CBSE Computer Science - Revision Tour(Solved)
CBSE Guess > eBooks > Class XII > CBSE Computer Science Constructors And Destructors Solved Revision Tour By Mr. Ravi Kiran
COMPUTER SCIENCE CONSTRUCTORS AND DESTRUCTORS
OUTSIDE DELHI 2008:
2.b) Answer the questions (i) and (ii) after going through the following program:
#include<iostream.h>
#include<string.h>
class Retail
{ char category[20];
char item[20];
int qty;
float price;
retail () //function 1
{ strcpy (category, “cerial”);
strcpy (Item, “Rice”);
qty =100 ;
price =25 ;
}
public;
void show() //function 2
{ cout << category <<”-“<< Item << “
:”<<Qty<<“@”<< price<<endl;
}
};
void main()
{ Retail R; //statement 1
R. show (); //statement 2
}
(i) will statement 1 initialize all the data
members for objects R with the given in the
function 1 ? (YES OR NO). Justify your
Answer suggesting the corrections(s) to be
made in the above code.
Ans:No. The reason is the constructor should
be defined under the public visibility label.
(ii) What shall be the possible out put when
the program gets executed ? (Assuming, if
required the suggested correction(s) are made
in the program)
Ans: Possible Output:
cerial–Rice:100@25
2.c ) Define a class clothing in c++ with the following descriptions :
private members :
code of type string type of type string size of type intiger
material of type string price of type float
A function calc_price( )which calculates and
assigns the value of GPrice as follows ;
For the value of material as “COTTON” :
Type price (Rs)
TROUSER 1500. SHIRT 1200.
for material other than “COTTON”, the above mentioned GPprice price gets reduced by 25%
public members :
- A constructor to assign initial values of
code ,type and material with the word “NOT
ASSIGNED “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 caclPrice () function.
- A function show which displays the
content of all the data members for a clothing.
#include<iostream.h>
#include<string.h>
#include<conio.h>
#include<stdio.h>
class clothing
{ char Code[21],Type[21];
int size;
char material[21];
float price;
void calc_price( )
{
if(strcmp(strupr(material),"COTTON")==0)
{ if(strcmp(strupr(Type),"TROUSER")==0)
price=1500;
if(strcmp(strupr(Type),"SHIRT")==0)
price=1200;
}
else
{ if(strcmp(strupr(Type),"TROUSER")==0)
price=1500*0.75;
if(strcmp(strupr(Type),"SHIRT")==0)
price=1200*0.75;
}
}
public:
clothing( )
{ strcpy(Code,"NOT ALLOTED");
strcpy(Type,"NOT ALLOTED");
size=0;
strcpy(material,"NOT ALLOTED");
price=0;
}
void enter( )
{ cout<<"\nEnter the Cloth Code: ";
gets(Code);
cout<<"\nEnter the Cloth Type: ";
gets(Type);
cout<<"\nEnter the Cloth Size: ";
cin>>size;
cout<<"\nEnter the cloth material:";
gets(material);
calc_price( );
}
void show( )
{ cout<<"\nThe Cloth Code: "<<Code;
cout<<"\nThe Cloth Type: "<<Type;cout<<"\nThe Cloth Size: "<<size;
cout<<"\nThe Cloth Material: “
<<material;
cout<<"\nThe Cloth Price: "<<price;
} };
void main( )
{ clothing C;
C.enter( );
C.show( );
}
CBSE Computer Science Solved Revision Tour By Mr. Ravi Kiran ( [email protected] ) |