CBSE Class 12 Computer Science Practicals Notes

1. Write a Program in C++ (telephone directory simulation) that can sort telephone number. Names to be treated as a uni Define them inside a structure.

2. Write a program in C++ to defined and use (Read and Display object) a class named

ADMISSION with the following description:

Private e bers :

AD_NO integer type 10-2000

NAME Array of Characters

CLASS Characters FEES float type Public Me bers :

READ_DATA( ) To read and object of ADMISSION type

DISPLAY( ) To display the details of object.

3. Write a program to declare and use a class Bank_ Account for 5 customers with the following data members Name of depositor. Account Number, Type of Account (S for saving, C for current). The class also contains member functions to do the following.

(i) To initialize data members.

(ii) To deposit money.

(iii) To withdrawal money after checking balance (Minimum balance Rs.1000)

(iv) To display the data members.

4. Define a class clothing in C++ with the following description:

Private members:

            Code of type string

           Type of type string

           Size of type string

           Material of type string

           Price of type float

A function Calc_ Price ( ) which calculate and assigns the value Price as follows:

For the value of Material as II COTTON "

         Type Price (Rs)

         TROUSER 1500

         SHIRT 1200

For Material other than II COTTON II the above mentioned Price gets reduced by 25%. Public members:

• A constructor to assign initial values of Code, Type and material with the word II NOTASSIGNED II and Size and Price with 0.

• A function Enter () to input the values of the data members code, Type, Size and Material and invoke the CalcPrice( ) function.

• A function Show( ) which display the content of all the data members for a clothing.

Write a program to read and write the object of the above class in a file.

5. Write a program in C++ to demonstrate the 3 types of Constructors in a Class class Test

{

  int RegNo, Max, Min, Score;

  public:

         Test();

         Test(int reg, int sc); // assign 100 to max and min

         Test(Test &ob);

       �Test();

        void Display();//to display all the data members

   }

6. Write a program in C++ to demonstrate the use of multilevel inheritance [Hint : Person -> Student -> GraduateStudent ].

7. Write a program in C++ to illustrate order of constructor invocation. class Subject -> class Student -> class Admission

8. Create the following class hierarchy in C++.

9. Assuming the class EMPLOYEE given below, write and call function in C++ to perform the following :

Write the objects of EMPLOYEE to a binary file.

Read the objects of EMPLOYEE from binary file and display them on screen.
class EMPLOYEE

{

        int ENO;

        char ENAME[30];

        public: void GETIT( ) { cin>>ENO ; gets(ENAME); }

        void SHOWIT( ) { cout<<ENO <<" :: II<<ENAME<<endl; }

};

10. Write and call a function in C++ to print the count of lines starting with IIS" or IIs" from a text file

DIALOGUE.TXT. For example, if the content of the file DIALOGUE.TXT is

         Th s s h s book

         Sweet one?

         Set to put

        And mark

        Then the output will be 2.

11. Assuming the class STOCK given below, write and call functions in C++ to perform the following :

 i) Write the object of STOCK to a binary file IIstock.dat" by appending records in it.

ii) Search a record from the file by reading it for which ITNO is given by user 

class STOCK

{

       int ITNO

       char ITEM[30];

       public: void GETIT( ) { cin>>ITNO ; gets(ITEM); }

       void SHOWIT( ) { cout<<ITNO <<" :: II<<ITEM<<endl; }

};

12. Write and call a function in C++ to print the count of word IIthe" as independent word from a file STORY.TXT.

For example, if the content of the file STORY.TXT is

      That s the fu programe

      The same s expected, t s good ke the Taj

      Then output will be 3

13. Write a program in C++ to write records in a binary file PHONE.DAT containing the records of the following structure type class Phonelist

{

     char Name[20];

     char Address[30];

     char AreaCode[5];

     char PhoneNo[15];

                     public:

                          void Register();

                          void Show();

                          int CheckCode(char AC[])

{

    return strcmp(AreaCode, AC);

}

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