pblic class Test
{
  public static final Test test1=new Test("a");
  public static final Test test2=new Test("b");
  public static final Test test3=new Test("c");

  //instance
  public static String instance;

 public Test(String init)
{
  instance=init;
}

.
.
.

public enum myEnum
{
 APPLE{{this.enumtest=Test.test1}};

Test enumtest;
.
.
.