troubleshooting Question

Sort list of complex objects alphabetically

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DJ_AM_Juicebox asked on
5 Comments1 Solution279 ViewsLast Modified:

I need to sort a list of complex objects. Looks like this:

  class Farm {
     String name;
     Data mLotsOfData;

  List<Farm> farms = getAllFarms();

  // Now i want to build a new alphabetical list.
  TreeMap<String, Farm> alpha = new TreeMap<String, Farm>();
  for (all farms) {
      alpha.put(farms.get(i).name, farms.get(i));

  // Back to a list.
  ArrayList<Farm> alphaFarms = new ArrayList<Farm>();
  for (all in alpha) {

but it seems to not do anything -what's the right way to do this?

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