How to use vector instead of double array?

Question

I wrote a cpp code, and I used " double stu[ ][ ]"
And I filled that with .csv file with a function using ifstream fileobj(str,ios::in)
Then I displayed it.
But I don't know how to use vector instead and use ifstream again
I would be thankful if someone help.

This is my code :

#include<iostream>
#include<fstream>
#include<iomanip>
using namespace std;

void getdata (char str[100],double stu[243][8]) ;

int main()
{
double stu[243][8];
char str[100]="AP-Data.csv";
getdata(str,stu);
for(int j=0;j<243;j++)
{
for(int i=0;i<8;i++)
{
cout<<stu[j][i];
cout<<"\t";
}
cout<<"\n";
}
return 0;
}
void getdata (char str[100],double stu[243][8])
{
double m;
char ch;
int i,j;
ifstream fileobj(str,ios::in);
for(j=0;j<243;j++)
{
stu[j][0]=1;
for(i=1;i<8;i++)
{
fileobj>>m;
stu[j][i]=m;
fileobj>>ch;
}
}
fileobj.close();
for(j=0;j<243;j++)

Answer 1

For using vector in cpp, firstly you have to include vector library which includes necessary functions like push_back() etc.
You can do this by
#include<vector>

And you can define 2D vector by
Vector<Vector<int>> temp;
You can find other details on following link:
http://www.cplusplus.com/forum/beginner/236646/