Programming project: does this code look clean enough to turn in?

Question

Hi, i was just wanting to know people's opinion on the format of my classes below, i haven't done much java programming and I just want to make sure that this program is easily understood. I will not be able to respond, because I have to wake up in 3 hours for school. So thanks in advance, I will be reading this tomorrow, to see your suggestions, thank you.
here is the scholar class, it is the class that i made to create a scholar(student object) that will be applying for a scholarship and the grades are entered in the ScholarTester class.
I could've done things differently and easier but the professor strictly called for it to be exactly as he stated. I came up with a better, less tedious way, but i couldn't use it. My way was to create a method to randomly generate grades and values to determine the major, but my prof. saw it and made me implement everything in ScholarTester. Also neither of the students will receive the scholarship, that will be determined in project 2 my professor said.
package project1;
import java.util.*;
* @author Kevin
public class Scholar implements Comparable {
    // private variables
    private String fullName;
    private double gradePointAverage;
    private int essayScore;
    private int creditHours;
    private boolean scienceMajor;
    private double totalScore;
       // constructor for a Scholar object
        public Scholar(String myFullName, double myGradePointAverage, int myEssayScore,
                       int myCreditHours, boolean isScienceMajor){
                this.fullName = myFullName;
                this.gradePointAverage = myGradePointAverage;
                this.essayScore = myEssayScore;
                this.creditHours = myCreditHours;
                this.scienceMajor = isScienceMajor;
        // returns a Scholar object's fullname
        public String getFullName(){
            return fullName;
        // returns a Scholar object's gpa
        public double getGradePointAverage(){
            return gradePointAverage;
        // returns a Scholar object's essay score
        public int getEssayScore(){
            return essayScore;
        /// returns a Scholar object's credit hours
        public int getCreditHours(){
            return creditHours;
        // retruns if a Scholar object is a science major or not
        public boolean getScienceMajor(){
            return scienceMajor;
        // sets a Scholar object's full name
        public String setFullName(String lastName, String firstName){
           fullName = lastName + ", " + firstName;
           return fullName;
        // sets a Scholar object's gpa
        public double setGradePointAverage(double a){
            gradePointAverage = a;
            return gradePointAverage;
        // sets a Scholar object's gpa
        public int setEssayScore(int a){
            essayScore = a;
            return essayScore;
        // sets a Scholar object's credit hours
        public int setCreditHours(int a){
            creditHours = a;
            return creditHours;
        // sets a Scholar's major to a science major or not a science major
        public boolean setScienceMajor(boolean a){
            scienceMajor = a;
            return scienceMajor;
        // calculates a Scholar object's score
        public double getScore(){
            totalScore = (gradePointAverage*5) + essayScore;
            if (scienceMajor == true)
                totalScore += .5;
            if (creditHours >= 60 && creditHours <90)
                totalScore += .5;
            else if (creditHours >= 90)
                totalScore += .75;
            return totalScore;
        // compares two scholar objects.
        public int compareTo(Object obj){
            Scholar otherObj = (Scholar)obj;
            double result = getScore() - otherObj.getScore();
            if (result > 0)
                return 1;
            else if (result < 0)
                return -1;
            return 0;
        // returns the highest scoring of two Scholar objects
        public static Scholar max(Scholar s1, Scholar s2){
            if (s1.getScore() > s2.getScore())
                System.out.println(s1.getFullName() + " scored higher than " +
                                   s2.getFullName() + ".\n");
            else
               System.out.println(s2.getFullName() + " scored higher than " +
                                   s1.getFullName() + ".\n");
            return null;
        // returns the highest of 3 student objects
        public static Scholar max(Scholar s1, Scholar s2, Scholar s3){
            if (s1.getScore() > s2.getScore() && s1.getScore() > s3.getScore())
                System.out.println(s1.getFullName() + " scored the highest" +
                        " out of all three students.");
            else if (s2.getScore() > s1.getScore() && s2.getScore() > s3.getScore())
                System.out.println(s2.getFullName() + " scored the highest" +
                        " out of all three students.");
            else if (s3.getScore() > s2.getScore() && s3.getScore() > s1.getScore())
                System.out.println(s3.getFullName() + " scored the highest" +
                        " out of the three students.");
            return null;
        // toString method for a Scholar object
        public String toString(){
            return  "Student name: " + fullName + " -" + " Grade Point Average: "
                    + gradePointAverage  + ". " + "Essay Score: " + essayScore + "."
                    + " Credit Hours: " + creditHours + ". "  +  " Science major: "
                    + scienceMajor + ".";
}here's the ScholarTester class:
package project1;
import java.util.*;
* This program creates Scholar objects that are applying for a scholarship
