I am not sure how i can pass the whole array through the methods calculateAverage, calculateHighScore and calculateLowScore. I tried doing a 2-d array but it was unsuccessful.
Exception in thread "main" java.lang.Error: Unresolved compilation problems:
Cannot make a static reference to the non-static field highestGrade1
Cannot make a static reference to the non-static field highestGrade2
Cannot make a static reference to the non-static field highestGrade3
Cannot make a static reference to the non-static field highestGrade4
Cannot make a static reference to the non-static field highestGrade5
Syntax error on token ")", delete this token
Cannot make a static reference to the non-static field lowestGrade1
Cannot make a static reference to the non-static field lowestGrade2
Cannot make a static reference to the non-static field lowestGrade3
Cannot make a static reference to the non-static field lowestGrade4
Cannot make a static reference to the non-static field lowestGrade5
Cannot make a static reference to the non-static field a1
Cannot make a static reference to the non-static field a2
Cannot make a static reference to the non-static field a3
Cannot make a static reference to the non-static field a4
Cannot make a static reference to the non-static field a5
at GradeBook.main(GradeBook.java:132)import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class GradeBook {
int lowestGrade1=0;
int lowestGrade2=0;
int lowestGrade3=0;
int lowestGrade4=0;
int lowestGrade5=0;
int highestGrade1=0;
int highestGrade2=0;
int highestGrade3=0;
int highestGrade4=0;
int highestGrade5=0;
int a1=0;
int a2=0;
int a3=0;
int a4=0;
int a5=0;
public GradeBook(ArrayList<Integer> sid,ArrayList<Integer> q1,ArrayList<Integer> q2,ArrayList<Integer> q3,ArrayList<Integer> q4,ArrayList<Integer> q5){
}
public void calculateAverage(ArrayList<Integer> q1,ArrayList<Integer> q2,ArrayList<Integer> q3,ArrayList<Integer> q4,ArrayList<Integer> q5){
int t1=0;
int t2=0;
int t3=0;
int t4=0;
int t5=0;
for(int a=0; a<q1.size();a++){
t1 += q1.get(a);
a1=t1/q1.size();
t2 += q2.get(a);
a2=t2/q2.size();
t3 += q3.get(a);
a3=t3/q3.size();
t4 += q4.get(a);
a4=t4/q4.size();
t5 += q5.get(a);
a5=t5/q5.size();
}
}
public void calculatehighScore(ArrayList<Integer> q1,ArrayList<Integer> q2,ArrayList<Integer> q3,ArrayList<Integer> q4,ArrayList<Integer> q5){
int h1= q1.get(0);
int h2= q2.get(0);
int h3= q3.get(0);
int h4= q4.get(0);
int h5= q5.get(0);
for(int c=1;c<q1.size();c++){
if (q1.get(c)>h1){
h1= q1.get(c);
}
if (q2.get(c)>h2){
h2= q2.get(c);
}
if (q3.get(c)>h3){
h3= q3.get(c);
}
if (q4.get(c)>h4){
h4= q4.get(c);
}
if (q5.get(c)>h5){
h5= q5.get(c);
}
highestGrade1=h1;
highestGrade2=h2;
highestGrade3=h3;
highestGrade4=h4;
highestGrade5=h5;
}
}
public void lowScore(ArrayList<Integer> q1,ArrayList<Integer> q2,ArrayList<Integer> q3,ArrayList<Integer> q4,ArrayList<Integer> q5){
int l1= q1.get(0);
int l2= q2.get(0);
int l3= q3.get(0);
int l4= q4.get(0);
int l5= q5.get(0);
for(int c=1;c<q1.size();c++){
if (q1.get(c)<l1){
l1= q1.get(c);
}
if (q2.get(c)<l2){
l2= q2.get(c);
}
if (q3.get(c)<l3){
l3= q3.get(c);
}
if (q4.get(c)<l4){
l4= q4.get(c);
}
if (q5.get(c)<l5){
l5= q5.get(c);
}
lowestGrade1=l1;
lowestGrade2=l2;
lowestGrade3=l3;
lowestGrade4=l4;
lowestGrade5=l5;
}
}
public static void main(String[] args) throws FileNotFoundException
{
Scanner inFile= new Scanner(new FileReader("c:/GradeBook.txt"));
inFile.findInLine("Stud Qu1 Qu2 Qu3 Qu4 Qu5 ");
ArrayList<Integer> sid= new ArrayList<Integer>();
ArrayList<Integer> q1= new ArrayList<Integer>();
ArrayList<Integer> q2= new ArrayList<Integer>();
ArrayList<Integer> q3= new ArrayList<Integer>();
ArrayList<Integer> q4= new ArrayList<Integer>();
ArrayList<Integer> q5= new ArrayList<Integer>();
int i=0;
while (inFile.hasNextLine() && i<15)
{
sid.add(i,inFile.nextInt());
q1.add(i,inFile.nextInt());
q2.add(i,inFile.nextInt());
q3.add(i,inFile.nextInt());
q4.add(i,inFile.nextInt());
q5.add(i,inFile.nextInt());
i++;
}
inFile.close();
PrintWriter outFile= new PrintWriter("c:/GradeBook.out");
outFile.println("Stud Q1 Q2 Q3 Q4 Q5");
System.out.println(sid.get(3));
for(int b=0; b<sid.size();b++){
outFile.printf("%2s %3s %3s %3s %3s %3s %n",sid.get(b),q1.get(b),q2.get(b),q3.get(b),q4.get(b),q5.get(b));
}
// outFile.printf("High Score %s %s %s %s %s\n",highestGrade1,highestGrade2,highestGrade3,highestGrade4,highestGrade5));
// outFile.printf("Low Score: %s %s %s %s %s\n",lowestGrade1,lowestGrade2,lowestGrade3,lowestGrade4,lowestGrade5);
// outFile.printf("Average score:%s %s %s %s %s ",a1,a2,a3,a4,a5);
outFile.close();
}
}