Wait online ~~

ike666

#include <iostream.h>
#include <string.h>
#define MAX 2
class student
{
private:
char name [20];
char reseach [20];
int no;
public:
        student (char n [], char s [], int t)
         {
            strcpy (name, n);
            strcpy (reseach, s);
            no = t;
         }
~ student () {}
void ShowInfo ()
{
cout << "student:" << name;
                cout << "Research direction:" << reseach;
                cout << "Student ID:" << no;
}
};
class teacher
{
private:
int top;
char name [20];
student stu [MAX];
public:
        teacher (char t [])
{
top = 0;
strcpy (name, t);
}
        ~ teacher ()
{
          // delete [] stu;
}
void add (student&s)
{
           stu [top] = s;
top ++;
}
void getname ()
{
cout << "Teacher:" << name << endl;
}
void ShowStudentInfo ()
{
for (int i = 0; i <top; i ++)
{
            stu [i] .ShowInfo ();
}
}
};
void main ()
{
teacher t [] = {teacher ("Tom"), teacher ("Marry")};
student s1 = ("Pirlo", "Java", 100);
student s2 = ("Gattuso", "C ++", 101);
student s3 = ("kaka", "C", 102);
t [0] .add (s1);
t [0] .add (s2);
t [1] .add (s3);
             for (int i = 0; i <2; i ++)
{
t [i] .getname ();
cout << "Guiding students:";
           t [i] .ShowStudentInfo ();
}
}



D:\C ++ job\and 2\zuoye1.cpp (32): error C2512: 'student': no ​​appropriate default constructor available
D:\C ++ homework\and 2\zuoye1.cpp (61): error C2440: 'initializing': cannot convert from 'const int' to 'class student'
        No constructor could take the source type, or constructor overload resolution was ambiguous
D:\C ++ Assignment\and 2\zuoye1.cpp (62): error C2440: 'initializing': cannot convert from 'const int' to 'class student'
        No constructor could take the source type, or constructor overload resolution was ambiguous
D:\C ++ homework\and 2\zuoye1.cpp (63): error C2440: 'initializing': cannot convert from 'const int' to 'class student'
        No constructor could take the source type, or constructor overload resolution was ambiguous
Error executing cl.exe.

zuoye1.obj-4 error (s), 0 warning (s)

chengwei2537

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;
#define MAX 2
class student
{
private:
char name [20];
char reseach [20];
int no;
public:
        student (char n [], char s [], int t)
         {
            strcpy (name, n);
            strcpy (reseach, s);
            no = t;
         }
~ student () {}
student ()
{

}
void ShowInfo ()
{
cout << "Student:" << name;
                cout << "Research direction:" << reseach;
                cout << "Student ID:" << no;
}
};
class teacher
{
private:
int top;
char name [20];
student stu [MAX];
public:
        teacher (char t [])
{
top = 0;
strcpy (name, t);
}
        ~ teacher ()
{
          // delete [] stu;
}
void add (student&s)
{
           stu [top] = s;
top ++;
}
void getname ()
{
cout << "Teacher:" << name << endl;
}
void ShowStudentInfo ()
{
for (int i = 0; i <top; i ++)
{
            stu [i] .ShowInfo ();
}
}
};
void main ()
{
teacher t [] = {teacher ("Tom"), teacher ("Marry")};
student s1 ("Pirlo", "Java", 100);
student s2 ("Gattuso", "C ++", 101);
student s3 ("kaka", "C", 102);
t [0] .add (s1);
t [0] .add (s2);
t [1] .add (s3);
             for (int i = 0; i <2; i ++)
{
t [i] .getname ();
cout << "Guide students:";
           t [i] .ShowStudentInfo ();
}
}

chengwei2537

I have defined the constructor myself. Be careful to add a default constructor. The function I gave is empty. You can change it according to your needs.

orangedj

#include <iostream>
#include <string>
using namespace std;

#define MAX 2
class student
{
private:
char name [20];
char reseach [20];
int no;
public:
student ()
{
strcpy (name, "");
strcpy (reseach, "");
no = 0;
}
        student (char n [], char s [], int t)
         {
            strcpy (name, n);
            strcpy (reseach, s);
            no = t;
         }
~ student () {}
void ShowInfo ()
{
cout << "name:" << name;
                cout << "reseach:" << reseach;
                cout << "no:" << no;
}
};
class teacher
{
private:
int top;
char name [20];
student stu [MAX];
public:
teacher ()
{
top = 0;
strcpy (name, "");
}
        teacher (char t [])
{
top = 0;
strcpy (name, t);
}
        ~ teacher ()
{
          // delete [] stu;
}
void add (student&s)
{
           stu [top] = s;
top ++;
}
void getname ()
{
cout << "teacher:" << name << endl;
}
void ShowStudentInfo ()
{
for (int i = 0; i <top; i ++)
{
            stu [i] .ShowInfo ();
}
}
};
int main ()
{
teacher t [] = {teacher ("Tom"), teacher ("Marry")};
student s1 ("Pirlo", "Java", 100);
student s2 ("Gattuso", "C ++", 101);
student s3 ("kaka", "C", 102);
t [0] .add (s1);
t [0] .add (s2);
t [1] .add (s3);
             for (int i = 0; i <2; i ++)
{
t [i] .getname ();
cout << "student:";
           t [i] .ShowStudentInfo ();
}
The
 return 0;
}

fatman

1. This is wrong.
teacher (char t [])

2. This will construct MAX students. If the construction fails, take a look at the student constructor.
student stu [MAX].

ike666

The first error is that there is no default constructor, I added it, but there are three errors behind it

叱咤天

teacher (char t [])
Please tell me why this is wrong?

lklklk

Put the wrong code places, one by one to help you solve it, so put it all at once, your head is dizzy

ike666

These are the few, the original code is at the top,


student s1 ("Pirlo", "Java", 100);
student s2 ("Gattuso", "C ++", 101);
student s3 ("kaka", "C", 102);
Error message see above

huhuhu_ggg

#include<iostream.h>
#include<string.h>

#define MAX 2

class student
{
public:
student()
{
}
The
student(char n[],char s[],int t)
{
strcpy(name,n);
strcpy(reseach,s);
no=t;
}

~student()
{
}

void ShowInfo()
{
cout << "Student: "<< name << ""
<< "Research direction: "<< reseach << ""
<< "Student ID: "<< no << ""
<< endl;
}


private:
char name[20];
char reseach[20];
int no;
};

class teacher
{
private:
int top;
char name[20];
student stu[MAX];
public:

teacher(char t[])
{
top=0;
strcpy(name,t);
}

~teacher()
{
// delete []stu;
}

void add(student&s)
{
stu[top]=s;
top++;
}

void getname()
{
cout<<"Teacher:"<<name<<endl;
}

void ShowStudentInfo()
{
for(int i=0;i<top;i++)
{
stu[i].ShowInfo();
cout << endl;
}
}
};
void main()
{
teacher t[]={teacher("Tom"),teacher("Marry")};
// student("Pirlo","Java",100);
// student("Gattuso","C++",101)
// student("kaka","C",102)
t[0].add(student("Pirlo","Java",100));
t[1].add(student("Gattuso","C++",101));
t[1].add(student("kaka","C",102));
for(int i=0;i<2;i++)
{
t[i].getname();
cout<< endl;
t[i].ShowStudentInfo();
cout << endl;
}
}
This looks okay, but it's a bit messy, let's check it out again!