import java.io.*;

public class Student implements Serializable{
	private String name;
	private int ssNum;
	private int coursesCompleted;
	private char[] grades;

	public Student(String n, int num, int c){
		n = name;
		num = ssNum;
		c = coursesCompleted;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getSsNum() {
		return ssNum;
	}

	public void setSsNum(int ssNum) {
		this.ssNum = ssNum;
	}

	public int getCoursesCompleted() {
		return coursesCompleted;
	}

	public void setCoursesCompleted(int coursesCompleted) {
		this.coursesCompleted = coursesCompleted;
	}

	public char[] getGrades() {
		return grades;
	}

	public void setGrades(char[] grades) {
		this.grades = grades;
	}
	public double gpa(char[] grades){

		double gpa = 0;

		for (int i = 0; i < grades.length; i++){
			if (grades[i] == 'A'){
				gpa += 4.0;
			}
			else if (grades[i] == 'B'){
				gpa += 3.0;
			}
			else if (grades[i] == 'C'){
				gpa += 2.0;
			}
			else if (grades[i] == 'D'){
				gpa += 1.0;
			}
			else if (grades[i] == 'F'){
				gpa += 0.0;
			}
		}

		return gpa / grades.length;

	}

	public void ReadObject(ObjectInputStream in) throws IOException{
		String readTitle = "";

		for(int i = 0; i < name.length(); i++){
			readTitle += in.readChar();
		}
		ssNum = in.readInt();
		coursesCompleted = in.readInt();

		for (int i = 0; i < grades.length; i++){
			grades[i] = in.readChar();
		}
	}
	public void WriteObjectOverride(ObjectOutputStream out) throws IOException, ClassNotFoundException{

		out.writeChars(name);
		out.writeInt(ssNum);
		out.writeInt(coursesCompleted);

		for (int i = 0; i < grades.length; i++){
			out.writeChar(grades[i]);
		}
		gpa(grades);
	}
	public String toString(){
		   String student = name + " " +  "\nGPA: " + gpa(grades);
		   return student;
		}
}