please edit my java code perferably on jgrasp version 50.0 , wont complie correctly :( the...
please edit my java code perferably on jgrasp version 50.0 , wont complie correctly :(
the program is supposed to read from my input file and do the following
1) print out the original data in the file without doing anything to it.
2) an ordered list of all students names (last names) alphabetically and the average GPA of all student togther .
3) freshman list in alphabeticalorder by last name with the average GPA of the freshmen togther .
4) sophomore list in alphabetical order by last name with the average GPA of the sophomores togther .
5)The junior list in alphabetical order by last name with the average GPA of the juniors.
6)The senior list in alphabetical order by last name with the average GPA of the seniors.
_______________________________________________
my input file is below
_________________
Williams,Leonard Freshman 1.85
Smith,Sheila Senior 2.99
Anderson,Andy Sophomore 3.01
Wiser,Bud Freshman 4.00
Robertson,Jully Junior 2.78
Koran,korn Junior 3.50
smith,sam Junior 2.14
Johnson,Jim Junior 3.05
Johnson,Jane Junior 3.75
Potter,Pam Senior 2.98
Brown,Bill Sophomore 2.55
Crooks,Cathy Freshman 1.99
Gregg,Howard Senior 2.44
Nicholas,Judy Senior 3.69
White,Bob Sophomore 1.64
Walsh,Fred Junior 4.00
Dennis,Susan Senior 2.06
Roberts,Rachel Sophomore 4.00
Fredericks,Mary freshman 2.89
Holmes,Wendy Senior 2.56
Edwards,James Sophomore 3.00,Barbara Sophomore 3.67
Brown,David Freshman 2.00
Williamson,Walt Sophomore 2.95
Carson,Jim Sophomore 2.03
_______________
and my code is below
___________________
//GPACalculation.java FILE
import java.util.*;
import java.io.*;
public class GPACalculation
{
public static void main(String args[])
{
File file;
GPAInformation gpas[] = new GPAInformation[80];
ArrayList<GPAInformation> fresherMan = new
ArrayList<GPAInformation>();
ArrayList<GPAInformation> senior = new
ArrayList<GPAInformation>();
ArrayList<GPAInformation> junior = new
ArrayList<GPAInformation>();
ArrayList<GPAInformation> sophomore = new
ArrayList<GPAInformation>();
String array[] = new String[3];
String line;
Scanner in;
double average=0;
int count = 0;
System.out.println("Information in the text file is: ");
try
{
file = new File("program1.txt");
in = new Scanner(file);
while (in.hasNextLine())
{
line = in.nextLine();
array = line.split("\t");
System.out.println(line);
GPAInformation newGPA = new GPAInformation();
newGPA.setName(array[0].trim());
newGPA.setGradeLevel(array[1].trim());
newGPA.setGpaValue(Double.parseDouble(array[2].trim()));
gpas[count] = newGPA;
count++;
}
in.close();
}
catch (Exception e)
{
e.printStackTrace();
}
System.out.println();
System.out.println("The ordered list is: ");
gpas = selectionSort(gpas, count);
print(gpas, count);
average = gpaAverage(gpas, count);
System.out.println("The average value of GPA of overall students
is: "+average);
System.out.println();
System.out.println("The ordered list of freshman: ");
fresherMan = getGPAInformation(gpas, count, "Freshman");
printList(fresherMan);
average = gpaAverage(fresherMan);
System.out.println("The average value of GPA of overall freshman
is: "+average);
System.out.println();
System.out.println("The ordered list of sophomores : ");
sophomore = getGPAInformation(gpas, count, "Sophomore");
printList(sophomore);
average = gpaAverage(sophomore);
System.out.println("The average value of GPA of overall sophomore
is: "+average);
System.out.println();
System.out.println("The ordered list of junior man: ");
junior = getGPAInformation(gpas, count, "Junior");
printList(junior);
average = gpaAverage(junior);
