Help On Computer Science Final!!!! Java Program Help!!!!

[BSOS]

I need this program to compile with out any errors or warnings. Any help would be dearly appreciated.

import java.util.*;
import java.io.*;
/**
 * A class that represents a class score book.  This
 * book maps names to scores and grades.  This will
 * read the names, scores and grade information from a file.
 */
public class CourseData2 {
 
  /////////////////// fields ///////////////////
 
  private String fileName;
  private Map phoneMap = new HashMap();
 
  /////////////////// constructors ///////////////////
  /**
   * Constructor that takes a file name and reads
   * in the names and phone numbers from a file.
   * @param file the name of the file to read
   */
  public CourseData2(String file) {
    this.fileName = file;
   
    // Read the map information in form the file
    readInfoFromFile();
  } // constructor
 
  /////////////////// methods ///////////////////
  /**
   * Get the phone number for hte passed nam
   * @param name the name to look up in hte map
   * @return the phone number if found, else null
   */
  public String getPhoneNumber(String name) {
    String phoneNumber = (String) phoneMap.get(name);
    return phoneNumber;
  } // method getPhoneNumber()
 
 
  /**
   * Method to read the phone information from a
   * file and use it to fill hte map
   */
  public void readInfoFromFile() {
    String line = null;
    String[] phoneArray = null;
   
    try {
     
      // create the reader
      BufferedReader reader =
        new BufferedReader(new FileReader(fileName));
     
      // loop reading from the file
      while ((line = reader.readLine()) != null) {
        while ((line = reader.readLine()) != null) {
        if (line.indexOf(":") >= 0) {
          phoneArray = line.split(":");
         
          int f = (String)phoneArray[2];
          if (0 <= f <= 100) {
            String a = null;
        if (0 <= f < 60) { a = "E";}
        else if (60 <= f < 70) { a = "D";}
        else if (70 <= f < 80) { a = "C";}
        else if (80 <= f < 90) { a = "B";}
        else if (90 <= f <= 100) { a = "A";}
          }
          else if ( ((int)f > 100) + ((int)f < 0) ) {
        SimpleOutput.showError("Score is not an integer");
        String g = new String();
        g = phoneArray[2];
          }//if < 0
        }//while 2
         
        phoneMap.put(phoneArray[0].trim(),
                    (phoneArray[1].trim() + phoneArray[2].trim() + a.trim()));
        } // if
        } // while
       
     
        /*if (f < 60) { (String)f = "E";}
        else if (60 <= f < 70) { (String)f = "D";}
        else if (70 <= f < 80) { (String)f = "C";}
        else if (70 <= f < 90) { (String)f = "B";}
        else if (90 <= f) { (String)a = "A";}*/
     
      // Close the reader
      reader.close();
     
    } // try
    catch (FileNotFoundException ex) { 
      SimpleOutput.showError("Could not find the file \"" + fileName + "\".");
    } // catch
    catch (Exception ex) {
      ex.printStackTrace();
    } // catch
  } // method readInfoFromFile()
 
 
  public void printBook() {
   
    // Sort hashtable.
    Vector phoneVector = new Vector(phoneMap.keySet());
    Collections.sort(phoneVector);
   
    // Display (sorted) hashtable.
    for (Enumeration phoneEnumeration = phoneVector.elements(); phoneEnumeration.hasMoreElements();) {
      String key = (String)phoneEnumeration.nextElement();
      System.out.println("Name: " + key + ", Year: " + phoneMap.get(key) + ", Score: " + phoneMap.get(key) + ", Grade: " + phoneMap.get(key));
    } // for
   
  } // method printBook()
 
  /* main method for testing */
  public static void main(String[] args) {
    CourseData2 phoneBook = new CourseData2("scores12.txt");
    System.out.println(phoneBook.getPhoneNumber("Lee"));
    System.out.println(phoneBook.getPhoneNumber("Smith"));
    phoneBook.printBook();
  } // main()
 
} // class

[staykovmarin]

		int f = (String) phoneArray[2];
		if (0 <= f <= 100) {
			String a = null;
			if (0 <= f < 60) {
				a = "E";
				} else if (60 <= f < 70) {
					a = "D";
				} else if (70 <= f < 80) {
					a = "C";
				} else if (80 <= f < 90) {
					a = "B";
				} else if (90 <= f <= 100) {
					a = "A";
				}
			} else if (((int) f > 100) + ((int) f < 0)) {
		SimpleOutput.showError("Score is not an integer");
		String g = new String();
		g = phoneArray[2];

Your problem is here: int f = (String) phoneArray[2];

Try compiling it and seeing the error for yourself. I surely hope none actually takes this post seriously and does your homework for you.