The new for loop in Java 5

Along with generics and enumerations, Java 5 acquired a new for loop befitting (especially) the new generics stuff. It's a kind of foreach construct you've seen in other languages such as bash. Here I give a rather good example.

Inside this code

In terms of beginning Java samples you have:

• Use of the new for loop construct
• An illustration of using ArrayList with generics

In the example below, DvdCreateTestTitles.main() creates 4 serializations of objects of type DvdTitle for test purposes within a larger application. Inside DvdCreateTestTitles.java, titlenames is defined:

public static ArrayList< String > titlenames = new ArrayList< String >();

public static void main( String[] args )
{
  DvdTitle              title  = null;
  ArrayList< DvdTitle >  titles = new ArrayList<>();

  DvdCreateTestTitles.main( null );

  for( String  aTitle : DvdCreateTestTitles.titlenames )
  {
    try
    {
      title = loadTitleFromFile( aTitle );
    }
    catch( FileNotFoundException e )
    {
      log.error( "Failed to find "
                 + aTitle
                 + "\n"
                 + e.getMessage() );
    }
    catch( IOException e )
    {
      log.error( "IOException occurred loading from "
                 + aTitle
                 + "\n"
                 + e.getMessage() );
    }
    .
    .
    .
    titles.add( title );
    .
    .
    .
  }

This is the same as we used to do like this:

  public static void main( String[] args )
  {
    ArrayList< DvdTitle > titles = new ArrayList< DvdTitle >();

    DvdCreateTestTitles.main( null );

    for( int i = 0; i < DvdCreateTestTitles.titlenames.size(); i++ )
    {
      String  aTitle = DvdCreateTestTitles.titlenames.get( i );
      .
      .
      .
    }

—more elegant, I think.