/*
 * Created on Apr 4, 2005
 *
 */
package se1021.fileio.demo;
import java.awt.Color;
import java.io.*;
import java.util.*;
import javax.swing.*;
/**
 * @author hornick
 *
 */
public class FileIOApp {

	List<Student> roster;

	// main entry method
	public static void main(String[] args) {
		new FileIOApp();
	}

	// constructor - inits the app
	public FileIOApp() {

		roster = new ArrayList<Student>();

		roster.add( new Student("Ann", 123, 3.50) );
		roster.add( new Student("Bob", 456, 2.80) );
		roster.add( new Student("Carl", 789, 3.00) );

		String filename = "roster.txt"; // without path spec, JVM assumes the file is in the project directory

		try {
			saveTextRoster( filename );
		} catch( Exception e ) {
			System.out.println( "Error: " + e );
		}

	}
	
	// save the roster to a text file
	private void saveTextRoster(String filename) {
		// attach to a File object (file or directory) 
		File fileObject = new File( filename );
		PrintWriter pw = new PrintWriter(fileObject);
		for(Student s: roster ){
			pw.println( s.getName() + " " + s.getId() + " " + s.getGpa() );
		}
		pw.close();
	}
}