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5.
. STL
: STL.
, 3. STL list vector.
- .
UML.
1 , Student, - (Stud_Sport), (Group_stud). (Group_stud) Stud_Sport. Group_stud : add_st(Student* st1) ; stud_max_grade() ; diskOut() Stud_Sport ; showData() , ; del_obj() . main() .
Qt Creator 3.0.0 ( Qt 5.2.0). 1 .
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Qt Creator: -> -> Qt -> ++.
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1
// student.h
#define STUDENT_H
#include <string>
using namespace std;
class ErrorStud
{ public:
string message; //
ErrorStud(const string& s): message(s) {}
};
class Student
{ protected:
string fam;
string name;
int grade;
public:
Student();
Student(string fam1, string name1, int grade1);
~Student(){}
string getfam();
string getname();
int getgrade();
void setfam(string fam1);
void setname(string name1);
void setgrade(int grade1);
};
#endif // STUDENT_H
// student.cpp
#include "student.h"
#include <iostream>
using namespace std;
Student::Student()
{ fam = "";
name = "";
grade = 0;
}
Student::Student(string fam1, string name1, int grade1)
{ fam = fam1;
name = name1;
if (grade1 <0 ||grade1 >100) throw ErrorStud(" 0 100!");
else grade = grade1;
}
string Student::getfam() { return fam;}
string Student::getname(){ return name;}
int Student::getgrade(){ return grade;}
void Student::setfam(string fam1){ fam = fam1;}
void Student::setname(string name1){name = name1;}
void Student::setgrade(int grade1){grade = grade1;}
// stud_sport.h
#ifndef STUD_SPORT_H
#define STUD_SPORT_H
#include "student.h"
class Stud_Sport: public Student
{ string vid_sporta;
public:
string getvid_sporta();
void setvid_sporta(string vid_sporta1);
Stud_Sport();
Stud_Sport(string fam1, string name1, int grade1, string vid_sporta1);
~ Stud_Sport() {}
void display();
};
#endif // STUD_SPORT_H
// stud_sport.cpp
#include "stud_sport.h"
#include <iostream>
using namespace std;
Stud_Sport::Stud_Sport():Student(){vid_sporta = "";}
Stud_Sport::Stud_Sport(string fam1, string name1, int grade1, string vid_sporta1): Student(fam1,name1,grade1)
{ vid_sporta = vid_sporta1;}
string Stud_Sport::getvid_sporta() {return vid_sporta;}
void Stud_Sport::setvid_sporta(string vid_sporta1){vid_sporta = vid_sporta1;}
void Stud_Sport::display()
{
cout << " \n: " << fam;
cout << " : " << name;
cout << " : " << grade;
cout << " : " << vid_sporta;
}
// group_stud.h
#ifndef GROUP_STUD_H
#define GROUP_STUD_H
#include "stud_sport.h"
#include <list>
#include <string>
using namespace std;
class Group_stud
{ string name_gr;
list <Stud_Sport*> st;
public:
Group_stud();
string getname();
void setname(const string name_gr1);
void add_st(Stud_Sport *st1);
void stud_max_grade();
void diskOut();
void showData();
void del_obj();
};
#endif // GROUP_STUD_H
// group_stud.cpp
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#include "group_stud.h"
#include <iostream>
#include <fstream>
using namespace std;
bool compare_fam(Stud_Sport* st1, Stud_Sport* st2)
{
return st1->getfam() < st2->getfam();
}
Group_stud::Group_stud(){ name_gr = "";}
string Group_stud::getname(){ return name_gr;}
void Group_stud::setname(const string name_gr1){name_gr = name_gr1;}
void Group_stud::add_st(Stud_Sport* st1)
{
st.push_back(st1);
}
void Group_stud::stud_max_grade()
{ list <Stud_Sport*>::iterator itr;
itr = st.begin();
int max = (*itr)->getgrade();
for(itr = st.begin(); itr!= st.end(); ++itr)
if ((*itr)->getgrade() > max) max = (*itr)->getgrade();
cout << "\n " << name_gr;
cout << "\n : \n";
for(itr = st.begin(); itr!= st.end(); ++itr)
if ((*itr)->getgrade() == max)
(*itr)->display();
}
void Group_stud::diskOut()
{ ofstream fout("C:\\1.txt");
fout << st.size() << endl;
//for (int i = 0; i < n; i++)
list <Stud_Sport*>::iterator itr;
for(itr = st.begin(); itr!= st.end(); ++itr)
{ fout << (*itr)->getfam() << endl;
fout << (*itr)->getname() << endl;
fout << (*itr)->getgrade() << endl;
fout << (*itr)->getvid_sporta() << endl;
}
fout.close();
}
void Group_stud::showData()
{ st.sort(compare_fam);
list <Stud_Sport*>::iterator itr;
cout << "\n " << name_gr;
cout << "\n -: \n";
for(itr = st.begin(); itr!= st.end(); ++itr)
(*itr)->display();
}
void Group_stud::del_obj()
{ int fl = 0;
string fam;
cout << "\nInput fam for del: "; cin >> fam;
list <Stud_Sport*>::iterator itr;
for(itr = st.begin(); itr!= st.end();++itr)
if ((*itr)->getfam() == fam)
{st.erase(itr);fl = 1; break;}
if (fl == 0) cout << "\n ! \n";
}
// main.cpp
#include "student.h"
#include "stud_sport.h"
#include "group_stud.h"
#include <iostream>
#include <fstream>
#include <list>
using namespace std;
void vvod2(string &fam2,string &name2, int &grade2, string &vid_sporta2)
{ cout << ": "; cin >> fam2;
cout << ": "; cin >> name2;
cout << ": "; cin >> grade2;
cout << " : "; cin >> vid_sporta2;
}
int main()
{ int pr;
string fam2, name2, vid_sporta2;
int grade2;
int nMenu;
int m;
Group_stud gr;
string name_gr1;
cout << "\n :"; cin >> name_gr1;
gr.setname(name_gr1);
Stud_Sport *st;
list <Stud_Sport*> spisok;
//
cout << "\n: " << endl;
cout << "\n1 - ";
cout << "\n2 - ";
cout << "\n>";
cin >> nMenu;
try { switch (nMenu)
{ case 1: cout << "\n :\n";
do
{ vvod2(fam2, name2, grade2,vid_sporta2);
st = new Stud_Sport(fam2, name2, grade2,vid_sporta2);
spisok.push_back(st);
gr.add_st(st);
cout << "\n ? 1- , 0 - " << endl;
cin >> pr;
}while(pr == 1);
gr.diskOut();
gr.showData();
break;
case 2:
ifstream fin("C:\\1.txt");
fin >> m; fin.get();
for (int i = 0; i < m; i++)
{ getline(fin, fam2);
getline(fin, name2);
fin >> grade2; fin.get();
getline(fin, vid_sporta2);
st = new Stud_Sport(fam2, name2, grade2,vid_sporta2);
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spisok.push_back(st);
gr.add_st(st);
}
gr.showData();
break;
}
gr.stud_max_grade();
gr.del_obj();
gr.showData();
//gr.diskOut();
list <Stud_Sport*>::iterator itr;
for(itr = spisok.begin(); itr!= spisok.end(); ++itr)
delete (*itr);
spisok.clear();
}
catch(const ErrorStud& e)
{ cout << e.message << endl;}
return 0;
}
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