CPL TW#3 refined

// Adjust the number of students by replacing 3 by any value u want
#include
#include
#include

class STUDENT
{
private :
int rollno,m1,m2,m3,ttl;
char gr;
char name[31];
public :
void getdata();
void dispdata();
friend void list(STUDENT*);
};
void STUDENT :: getdata()
{
cout << "ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :";
cin >> rollno >> name >> m1 >> m2 >> m3;
ttl=m1+m2+m3;
if(ttl>=180)
{
gr='A';
}
if(ttl<180 && (ttl>=150))
{
gr='B';
}
if(ttl<150 && (ttl>=105))
{
gr='C';
}
if(ttl<105)
{
gr='D';
}
}
void STUDENT :: dispdata()
{
cout << "DATA :";
cout << rollno << " " << name << " " << m1 << " " << m2 << " " << m3 << " " << ttl << " " << gr << endl;
}
void list(STUDENT s[])
{
int n=3;
int i,j,pass,swtch=1;
STUDENT temp;
for(pass=1;pass {
for(i=0;i { swtch=0;
if(s[i].ttl {
temp=s[i];
s[i]=s[i+1];
s[i+1]=temp;
swtch=1;
}
}

}

}
void main()
{
STUDENT s1[3];
STUDENT s[3];
int i;

ofstream f2 ("trial.bf",ios::binary);
if(!f2)
{
cout << "Can not open the file";
getch();
};

for(i=0;i<3;i++)
{
s[i].getdata();
s[i].dispdata();
}
list(s);
for(i=0;i<3;i++)
{
f2.write((char *) &s[i],sizeof(STUDENT));
}
cout << "File is created" << endl;
f2.close();

ifstream f1 ("trial.bf");
if(!f1)
{
cout <<"can not open the file";
}
f1.read((char*) &s1,sizeof(s1));
cout << "Reading is complete:";
cout << endl << "WELCOME";
cout << endl << "LIST IS" << endl;
list(s);
for(i=0;i<3;i++)
{
s1[i].dispdata();
}
getch();
}
/*
********OUTPUT***********
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :126
FRANK
78
87
60
DATA :126 FRANK 78 87 60 225 A
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :120
RON
56
54
50
DATA :120 RON 56 54 50 160 B
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :134
RIA
80
89
90
DATA :134 RIA 80 89 90 259 A
File is created
Reading is complete:
WELCOME
LIST IS
DATA :134 RIA 80 89 90 259 A
DATA :126 FRANK 78 87 60 225 A
DATA :120 RON 56 54 50 160 B
*/



The BINARY FILE CREATED—TRIAL.BF

† P Y Z ARIA ¬ À“0 z òÿ
7z Ä ¬ …#~ N W < á AFRANK À“0 | òÿ
7| Æ ® …#x 8 6 2 BRON ž
D z
Ä ¬ Ä ¸ä •

She is the girl

She is the girl
That laughs at me
She is the girl
That sweets me off my feet
She is the girl
Thats good at all sports
She is the gurl
I stare at in those spandex shorts
She is the girl
That controls the courts
She is the girl
That has guys from all sorts
She is the girl
Thats related to VJ
She is the girl
That is so nice and sweet
She is the girl
That I will take by the hand
She is the one to whom ill be sayin
Will you marry me sam
She is the girl
I am waiting for
She is the girl
Yet hidden and enclosed

CPL TW5

TW#5

#include
#include
#include
#include
class matrix
{
private:
int a[5][5],b[5][5],c[5][5];
int i,j,k,m,n,p,q;
public:
void getdata()
{

cout<<"Enter max. rows in matrix a:";
cin>>m;
cout<<"Enter max. columns in matrix a:";
cin>>n;
cout<<"Enter max. rows in matrix b:";
cin>>p;
cout<<"Enter max. columns in matrix b";
cin>>q;
if(n!=p)
{
cout<<"Multiplication not possible";
getch();
exit(0);
}
else
{
cout<<"\nMatrix A:";
i=0,j=0;
for(i=0;i for(j=0;j {
cout<<"enter element "< cin>>a[i][j];
}
cout<<"\nMatrix B:";
i=0,j=0;
for(i=0;i for(j=0;j {
cout<<"enter element "< cin>>b[i][j];
}
}


}
void cal()
{
for(i=0;i<5;i++)
for(j=0;j<5;j++)
c[i][j]=0;

for(i=0;i for(j=0;j for(k=0;k c[i][j]=c[i][j]+a[i][k]*b[k][j];
}

void display()
{
cout<<"\nMatrix A:" << endl;
for(i=0;i {
for(j=0;j {

cout< }
cout << endl;
}
cout<<"\nMatrix B:"<< endl;
for(i=0;i {
for(j=0;j {
cout< }
cout << endl;
}
cout<<"\nResultant Matrix is:"<< endl;
for(i=0;i {
for(j=0;j {
cout< }
cout << endl;
}
}

