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reading multiple files using fstream in object class

iamtobey (7)
I am trying to open multiple text files using fstream in a class float_seq object that i have created but i don't know how to close the file in order to open the next one.Everything else is fine. definitions in class and main code shown below.
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////definition and declaration///////
class float_seq {
public:
    float_seq();
    ~float_seq();
    float_seq(const float_seq&);
    float_seq operator=(const float_seq&);
    float_seq operator+(const float_seq&);
    void close();
    friend std::istream& operator>>(std::istream&, float_seq&);
    friend std::ostream& operator<<(std::ostream&, float_seq&);
    float read_from(int element);
    void write_to(float value,int element);
    void default_zero();
    void print();

    unsigned int no_of_values;
    float *seq;
    bool check;


/////////////////////////
float_seq::float_seq():no_of_values(0){
seq= new float [no_of_values];
}

float_seq::~float_seq(){
delete[] seq;
}

float_seq::float_seq(const float_seq& New_float_seq){
    no_of_values=New_float_seq.no_of_values;
    int i(0);
     for(i=0 ; i < no_of_values; ++i)
     {
         seq[i]=New_float_seq.seq[i];
     }
}
std::istream& operator>>(std::istream& fin, float_seq& float__seq){
    fin>>float__seq.no_of_values;
    for (int i=0; i<float__seq.no_of_values; i++) {
        fin>>float__seq.seq[i];
    }
    return fin;
}

float_seq float_seq::operator=(const float_seq &float__seq){
    delete[] seq;
    seq = new float [float__seq.no_of_values];
    no_of_values=float__seq.no_of_values;
    for (int i=0; i<no_of_values; i++) {
        seq[i]=float__seq.seq[i];
    }
    return *this;
}

float_seq float_seq::operator+(const float_seq &float__seq){
    float_seq sum;
    sum.no_of_values=no_of_values+float__seq.no_of_values;
    for (int i=0; i<no_of_values; i++) {
        sum.seq[i]=seq[i];
    }
    for (int i=0; i<float__seq.no_of_values; i++) {
       sum.seq[no_of_values+i]=float__seq.seq[i];
    }
    return sum;
}

std::ostream& operator<<(std::ostream& float_seqout, float_seq& float__seq){
    float_seqout<<float__seq.no_of_values<<std::endl;
    for (int i=0; i<float__seq.no_of_values; i++) {
        float_seqout<<float__seq.seq[i]<<", ";
    }
    return float_seqout;
}

void float_seq::default_zero(){

    for (int i=0; i<no_of_values; i++) {
        seq[i]=0;
    }
}

  
void float_seq::print(){
    int i;
    cout<< no_of_values <<endl<<endl;
for(i=0;i<no_of_values;i++)
{
   cout<< seq[i]<<endl;
}
}
  

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#include <iostream>
#include "Coursework.h"

using namespace std;
int main()
{

    float_seq signal,signal2, add;


    signal.default_zero();
    fstream fin("filter1.txt");
    fin>> signal;
  /* close file here  */
    fstream fin("filter2.txt");
    fin>> signal2;

    add=signal+signal2;
    add.print();

    return 0;
}
SamuelAdams (1535)
I think this is what you want.

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 /* close file here  */
fin.close();
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