import java.io.*;
import java.util.*;

public class Test{
	public static void main(String argv[]){
		DataBase db = new DataBase();
		db.addStudent(185844,"Bodzio","Ch");
		db.addStudent(188966,"Kacper","P");

		db.addCourse(0,"AiSD",6);
		db.addCourse(1,"KP1",4);
		db.addCourse(2,"WdFTI",3);

		db.addGrade(185844,0,4.0);
		db.addGrade(185844,1,5.5);
		db.addGrade(185844,2,4.0);

		db.addGrade(188966,0,3.0);
		db.addGrade(188966,1,5.0);
		db.addGrade(188966,2,3.0);

		String filename = "./test.dat";

		try {
			ObjectOutputStream out = new ObjectOutputStream(
				new BufferedOutputStream(
					new FileOutputStream(filename)));
			out.writeObject(db);
			out.close();
		} catch (FileNotFoundException fnfe) {
			System.err.println("OUT: whoOps!");
		} catch (IOException ioe){
			System.err.println("OUT: whoOps1!");
		}

		DataBase db2 = new DataBase();

		try {
			ObjectInputStream in = new ObjectInputStream(
				new BufferedInputStream(
					new FileInputStream(filename)));
			db2 = (DataBase)in.readObject();
			in.close();
		} catch (ClassNotFoundException cnfe){
			System.err.println("IN: whoOps!");
		} catch (FileNotFoundException fnfe) {
			System.err.println("IN: whoOps1!");
		} catch (IOException ioe){
			System.err.println("IN: whoOps2!");
		}

		System.out.println(db2.studentInfo(185844) + "\n" + db.makeStudentChart(185844).toString());
		System.out.println(db2.studentInfo(188966) + "\n" + db.makeStudentChart(188966).toString());
		System.out.println(db2.studentInfo(185847));
	}
}