* @author Kevin
public class ScholarTester {
public static void main(String [] args){
System.out.println("This program was written by Kevin Brown. \n");
System.out.println("--------Part 1--------\n");
// attributes for a scholar object named abraham
double abrahamGpa;
int abrahamEssayScore;
int abrahamCreditHours;
int scienceMajorValueAbraham;
boolean abrahamIsScienceMajor;
    // random numbers used for each scholar object.
    Random doubleGpa = new Random();
    Random intGpa = new Random();
    Random essayScore = new Random();
    Random creditHours = new Random();
    Random scienceMajor = new Random();
        // randomly creates abraham's statistics
        abrahamGpa = doubleGpa.nextDouble() + intGpa.nextInt(4);
        abrahamEssayScore = essayScore.nextInt(6);
        abrahamCreditHours = creditHours.nextInt(121);
        scienceMajorValueAbraham = scienceMajor.nextInt(2);
            if (scienceMajorValueAbraham == 0)
             abrahamIsScienceMajor = true;
            else
             abrahamIsScienceMajor = false;
Scholar abraham = new Scholar("Lincoln, Abraham", abrahamGpa,
                                  abrahamEssayScore, abrahamCreditHours,
                                  abrahamIsScienceMajor);
System.out.println(abraham);
double georgeGpa;
int georgeEssayScore;
int georgeCreditHours;
int scienceMajorValueGeorge;
boolean georgeIsScienceMajor;
    // randomly creates george's statistics
    georgeGpa = doubleGpa.nextDouble() + intGpa.nextInt(4);
    georgeEssayScore = essayScore.nextInt(6);
    georgeCreditHours = creditHours.nextInt(131);
    scienceMajorValueGeorge = scienceMajor.nextInt(2);
         if (scienceMajorValueGeorge == 0)
             georgeIsScienceMajor = true;
         else
             georgeIsScienceMajor = false;
// new scholar object is created from the existing attributes
Scholar george = new Scholar("Bush, George",  georgeGpa, georgeEssayScore,
                                      georgeCreditHours, georgeIsScienceMajor);
System.out.println(george + "\n");
System.out.println("--------Part 2--------\n");
System.out.println(abraham.getFullName() + " scored " + abraham.getScore() + ".");
System.out.println(george.getFullName() + " scored " + george.getScore() + ".\n");
System.out.println("--------Part 3--------\n");
/* comparing george bush and abraham lincoln's scores and printing them out to
         show that the compareTo method is working*/
         System.out.println(abraham.getFullName() + " scored "
                            + abraham.getScore() + ".");
         System.out.println(george.getFullName() + " scored "
                            + george.getScore() + ".\n");
if(abraham.compareTo(george) == 1)
    System.out.println(abraham.getFullName() + " scored higher than " +
            george.getFullName() + ".\n");
else
    System.out.println(george.getFullName() + " scored higher than " +
            abraham.getFullName() + ".\n");
System.out.println("--------Part 4--------\n");
    // prints out scores to show proof that the Scholar.max method is working right.
    System.out.println(abraham.getFullName() + " scored "
                       + abraham.getScore() + ".");
    System.out.println(george.getFullName() + " scored "
                       + george.getScore() + ".\n");
    Scholar.max(abraham, george); // maximum score between abraham and george.
// variables for a scholar object named thomas.
    double thomasGpa;
    int thomasEssayScore;
    int thomasCreditHours;
    int scienceMajorValueThomas;
    boolean thomasIsScienceMajor;
    // randomly creates thomas' statistics
        thomasGpa = doubleGpa.nextDouble() + intGpa.nextInt(4);
        thomasEssayScore = essayScore.nextInt(6);
        thomasCreditHours = creditHours.nextInt(131);
        scienceMajorValueThomas = scienceMajor.nextInt(2);
             if (scienceMajorValueThomas == 0)
                 thomasIsScienceMajor = true;
             else
             thomasIsScienceMajor = false;
         // new scholar object created from existing attributes
         Scholar thomas = new Scholar("Jefferson, Thomas", thomasGpa, thomasEssayScore,
                                      thomasCreditHours, thomasIsScienceMajor);
         System.out.println("New student added - " + thomas + "\n");
         // returns all 3 students scores to show proof that the Scholar.max method is working right
         System.out.println(thomas.getFullName() + " scored " + thomas.getScore());
         System.out.println(abraham.getFullName() + " scored " + abraham.getScore());
         System.out.println(george.getFullName() + " scored " + george.getScore() + "\n");
         // highest score of all three scholars
         Scholar.max(abraham, george, thomas);
}Thanks for reading this long and boring project.

Answer 1

On comments: don't include a comment that just repeats syntax:
// constructor for a Scholar object
public Scholar(String myFullName, ...Anyone knowing Java syntax doesn't need that comment and gains nothing
from its presence, and anyone not knowing Java syntax shouldn't be reading
a listing.
On parameter names: a isn't very imaginative or prescriptive. (See next code.)
On setters returning the argument:
public int setCreditHours(int creditHours ){
    this.creditHours = creditHours ;
    return creditHours;
}1. Most people keep it simple and use a void return type.
2, The next most common convention is to return this:
public Scholar setCreditHours(int creditHours){
    this.creditHours = creditHours ;
    return this;
}Then you can chain calls, which is occasionally useful:
scholar.setCreditHours(4).setEssayScore(2);3. If you insist on returning the argument, note that this is a one-liner:
public in setCreditHours(int creditHours){
    return this.creditHours = creditHours ;
}