Re: Extracting data elements from a user-defined class stored in an ArrayList

• Subject: Re: Extracting data elements from a user-defined class stored in an ArrayList
• From: Moritz Petersen <email@hidden>
• Date: Sun, 11 Nov 2007 17:12:19 +0100
• Delivered-to: email@hidden
• Delivered-to: email@hidden

public static void printArrayList(ArrayList personArrayList)

The statement “System.out.println ( personArrayList.get (0).getFirstName() );”
works fine in the class DataInputDemo where the ArrayList is instantiated but not in the printArrayList method.

System.out.println ( ((Person) personArrayList.get(0)).getFirstName() );

or you change the method parameter to

public static void printArrayList(ArrayList<Person> personArrayList)

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Java-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/java-dev/email@hidden

• Prev by Date: Re: turn off double buffering
• Next by Date: Button mnemonics on Leopard
• Previous by thread: Re: (Resolved) Extracting data elements from a user-defined class stored in an ArrayList
• Next by thread: Compiling JNI Libs on 10.5 (for 10.4)
• Index(es):
  • Date
  • Thread