Making A Song Collection Sort Program

Mar 8, 2014

I'm doing a project with very defined requirements. Input and output will be done to and from a file. Both the input and output files should have the same format. Each file will consist of a series of lines formatted as follows:

Year Rank Artist Title

That is, each line of the file will consist of the year, rank, artist, and title of a single song, with each of the fields separated by tabs ( ). Output files must maintain this format—you should be able to use the output file of one run of the program as the input to another run.

The first part of my project is to make a Song class, with 6 methods:

public static Song parse(String s) { //Parse a string of the form “Year Rank Artist Title” and create a Song object with the given values.
}
public int getYear() { //returns the year of the song
}
public int getRank() { //returns the rank of the song

[Code] .....

So far, I have worked out my Song class like this:

Java Code:

import java.util.Scanner;
public class Song {
private int year;
private int rank;
private String artist;
private String title;

[Code] ....

I know there's definitely a problem with my parsing, as I am getting the

Exception in thread "main" java.util.NoSuchElementException

when I attempt to input a test String at my variables.

Should I try using StringTokenizer and Integer.parseInt()? I think that perhaps the reason why an error is occuring is because the String is being parsed into Strings and there are no int values to be inputted into the year and rank variables.

Or is there a way to do this with Scanner?

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