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CBSE Computer Science - Revision Tour(Solved)

CBSE Guess > eBooks > Class XII > CBSE Computer Science Pointer Solved Revision Tour By Mr. Ravi Kiran

COMPUTER SCIENCE POINTER

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2006 Delhi:

1.d) Find the output of the following program:

#include<iostream.h>
#include<string.h>
class state
{ char *state_name;
int size;
public:
state( )
{ size=0;
state_name=new char[size+1];
}
state(char *s)
{ size=strlen(s);
state_name=new char[size+1];
strcpy(state_name,s);
}
void display( )
{ cout<<state_name<<endl;
}
void Replace(state &a, state &b)
{ size=a.size+b.size;
delete state_name;
state_name=new char[size+1];
strcpy(state_name,a.state_name);
strcat(state_name,b.state_name);
}
};
void main( )
{ char *temp=”Delhi”;
state
state1(temp),state2(“Mumbai”),state3(“Nagpur”),S1,S2;
S1.Replace(state1,state2);
S2.Replace(S1,state3);
S1.display( );
S2.display( );}

3


 

2006 Outside Delhi:

1.d) Find the output of the following program:

#include<iostream.h>#include<string.h>
class student
{ char *name;
int I;
public:
student( )
{ I=0;
name=new char[I+1];
}
student(char *s) { I=strlen(s);
name=new char[I+1];
strcpy(name,s); }
void display( )
{ cout<<name<<endl; }
void manipulate(student &a, student &b)
{
I=a.I+b.I;
delete name;
name=new char[I+1];
strcpy(name,a.name);
strcat(name,b.name);
}
};
void main( )
{ char *temp=”Jack”;
Student name1(temp),name2(“Jill”),name3 (“John”) ,S1,S2;
S1.manipulate(name1,name2);
S2.manipulate(S1,name3);
S1.display( );S2.display( ); }

3

 

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CBSE Computer Science Solved Revision Tour By Mr. Ravi Kiran ( [email protected] )