Code:
#include<iostream.h>
#include<cstring>
#include<cstdlib>
#include<fstream.h>
#include <iomanip>
#define Channel 200
#define Y true
#define N false
#define True 0 /* Allies for Zero*/
#define False 1 /* Allies for ONE*/
class Student;
class Person{
protected:
char *Name;
char *ID;
char *Email;
char *Phone;
public:
Person();
~Person();
};
class Student : public Person{
private:
char *Major;
Student *next;
public:
Student();
void setName(char *);
void setID(char *);
void setPhone(char *);
void setEmail(char *);
void setMajor(char *);
void setNext(Student *);
char* getName()const{return Name;}
char* getID()const{return ID;}
char* getPhone()const{return Phone;}
char* getEmail()const{return Email;}
char* getMajor()const{return Major;}
Student *getNext()const{return next;}
void addStudent (char *,char *,char *,char *,char *,Student *&);
~Student();
};
/*Opening all the file to run an make linklist after file processing*/
void funOpenFile(Student *&);
/*functions used for processing Student.dat file, and make a linklist*/
void StudentGetData (fstream &,Student *&);
void Sdatastore(int ,char *,Student *&);
void showStudent(Student *);
Person::Person()
{
Name = new char[30];
ID = new char[10];
Email = new char[30];
Phone = new char[15];
}
Person::~Person()
{
delete[] Name;
delete[] ID;
delete[] Email;
delete[] Phone;
}
Student::Student():Person()
{
Major = new char[30];
next = NULL;
}
Student::~Student()
{
delete[] Major;
}
int main()
{
Student *ptrStartStud = NULL;
funOpenFile(ptrStartStud);
showStudent(ptrStartStud);//Enable to check nothing is wrong while loading the LinkList
return 0;
}
void funOpenFile (Student *&rootStudent)
{
fstream StudentFileInPtr;
StudentFileInPtr.open("Student.dat",ios::in);
if(StudentFileInPtr.fail())
{
cerr<<"Error Opening The File"<<endl;
}
else
{
StudentGetData (StudentFileInPtr,rootStudent);
}
}
void StudentGetData (fstream &ReadFileInPtr,Student *&topStudent)
{
char *chtokenPtr,szPharseFile[Channel];
int ncounter = 0;
while(!(ReadFileInPtr.getline(szPharseFile,200,'\n')).eof())
{
chtokenPtr = strtok(szPharseFile,"\t");
while(chtokenPtr != NULL)
{
ncounter++;
if(ncounter == 6 )
{
ncounter = 1;
}
Sdatastore(ncounter,chtokenPtr,topStudent);
chtokenPtr = strtok(NULL,"\t\n");
}
}
}
void Sdatastore(int ncounter,char *prtokenPtr,Student *&topStudent)
{
static char szName[30],szID[9],szEmail[30],szPhone[13],szMajor[30];
enum Status{stage1 = 1,stage2,stage3,stage4,stage5};
Student NewPtrI;
switch(ncounter)
{
case stage1:
{
strcpy(szName,prtokenPtr);
break;
}
case stage2:
{
strcpy(szID,prtokenPtr);
break;
}
case stage3:
{
strcpy(szEmail,prtokenPtr);
break;
}
case stage4:
{
strcpy(szPhone,prtokenPtr);
break;
}
case stage5:
{
strcpy(szMajor,prtokenPtr);
NewPtrI.addStudent(szName,szID,szEmail,szPhone,szMajor,topStudent);
break;
}
}
}
void Student::setName(char *szName)
{
strcpy(Name,szName);
}
void Student::setID(char *szID)
{
strcpy(ID,szID);
}
void Student::setEmail(char *szEmail)
{
strcpy(Email,szEmail);
}
void Student::setPhone(char *szPhone)
{
strcpy(Phone,szPhone);
}
void Student::setMajor(char *szMajor)
{
strcpy(Major,szMajor);
}
void Student::setNext(Student *setnext)
{
next = setnext;
}
void Student::addStudent (char *prName,char *prID,char *prEmail,char *prPhone,char *prMajor,Student *&root)
{
Student *ptrNewStudent;
ptrNewStudent = new Student;
if(ptrNewStudent != NULL)
{
ptrNewStudent->Name = new char[strlen(prName)+1];
if(ptrNewStudent->Name != NULL)
{
ptrNewStudent->setName(prName);
}
ptrNewStudent->ID = new char[strlen(prID)+1];
if(ptrNewStudent->ID != NULL)
{
ptrNewStudent->setID(prID);
}
ptrNewStudent->Email = new char[strlen(prEmail)+1];
if(ptrNewStudent->Email != NULL)
{
ptrNewStudent->setEmail(prEmail);
}
ptrNewStudent->Phone = new char[strlen(prPhone)+1];
if(ptrNewStudent->Phone != NULL)
{
ptrNewStudent->setPhone(prPhone);
}
ptrNewStudent->Major = new char[strlen(prMajor)+1];
if(ptrNewStudent->Major != NULL)
{
ptrNewStudent->setMajor(prMajor);
}
if(root == NULL)
{
root = ptrNewStudent;
}
else
{
ptrNewStudent->setNext(root);
root = ptrNewStudent;
}
}
else
{
cerr<<"Memory Allocation Problem"<<endl;
}
}
void showStudent(Student *root)
{
Student *newStudentPtr = root;
while(newStudentPtr != NULL)
{
cout<<newStudentPtr->getName()<<"\t"<<newStudentPtr->getID()<<"\t"<<newStudentPtr->getEmail()<<"\t"<<newStudentPtr->getPhone()<<"\t"<<newStudentPtr->getMajor()<<endl;
newStudentPtr = newStudentPtr->getNext();
}
}
----------------------OutPut--------------------------
Quick LinkList Help!!adding at the End
Thanks
