Using c arrays I need help with this program write a program

Using c++ (arrays)

I need help with this program:

write a program to keep records and print statistical analysis for a class of students. There are three quizzes for each student during the term. Each student is identified by a four-digit student ID number. The number of students in the class is unknown. However; the last ID number is 0000(According with data given there are 22 students). The file pr2data.txt is included and contains the data. The program calculates the statistics for each student and for each quiz as shown in the sample output. The output goes to a file and is in the same order as the input.

This is the data given:

pr2data.txt

1234   52   70   75
2134   90   76   90
3124   90   95   98
4532   21   17   81
5678   20   22   45
6134   34   45   55
7874   60   99   56
8026   70   10   66
9893   34   09   77
2233   78   20   78
1947   45   40   88
3456   78   55   78
2877   55   50   95
3189   70   98   78
2132   77   97   80
4602   89   50   91
3445   78   60   78
5405   35   33   15
4556   78   20   18
6999   88   98   89
9898   48   78   68
2323   78   20   78
0000

AND this is an example of how should be the output:

Student   Quiz 1   Quiz 2   Quiz 3   Average  
1234 78 83 87 82.67  
2134 67 77 84 76.00
3124 77 89 93 86.33

High score 78 89 93

Low score 67 77 84

Quiz Average 73.4 83.0   88.2

These are my codes:

#include <iostream>
#include <iomanip>
#include <fstream>

using namespace std;

const int size = 20;

typedef int student[size];
typedef int quiz1[size];
typedef int quiz2[size];
typedef int quiz3[size];
typedef float stavg[size];
typedef float qzavg[size];

void getdata(ifstream &,student, quiz1, quiz2, quiz3);
void findstavg (quiz1, quiz2, quiz3, stavg/*, int*/);
/*void findhigh();
void findlow();
void findqzavg();*/
void printall(ofstream &, student, quiz1, quiz2, quiz3, stavg/*, int*/);

int main()   
{   ifstream infile(\"pr2data.txt\");
   ofstream outfile;
   outfile.open(\"pr3output.txt\");
  
   student id;
   quiz1 q1;
   quiz2 q2;
   quiz3 q3;
   stavg savg;
   /*int n=0;*/
  
   if(!infile)
   {
       cout<<\"Unable to open the file.\"<    }
   else
   {
       getdata(infile,id,q1,q2,q3);
       findstavg(q1, q2, q3, savg/*, n*/);
       /*findhigh();
       findlow();
       findqzavg();*/
       printall(outfile, id, q1, q2, q3, savg/*, n*/);
   }

return 0;
}

void findstavg(quiz1 q1, quiz2 q2, quiz3 q3, stavg savg/*, int n*/)
{
for(int i = 0; i < size; i++)
savg[i] = (q1[i] + q2[i] + q3[i]) / 3.0;
}

/*int findlow(int array[], int n)
{
int low = array[0];
for(int i = 1; i < n; i++)
if(array[i] < low)
low = array[i];
return low;
}

int findhigh(int array[], int n)
{
int high = array[0];
for(int i = 1; i < n; i++)
if(array[i] > high)
high = array[i];
return high;
}

double findqzavg(int quiz[], int n)
{
double sum = 0.0;
for(int i = 0; i < n; i++)
sum += quiz[i];
return sum / n;
}
*/
void getdata(ifstream &fin, student id, quiz1 q1, quiz2 q2, quiz3 q3)
{
  
for(int i = 0; i < size; i++)
{
fin>>id[i]>>q1[i]>>q2[i]>>q3[i];