};
void main()
{
clrscr();
matrix m1;
ofstream f1("c:\\matrix.txt",ios::out);
if(!f1)
{
cout<<"Cannot open the file";
getch();
}
m1.getdata();
m1.cal();
f1.write((char *) & m1,sizeof(m1));
cout<<"\nFile Created";
f1.close();

ifstream f2("c:\\matrix.txt");
if(!f2)
{
cout<<"Cannot open file";
getch();
}
f2.read((char *) & m1,sizeof(m1));
m1.display();
f2.close();

getch();

}
/*
Enter max. rows in matrix a:3
Enter max. columns in matrix a:3
Enter max. rows in matrix b:3
Enter max. columns in matrix b3

Matrix A:enter element 1,1?1
enter element 1,2?0
enter element 1,3?0
enter element 2,1?0
enter element 2,2?1
enter element 2,3?0
enter element 3,1?0
enter element 3,2?0
enter element 3,3?1

Matrix B:enter element 1,1?1
enter element 1,2?2
enter element 1,3?3
enter element 2,1?4
enter element 2,2?5
enter element 2,3?6
enter element 3,1?7
enter element 3,2?8
enter element 3,3?9

File Created
Matrix A:
1 0 0
0 1 0
0 0 1

Matrix B:
1 2 3
4 5 6
7 8 9

Resultant Matrix is:
1 2 3
4 5 6
7 8 9
*/

CPL TW3

TW#3
// Adjust the number of students by replacing 3 by any value u want
#include
#include
#include

class STUDENT
{
private :
int rollno,m1,m2,m3,ttl;
char gr;
char name[31];
public :
void getdata();
void dispdata();
friend void list(STUDENT*);
};
void STUDENT :: getdata()
{
cout << "ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :";
cin >> rollno >> name >> m1 >> m2 >> m3;
ttl=m1+m2+m3;
if(ttl>=180)
{
gr='A';
}
if(ttl<180 && (ttl>=150))
{
gr='B';
}
if(ttl<150 && (ttl>=105))
{
gr='C';
}
if(ttl<105)
{
gr='D';
}
}
void STUDENT :: dispdata()
{
cout << "DATA :";
cout << rollno << " " << name << " " << m1 << " " << m2 << " " << m3 << " " << ttl << " " << gr << endl;
}
void list(STUDENT s[])
{
int n=3;
int i,j,pass,swtch=1;
STUDENT temp;
for(pass=1;pass {
for(i=0;i { swtch=0;
if(s[i].ttl {
temp=s[i];
s[i]=s[i+1];
s[i+1]=temp;
swtch=1;
}
}

}

}
void main()
{
STUDENT s1;
STUDENT s[3];
int i;

ofstream f2 ("trial.bf",ios::binary);
if(!f2)
{
cout << "Can not open the file";
getch();
};

for(i=0;i<3;i++)
{
s[i].getdata();
s[i].dispdata();
}
list(s);
for(i=0;i<3;i++)
{
f2.write((char *) &s[i],sizeof(STUDENT));
}
cout << "File is created" << endl;
f2.close();

ifstream f1 ("trial.bf");
if(!f1)
{
cout <<"can not open the file";
}
f1.read((char*) &s,sizeof(s));
cout << "Reading is complete:";
cout << endl << "WELCOME";
cout << endl << "LIST IS" << endl;
list(s);
for(i=0;i<3;i++)
{
s[i].dispdata();
}
getch();
}
/*
********OUTPUT***********
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :126
FRANK
78
87
60
DATA :126 FRANK 78 87 60 225 A
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :120
RON
56
54
50
DATA :120 RON 56 54 50 160 B
ENTER DATA IN SEQUENCE OF ROLLNO,NAME,MARKS IN 3 SUBJECTS :134
RIA
80
89
90
DATA :134 RIA 80 89 90 259 A
File is created
Reading is complete:
WELCOME
LIST IS
DATA :134 RIA 80 89 90 259 A
DATA :126 FRANK 78 87 60 225 A
DATA :120 RON 56 54 50 160 B
*/
The BINARY FILE CREATED—TRIAL.BF

† P Y Z ARIA ¬ À“0 z òÿ
7z Ä ¬ …#~ N W < á AFRANK À“0 | òÿ
7| Æ ® …#x 8 6 2 BRON ž
D z
Ä ¬ Ä ¸ä •

CPL TW2

TW#2

#include
#include

class string
{
private :
int len;
char a[80];
public:
void getdata();
void display();
friend string operator+( string s1 , string s2);
friend void copy();
friend void paly();
friend void rever();
};
void string :: getdata()
{
cout << "ENTER THE STRING:";
cin >> a;
int i;
i=0;
while((a[i]!='\0') && (i<80) )
{
i++;
}
len=i;
}

void string :: display()
{
cout << endl << a;
}

string operator+( string s1, string s2)
{
string s;
char str[25],str1[10],str2[10];
char *p,*p1;
int len1,len2;
len1=s1.len;
len2=s2.len;
int i,j;


p=s1.a; p1=s2.a;


for(i=0;i<25;i++)
s.a[i]=0;

cout<<"STRING IS:";
for(i=0;i s.a[i]=*(p+i);

