }

    • Options
    • A. 45 22
    • B. 46 22
    • C. 45 23
    • D. 46 23
    • Discuss


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