}
}

void printall(ofstream &fout, student id, quiz1 q1, quiz2 q2, quiz3 q3, stavg savg/*, int n*/)
{
for(int i = 0; i < size; i++)
{

fout<<\"student\"<

}
}//< //fout<<\"Low Score : \"< //fout<<\"Quiz Average: \"< //}

AND MY OUTPUT IS:

pr3output.txt

student1234   quiz1 52   quiz2 70   quiz3 75   average 65.67
student2134   quiz1 90   quiz2 76   quiz3 90   average 85.33
student3124   quiz1 90   quiz2 95   quiz3 98   average 94.33
student4532   quiz1 21   quiz2 17   quiz3 81   average 39.67
student5678   quiz1 20   quiz2 22   quiz3 45   average 29.00
student6134   quiz1 34   quiz2 45   quiz3 55   average 44.67
student7874   quiz1 60   quiz2 99   quiz3 56   average 71.67
student8026   quiz1 70   quiz2 10   quiz3 66   average 48.67
student9893   quiz1 34   quiz2 9 quiz3 77   average 40.00
student2233   quiz1 78   quiz2 20   quiz3 78   average 58.67
student1947   quiz1 45   quiz2 40   quiz3 88   average 57.67
student3456   quiz1 78   quiz2 55   quiz3 78   average 70.33
student2877   quiz1 55   quiz2 50   quiz3 95   average 66.67
student3189   quiz1 70   quiz2 98   quiz3 78   average 82.00
student2132   quiz1 77   quiz2 97   quiz3 80   average 84.67
student4602   quiz1 89   quiz2 50   quiz3 91   average 76.67
student3445   quiz1 78   quiz2 60   quiz3 78   average 72.00
student5405   quiz1 35   quiz2 33   quiz3 15   average 27.67
student4556   quiz1 78   quiz2 20   quiz3 18   average 38.67
student6999   quiz1 88   quiz2 98   quiz3 89   average 91.67

However I NEED some help in the folowing funtions to get the highest, lowest and average quiz (please look above how has to to be the output):

function findhigh () returns the highest quiz.

findlow () returns the lowest quiz.

findqzavg () returns the quiz average.

Solution

Class 1

import java.io.*;
import java.util.StringTokenizer;
public class ReadSource
{
//Example references
//ReadSource.java -- shows how to work with readLine and FileReader
//How do you tokenize a String
//How to convert a String to an Integer
  
   //int x = Integer.parseInt(String) ;
//Putting it altogether:
public static void main(String [] args)
   {
/************************
* IF STUDENTS > 40
* PRINT \"TOO MANY RECORDS\"
* AND QUIT PROGRAM
************************/
Student lab6 [] = new Student[40];
//Populate the student array
if (lab6.length > 40)
{
System.out.println(\"Too Many Records\");
}
lab6 = Util.readFile(\"Data.txt\", lab6);
Statistics statlab6 = new Statistics();
statlab6.findlow(lab6);
//add calls to findhigh and find average
//Print the data and statistics
StringTokenizer st = new StringTokenizer(\"this is a test\");
while (st.hasMoreTokens())
{
System.out.println(st.nextToken());
}
}
}
Class 2

import java.io.*;
public class Student
{
private int SID; //Student ID
private Integer scores[] = new Integer[5];
public int getSID() {
return SID;
}
public void setSID(int SID) {
this.SID = SID;
}
public Integer[] getScores() {
return scores;
}
public void setScores(Integer[] scores) {
this.scores = scores;
}
  
//add methods to print values of instance variables.
public String Print()
{
Student [] students = new Student[5];
for (int i = 0; i < students.length; i++)
{
return (\"SID: \" + this.SID + \"Scores\" + this.scores);
}
return (\"SID: \" + this.SID + \"Scores\" + this.scores);
}
}
Class 3

package Lab6;
import java.io.*;
import corejava.*;
public class Util
{
public static Student [] readFile(String filename, Student [] stu)throws Exception
{
/* - Reads the file and builds student array.
   - Open the file using FileReader Object.
   - In a loop read a line using readLine method.
   - Tokenize each line using StringTokenizer Object
   - Each token is converted from String to Integer using parseInt method
   - Value is then saved in the right property of Student Object.
*/
String x;
FileReader fr = new FileReader(\"Data.txt\");
BufferedReader br = new BufferedReader(fr);
while ((x = br.readLine())!= null)
{
System.out.println(x);
}
fr.close();
return stu;
}
Student a1[][] = new Student [40][6]; //array of object references
//if numofrows > 40 exit with an error message else compute statistics
/* if number of rows < 40
* a1[] = new Student (...........);
* where i < 40
*/
public static void read()
{
}
}