System.out.println("The average value of GPA of overall junior is:
"+average);
System.out.println();
System.out.println("The ordered list of seniour man: ");
senior = getGPAInformation(gpas, count, "senior");
printList(senior);
average = gpaAverage(senior);
System.out.println("The average value of GPA of overall senior is:
"+average);
System.out.println();
}
public static ArrayList<GPAInformation>
getGPAInformation(GPAInformation[] gpas, int count, String
level)
{
ArrayList<GPAInformation> newList = new
ArrayList<GPAInformation>();
for (int i = 0; i < count; ++i)
{
if (gpas[i].getGradeLevel().equalsIgnoreCase(level))
{
newList.add(gpas[i]);
}
}
return newList;
}
// Selection sort code
public static GPAInformation[] selectionSort(GPAInformation[]
studs,int counts)
{
for (int i = 0; i < counts; ++i)
{
int minIndex = i;
for (int j = i + 1; j < counts; ++j)
{
if (studs[j].name.equalsIgnoreCase(studs[minIndex].name))
;
minIndex = j;
}
swap(studs, minIndex, i);
}
return studs;
}
private static void swap(GPAInformation[] studs, int i, int
j)
{
GPAInformation temp = studs[i];
studs[i] = studs[j];
studs[j] = temp;
}
public static double gpaAverage(GPAInformation[] studs, int
counts)
{
double avg = 0;
double total = 0;
for (int i = 0; i < counts; ++i)
{
total += studs[i].getGpaValue();
}
avg = total / counts;
return avg;
}
public static double gpaAverage(ArrayList<GPAInformation>
list)
{
double avg = 0;
double total = 0;
for (int i = 0; i < list.size(); ++i)
{
total += list.get(i).getGpaValue();
}
avg = total / list.size();
return avg;
}
public static void print(GPAInformation[] studs, int counts)
{
for(int i=0;i<counts;i++)
System.out.println(studs[i]);
}
public static void printList(ArrayList<GPAInformation>
list)
{
for(int i=0;i<list.size();i++)
System.out.println(list.get(i));
}
}
________________ CONSTRUCTOR FILE_______
//GPAInformation.java
public class GPAInformation
{
String name, GradeLevel;
double gpaValue;
public GPAInformation()
{
name = "";
GradeLevel = "";
gpaValue = 0;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getGradeLevel()
{
return GradeLevel;
}
public void setGradeLevel(String gradeLevel)
{
GradeLevel = gradeLevel;
}
public double getGpaValue()
{
return gpaValue;
}
public void setGpaValue(double gpaValue)
{
this.gpaValue = gpaValue;
}
public String toString()
{
return getName() + "\t\t" + getGradeLevel() + "\t\t" +
getGpaValue();
}
}
Homework Answers
// GPAInformation.java
public class GPAInformation
{
String name, GradeLevel;
double gpaValue;
public GPAInformation()
{
name = "";
GradeLevel = "";
gpaValue = 0;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getGradeLevel()
{
return GradeLevel;
}
public void setGradeLevel(String gradeLevel)
{
GradeLevel = gradeLevel;
}
public double getGpaValue()
{
return gpaValue;
}
public void setGpaValue(double gpaValue)
{
this.gpaValue = gpaValue;
}
public String toString()
{
return getName() + "\t\t" + getGradeLevel() + "\t\t" + getGpaValue();
}
}
// GPACalculation.java
import java.util.*;
import java.io.*;
public class GPACalculation
{
public static void main(String args[])
{
File file;
GPAInformation gpas[] = new GPAInformation[80];
ArrayList<GPAInformation> fresherMan = new ArrayList<GPAInformation>();
ArrayList<GPAInformation> senior = new ArrayList<GPAInformation>();
ArrayList<GPAInformation> junior = new ArrayList<GPAInformation>();
ArrayList<GPAInformation> sophomore = new ArrayList<GPAInformation>();
String array[] = new String[3];
String line;
Scanner in;
double average=0;
int count = 0;
System.out.println("Information in the text file is: ");
try
{
file = new File("program1.txt");
in = new Scanner(file);
while (in.hasNextLine())
