his homework isincluded in your final gradeand is scored out of8 points. Instructions:Complete 12.30...

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his homework isincluded in your final gradeand is scored out of8 points.	Instructions:Complete 12.30 and the following problemStudents.javaThe file students.txt has the following format on each line	fname(string) lname(string) credits(int) GPA(float) with a single space between each field.For exampleMitchell Beck 11 2.88Thelma Colon 43 2.25Erma Mullins 68 1.98Pedro Mack 17 1.95A freshman has 0-29 credits, a sophamore has 30-59, a junior has 60-89 and a senior has 90+ credits. Write a program to open the file and read all the contents. Report back to the user the number of freshmen, sophomores, juniors and seniors. Output the first and last names of the person with the highest GPA for each of those categories.	Grading criteria12.30 Letter Occurences0.5 Prompt and read file name1.0 Read file and process character data0.5 Report A-Z frequencies1.0 Form1.0 DocumentationStudents.java1.0 Read data from file0.5 Count and report number for each year0.5 Report highest GPA for each year1.0 Form1.0 Documentation	Files:			students.txt(.txt, 2K)Sample data fileBelow is the data file Mitchell Beck 11 2.88Thelma Colon 43 2.25Erma Mullins 68 1.98Pedro Mack 17 1.95Stella Diaz 122 2.15Mona Conner 103 1.38Gilbert Kim 16 1.36Renee Miles 11 1.29Cesar Warner 122 0.99Krystal Pittman 33 0.74Lonnie Evans 65 2.67Lorene Murray 97 1.78Gabriel Burgess 24 3.59Timothy Pratt 45 3.84Joseph Cummings 21 1.29Lori Barrett 114 1.80Salvador Simmons 103 3.85Isabel Russell 126 1.06Lawrence Swanson 9 0.67Tracy Jennings 68 0.73Lowell Wagner 65 0.73Jackie Stanley 16 2.80Joann Summers 20 2.66Sally Bell 120 3.64Robyn Ruiz 80 3.92Misty Blake 128 0.44Austin Morrison 45 3.95Phillip Aguilar 18 0.08Ana Burke 84 2.57Rosa Ballard 23 3.60Rachael Owens 98 0.18Elmer Watson 111 2.56Erica Horton 39 3.52Rose Fernandez 89 1.64Gregg Hubbard 115 3.79Mathew Reyes 39 3.51Winston Underwood 15 1.98Scott Austin 123 1.76Nettie Bryant 60 3.57Brent Bass 46 0.68Elias Hogan 5 0.13Alyssa Collins 94 3.50Kristen Ellis 17 2.29Gerardo Williams 77 3.25Van Reynolds 103 3.93Tommie Doyle 49 3.73Stacy Soto 42 1.31Nancy Parker 122 1.69Colleen Grant 80 1.44Melvin Simpson 15 2.06Janet Bowers 77 1.80Frederick Lucas 53 0.06Kristopher Garcia 94 0.93Kayla Sherman 60 0.80Matthew Mclaughlin 25 1.34Kerry Howell 128 0.52Monica Franklin 45 3.96Hazel Dawson 59 3.12Eleanor French 10 3.61Diana Carlson 129 3.55John Silva 92 1.69Cody Taylor 121 0.58Paula Wheeler 47 0.40Eunice Higgins 17 1.04Evan Reed 72 2.94Robin Fuller 42 3.93Yvette Norton 0 2.53Lee Rice 83 2.58Casey Blair 83 2.11Alberto Willis 107 0.87Dixie Hicks 112 1.14Alfred Dennis 35 1.58Debra Chavez 40 2.82Joy Robertson 129 3.68Kerry Bridges 83 3.92Spencer Baldwin 14 2.54Dana Curry 81 0.97Josephine Wood 4 3.37Whitney Andrews 88 1.19Rudolph Hoffman 31 3.03Edith Massey 118 0.07Jamie Hawkins 93 0.55Ernestine Daniel 101 0.02Bill Cross 100 0.68Norma Hayes 35 2.82Jermaine Thornton 26 2.74Sherry Wilkins 32 2.36Floyd Gill 109 1.79Jacob Medina 55 0.47Sue Kelly 36 0.09Cecilia Mckenzie 11 1.24Boyd Benson 127 2.17Anna Lambert 46 1.07Alton Holt 42 0.49Ricardo Kelley 96 2.18Daisy Guerrero 108 0.67Melissa Gray 88 0.96Alex Wilkerson 68 2.82Karl Moran 125 2.65Curtis Hampton 127 3.24Exercise 12.30

Aditya · Accepted Answer

Final/CountLetter
package countletter;
import java.io.*;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;
import java.*;
public class CountLetter{
   public static void main(String agrs[]) throws IOException
{   
    char[] alphabets = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
    int[] counts ={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
    int ch = 0;
    File file = new File("d:\output.txt");
    FileReader fr = new FileReader(file);
    BufferedReader br = new BufferedReader(fr);
    while ((ch = br.read()) != -1)
    {
       char character = Character.toUpperCase((char)ch);
       for(int i = 0;i Records = new ArrayList();
        String currentLine = reader.readLine();
        while (currentLine != null) {
            String[] Detail = currentLine.split(" ");
            String fname = Detail[0];
            String lname = Detail[1];
            int credits = Integer.valueOf(Detail[2]);
            float gpa = Float.valueOf(Detail[3]);
            Records.add(new Student(fname, lname, credits, gpa));
            currentLine = reader.readLine();
        }
        for (int i = 0; i  Records.get(j + 1).gpa) {
                    Student temp = new Student();
                    temp = Records.get(j);
                    Records.set(j, Records.get(j + 1));
                    Records.set((j + 1), temp);
                }
            }
        }
        BufferedWriter writer = new BufferedWriter(new FileWriter("D:\output.txt"));
        for (Student student : Records) {
            writer.write(student.fname);
            writer.write(" " + student.lname);
            writer.write(" " + student.credits);
            writer.write(" " + student.gpa);
            writer.newLine();
        }
        reader.close();
        writer.close();
        //TO FIND NUMBER OF FRESHMAN,SOPHAMORE,JUNIOR,SENIOR
        BufferedReader readers = new BufferedReader(new FileReader("D:\output.txt"));
        String Line = readers.readLine();
        int i = 0, j = 0, k = 0, l = 0;
        String freshmanfname="";

his homework is included in your final grade and is scored out of 8 points . Instructions: Complete 12.30 and the following problem Students.java The file students.txt has the following format on...

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