Sorting on int field of object

The following code works fine for sorting on the title (String) field of the object Song. But if I want to sort on the intRating (int) field and I change line #53 to "return intRating.compareTo(s.getIntRating());" I get and error in NetBeans saying "int cannot be dereferenced." How can I go about sorting on this int field?

Thank you for your help.

package jukebox3;

import java.util.*;
import java.io.*;
import java.lang.Package;

public class JukeBox3 {

ArrayList<Song> songList = new ArrayList<Song>();

public static void main(String[] args) {
        new JukeBox3().go();
    }

public void go() {
        getSongs();
        String songTitle = songList.get(0).title;
        System.out.println(songList);
        Collections.sort(songList);
        System.out.println(songList);

}

void getSongs() {
        try {
            File file = new File("SongList.txt");
            BufferedReader reader = new BufferedReader(new FileReader(file));
            String line;
            while ((line = reader.readLine()) != null) {
                addSong(line);
            }
        } catch(Exception ex) {
            ex.printStackTrace();
        }
    }

void addSong(String lineToParse) {
        String[] tokens = lineToParse.split("/");
        Song nextSong = new Song(tokens[0], tokens[1], tokens[2], tokens[3]);
        songList.add(nextSong);
    }
}

class Song implements Comparable<Song>{
    String title;
    String artist;
    String rating;
    String bpm;
    int intRating;
    int intBpm;

public int compareTo(Song s) {
        return title.compareTo(s.getTitle());
    }

Song(String t, String a, String r, String b) {
            title = t;
            artist = a;
            rating = r;
            bpm = b;
            intRating = Integer.parseInt(rating);
            intBpm = Integer.parseInt(bpm);
    }

void makeTitleUpper(String t) {
        t.toUpperCase(Locale.US);
    }

public String getTitle() {
        return title;
    }

public String getArtist() {
        return artist;
    }

public String getRating() {
        return rating;
    }

public String getBpm() {
        return bpm;
    }

public String toString() {
        return title;
    }

public int getIntRating() {
        return Integer.parseInt(rating);
    }

}

intRating is an int, which is a primitive type. The C# language allows you to call methods on primitive types but Java does not. You need to change your code to use the syntax that compares two primitive types.

Tom Reilly wrote:intRating is an int, which is a primitive type. The C# language allows you to call methods on primitive types but Java does not. You need to change your code to use the syntax that compares two primitive types.

Or change the int to an wrapped Integer type ...

Thank you for your help. That worked.

Tom Reilly wrote:intRating is an int, which is a primitive type. The C# language allows you to call methods on primitive types but Java does not. You need to change your code to use the syntax that compares two primitive types.

Just a warning: don't use simple subtraction to compare the two. That will give you problems when overflow occurs. Consider the following example:
That's why I always use < and >, usually in a nested terniary operator for brevity:
After all, the comparison only cares if the value is 0, negative or positive. The actual value does not matter.

Of course, since the result of any mathematical operation is never smaller than int, you can simply use subtraction for bytes, chars and shorts: