Java file to byte array

package com.candidjava.file;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileReader;
import java.nio.file.Files;
import java.nio.file.Paths;

public class JavaFileToByteArray {
  public static void main(String[] args) throws Exception {
    File file = new File("F:/Files/sample.mp3");
    FileReader fr = new FileReader(file);
    int i;

    while ((i = fr.read()) != -1) {

      byte b[] = new byte[] { (byte) i };
      for (byte temp : b) {
        System.out.println(temp);
      }
    }

  }
}