{
line = in.nextLine();
array = line.split(" "); // The problem was that you were trying to split the line by a tab, whereas the input file doesn't have a tab anywhere
System.out.println(line);
GPAInformation newGPA = new GPAInformation();
newGPA.setName(array[0].trim());
newGPA.setGradeLevel(array[1].trim());
newGPA.setGpaValue(Double.parseDouble(array[2].trim()));
gpas[count] = newGPA;
count++;
}
in.close();
}
catch (Exception e)
{
e.printStackTrace();
}
System.out.println();
System.out.println("The ordered list is: ");
gpas = selectionSort(gpas, count);
print(gpas, count);
average = gpaAverage(gpas, count);
System.out.println("The average value of GPA of overall students is: "+average);
System.out.println();
System.out.println("The ordered list of freshman: ");
fresherMan = getGPAInformation(gpas, count, "Freshman");
printList(fresherMan);
average = gpaAverage(fresherMan);
System.out.println("The average value of GPA of overall freshman is: "+average);
System.out.println();
System.out.println("The ordered list of sophomores : ");
sophomore = getGPAInformation(gpas, count, "Sophomore");
printList(sophomore);
average = gpaAverage(sophomore);
System.out.println("The average value of GPA of overall sophomore is: "+average);
System.out.println();
System.out.println("The ordered list of junior man: ");
junior = getGPAInformation(gpas, count, "Junior");
printList(junior);
average = gpaAverage(junior);
System.out.println("The average value of GPA of overall junior is: "+average);
System.out.println();
System.out.println("The ordered list of seniour man: ");
senior = getGPAInformation(gpas, count, "senior");
printList(senior);
average = gpaAverage(senior);
System.out.println("The average value of GPA of overall senior is: "+average);
System.out.println();
}
public static ArrayList<GPAInformation> getGPAInformation(GPAInformation[] gpas, int count, String level)
{
ArrayList<GPAInformation> newList = new ArrayList<GPAInformation>();
for (int i = 0; i < count; ++i)
{
if (gpas[i].getGradeLevel().equalsIgnoreCase(level))
{
newList.add(gpas[i]);
}
}
return newList;
}
// Selection sort code
public static GPAInformation[] selectionSort(GPAInformation[] studs,int counts)
{
for (int i = 0; i < counts; ++i)
{
int minIndex = i;
for (int j = i + 1; j < counts; ++j)
{
if (studs[j].name.equalsIgnoreCase(studs[minIndex].name))
;
minIndex = j;
}
swap(studs, minIndex, i);
}
return studs;
}
private static void swap(GPAInformation[] studs, int i, int j)
{
GPAInformation temp = studs[i];
studs[i] = studs[j];
studs[j] = temp;
}
public static double gpaAverage(GPAInformation[] studs, int counts)
{
double avg = 0;
double total = 0;
for (int i = 0; i < counts; ++i)
{
total += studs[i].getGpaValue();
}
avg = total / counts;
return avg;
}
public static double gpaAverage(ArrayList<GPAInformation> list)
{
double avg = 0;
double total = 0;
for (int i = 0; i < list.size(); ++i)
{
total += list.get(i).getGpaValue();
}
avg = total / list.size();
return avg;
}
public static void print(GPAInformation[] studs, int counts)
{
for(int i=0;i<counts;i++)
System.out.println(studs[i]);
}
public static void printList(ArrayList<GPAInformation> list)
{
for(int i=0;i<list.size();i++)
System.out.println(list.get(i));
}
}
![<terminated> GPACalculation [Java Application] /usr/lib/jvm/java-7 Information in the text file is: Williams, Leonard Freshma](http://img.homeworklib.com/questions/aa68c350-5f65-11eb-8e24-8344c6076fb7.png?x-oss-process=image/resize,w_560)
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please edit my java code perferably on jgrasp version 50.0 ,
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