for(j=0;j {
s.a[i]=*(p1+j);
i++;
}


s.len=len1+len2;
return s;
}

void copy()
{
string s1,s2;
char str1[20],str2[20],*p,*p1;
int i;
cout<<"WELCOME TO COPY THE STRING";
s1.getdata();

p=s1.a;

for(i=0;i<20;i++)
s2.a[i]=0;
cout<<"THE COPIED STRING IS:";
for(i=0;i s2.a[i]=*(p+i);

cout<}

void paly ()
{
string s;
int flag=0,i,len=0;
char str[50],*p;
cout << "WELCOME TO TEST THE PALINDROME PROPERTY" << endl ;
s.getdata();
p=s.a;


for(i=0;i {
if(*(p+i)!=*(p+(s.len-i-1)))
flag++;
}
if(flag==0)
cout<<"\nTHE STRING IS PALINDROME.";
else
cout<<"\nTHE STRING IS NOT PALINDROME.";
}
void rever()
{
string s;
char str[10];
char *p,*p1;
int len=0,i;
cout << "WELCOME TO REVERSE THE STRING " << endl ;
s.getdata();

p1=s.a;
cout<<"REVERSED STRING IS:";
for(i=s.len;i>=0;i--)
cout<<*(p1+i);
getch();
}

void main()
{
string p,q,r;
int i,j;
int c;
clrscr();
cout << "WELCOME";
do {
cout << endl << "1.Read & display a string.";
cout << endl << "2.Reverse a string";
cout << endl << "3.Copy the string";
cout << endl << "4.Concatenate the strings";
cout << endl << "5.To test property Palindrome";
cout << endl << "6.Exit";
cout << endl << "Enter ur choice:";
cin >> c;

switch(c)
{
case 1 :
p.getdata();
cout << "Entered string is : " << endl;
p.display();
break;
case 2 :
rever();
break;
case 3 :
copy();
break;
case 4 :
p.getdata();
q.getdata();
cout << "ENTERED DATA IS:";
p.display();
cout << endl;
q.display();
(p+q).display();
break;
case 5 :
paly();
break;
}
}
while(c!=6);
}
/*
WELCOME
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:1
ENTER THE STRING:INDIA
Entered string is :

INDIA
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:2
WELCOME TO REVERSE THE STRING
ENTER THE STRING:COMPUTER
REVERSED STRING IS: PUTER
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:3
WELCOME TO COPY THE STRINGENTER THE STRING:PARADISE
THE COPIED STRING IS:PARADISE
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:4
ENTER THE STRING:Mr.
ENTER THE STRING:RON
ENTERED DATA IS:
Mr.

RON
STRING IS:
Mr.RON
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:5
WELCOME TO TEST THE PALINDROME PROPERTY
ENTER THE STRING:appa

THE STRING IS PALINDROME.
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:5
WELCOME TO TEST THE PALINDROME PROPERTY
ENTER THE STRING:new

THE STRING IS NOT PALINDROME.
1.Read & display a string.
2.Reverse a string
3.Copy the string
4.Concatenate the strings
5.To test property Palindrome
6.Exit
Enter ur choice:6
*/

CPL TW1

#include
#include
#include
#include

class emp
{
private:
int eid;
char ename[21];
char level;
int sal;
public:
void getdata()
{
cout << "Enter data:";
cin >> eid >> ename >> level >> sal;
}
void dispdata()
{
cout << "data is";
cout << eid << " " << ename << " " << level << " " << sal;
}
int id()
{
return eid;
}
};

emp *em[20];
int n=0;

void addrec()
{
char ch;
do {
em[n]=new emp;
em[n]->getdata();
n++;
cout << "Wanna enter another(y/n) :";
cin >> ch;
}
while (ch=='y');
}

void search()
{
int d,i=0;
cout << "enter eid:";
cin >> d;
int p=1;
while(i<=n)
{
if(em[i]->id()==d)
{
cout << "Data found:";
em[i]->dispdata();
p=0;
break;
}
else
{i++;
}
}
if(p!=0)
{
cout << "Data not found.";
}
}

void list()
{
cout << "List is :";
int i=0;
for(i=0;i{
em[i]->dispdata();
cout << endl;
}
}

void delet()
{
int d,i=0;
cout << "Enter the emp id:";
cin >> d;
int p=1;
while(i<=n)
{
if(em[i]->id()==d)
{
cout << "Data found:";
p=0;
break;
}
else
{i++;
}
}
if(p!=0)
{
cout << "Data not found.";
}
else
{
int x;
for(x=i;x{
em[x]=em[x+1];
}
cout << "The record is deleted";
n--;
}
}
void main()
{
int i,j;
int c;
cout << "WELCOME";
do {
cout << endl << "1..Add a record";
cout << endl << "2.search";
cout << endl << "3.list";
cout << endl << "4.Delete a record";
cout << endl << "5.exit";
cout << endl << "Enter ur choice:";
cin >> c;

switch(c)
{
case 1 :
addrec();
break;
case 2 :
search();
break;
case 3 :
list();
break;
case 4 :
delet();
break;
}
}
while(c!=5);
}