song collection class

import java.io.File;
import java.io.FileNotFoundException;
import java.util.*;
public class SongCollection {
	//fields
	public static ArrayList<Song> songCollection = new ArrayList<Song>();
	public static ArrayList<Song> currentCollection = new ArrayList<Song>();

	//main
	public static void main(String[] args) {
		//read in the file, iterate through it and add to the song collection ArrayList
		try {
			Scanner songsFile = new Scanner(new File("C:\\Users\\s-weidnerl\\eclipse-workspace\\Unit8Project\\src\\agazillionsongs.txt")); //read in the file
			while (songsFile.hasNextLine()) {
				songCollection.add(new Song(songsFile.nextLine()));
			}
			songsFile.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		resetCollection();
		filterYear(new Range("1995-1995"));
		//printCollection();
		}

	//filters
	public static void filterYear(Range yearRange) {
		sortYear();
		//if the first value is greater than the max or less than the min.
		System.out.println(currentCollection.get(0).getYear());
		System.out.println(yearRange.getMax());
		if (currentCollection.get(0).getYear() < yearRange.getMax()) { //if the fist item is greater than the greatest value
			int minIndex = -1;
			int maxIndex = -1;
			ArrayList<Song> newCollection = new ArrayList<Song>();
			for (int i = 0; i < currentCollection.size() || maxIndex >= 0; i++) {
				if (minIndex < 0 && currentCollection.get(i).getYear() >= yearRange.getMin()) { //look for first instance within range in sorted list
					minIndex = i;
					System.out.println("Min index set to " + minIndex);
				}
				if (maxIndex < 0 && currentCollection.get(i).getYear() < yearRange.getMax()) { //find last index within range in sorted list
					maxIndex = i-1;
				}
			}
			for (int i = minIndex; i == maxIndex; i++) { //construct ArrayList of only values between max and min
				newCollection.add(currentCollection.get(i));
			}
			currentCollection = newCollection;
		} else {
			System.out.println("That is not a valid range.");
		}
	}

	public static void filterRank(Range rankRange) {

	}

	public static void filterArtist(String filter) {

	}

	public static void filterTitle(String filter) {

	}

	//sorts
	public static void sortYear() {
		for (int i = 1; i < currentCollection.size(); i++) { //for each value after the first
			int currentValue = currentCollection.get(i).getYear(); //set current value to the year of the current element
			int j = i; //set a temp variable for index swapping
			while(j > 0 && currentCollection.get(j).getYear() < currentCollection.get(j-1).getYear()) { //while j is above 0th index, and while it's less than the value before it
				Song temp = new Song(String.format("%d\t%d\t%s\t%s", currentCollection.get(j).getYear(),currentCollection.get(j).getRank(),currentCollection.get(j).getArtist(),currentCollection.get(j).getTitle())); //set a temp variable to j's index
				currentCollection.set(j, currentCollection.get(j-1)); //set j-1 to j's value
				currentCollection.set(j-1, temp); //set j to temp (j-1's) value
				j--; //reduce j by 1
				System.out.println(j);
			}
		}
	}

	public static void sortRank() {

	}

	public static void sortArtist() {

	}

	public static void sortTitle() {

	}

	//Other Methods
	public static void resetCollection() {
		currentCollection = songCollection;
	}

	public static void printCollection() {
		System.out.println("Rank\tYear\tSong");
		for (int song = 0; song < currentCollection.size(); song++) {
			System.out.println(currentCollection.get(song));
		}
	}
}