Sorting arrays File Write Classes

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Sorting arraysFile WriteClasses Objects as
Collectible
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import java.util.Arrays

• Arrays.sort ( a )
• // will sort in ascending order
• a can be Strings, integers, whatever

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• public class musicRecord // basic information
  about a songprivate String Songprivate String
  Artistprivate String Albumprivate int
  Durationprivate int TrackNumber// these
  items will help in sortingprivate int
  placeInSongListprivate int placeInArtistList

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• // constructor... create a music recordpublic
  musicRecord( String sname, String aname,
• String cdname,
  int time, int track ) Song sname
  Artist aname Album cdname Duration
  time TrackNumber track
  placeInArtistList 0 placeInSongList 0
  

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• public String getSong() return Song
  public String getArtist() return
  Artist
• public void setArtistPlace( int place )
  placeInArtistList place public void
  setSongPlace( int place ) placeInSongList
  place // a suitable print methodpublic
  void printSongRecord( )

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Writing to a file

• File f new File( "newfile.txt" )
• try
• FileWriter out new FileWriter( f )
• BufferedWriter writer new BufferedWriter(
  out )
• for (int x 0 xltlength x)
• writer.write( Artistx " " Songx
  )
• writer.newLine( )
• writer.close()
• catch ( IOException e )
• System.out.println(problem writing to file")