Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.java.programmer > #36768

Re: Eclipse

From Martin Gregorie <martin@address-in-sig.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: Eclipse
Date 2017-06-29 18:58 +0000
Organization A noiseless patient Spider
Message-ID <oj3ik3$c4n$1@dont-email.me> (permalink)
References (1 earlier) <f4c93896-75b3-472d-9564-ee5f93839fcb@googlegroups.com> <5314f277-558b-43d1-8564-460ab8dab26a@googlegroups.com> <1b033cbe-4bc2-497f-9c93-e6e90b75f39b@googlegroups.com> <oj3cof$rbp$1@dont-email.me> <7dff7a25-5881-4ecb-a937-ab076082dfcd@googlegroups.com>

Show all headers | View raw


On Thu, 29 Jun 2017 11:08:26 -0700, Eric Douglas wrote:

> On Thursday, June 29, 2017 at 1:22:13 PM UTC-4, Martin Gregorie wrote:
>> On Thu, 29 Jun 2017 06:05:31 -0700, Eric Douglas wrote:
>> 
>> > I have some different types of JComponent classes which implement
>> > MyCustomInterface, and some JComponent which do not implement.
>> > I have a class level variable defined as
>> > ArrayList<MyCustomInterface>.
>> >
>> Shouldn't you be using the name of the class that implements the
>> MyCustomInterface Interface rather than the name of the Interface?
>> 
>> 
>> 
> That's why it's an interface.  This array holds instances of several
> different classes which implement the interface.  They're all components
> and they all require custom methods described in the interface.  They
> come from different classes, one might extend JTextField, another
> extends JComboBox.  I need to check this group of controls against
> generic Component because I'm looking at the values from getComponent()
> and getOppositeComponent() in a focusGained().

Err, not really. An Interface defines a set of methods that must all be 
defined by an Interface but is not a Class anbd I think thats what is 
making Eclipse spit.

I think you need to declare the various classes that implement 
MyCustomInterface into subclasses of an (abstract?) superclass that 
extends JContainer which, at a quick glance, inherits the methods you 
mention from Container and Component. 


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-28 07:57 -0700
  Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-28 09:04 -0700
    Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-28 12:07 -0700
      Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-29 06:05 -0700
        Re: Eclipse Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-29 09:32 -0400
          Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-29 06:42 -0700
        Re: Eclipse Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-06-29 09:47 -0400
          Re: Eclipse Andreas Leitgeb <avl@logic.at> - 2017-06-30 14:47 +0000
            Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 08:22 -0700
              Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-07-07 06:19 -0700
                Re: Eclipse Andreas Leitgeb <avl@logic.at> - 2017-07-13 09:29 +0000
        Re: Eclipse Martin Gregorie <martin@address-in-sig.invalid> - 2017-06-29 17:18 +0000
          Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-29 11:08 -0700
            Re: Eclipse Martin Gregorie <martin@address-in-sig.invalid> - 2017-06-29 18:58 +0000
              Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-29 12:55 -0700
                Re: Eclipse Martin Gregorie <martin@address-in-sig.invalid> - 2017-06-29 21:31 +0000
                Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-30 04:55 -0700
                Re: Eclipse Martin Gregorie <martin@address-in-sig.invalid> - 2017-06-30 13:02 +0000
              Re: Eclipse Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-06-29 16:34 -0400
                Re: Eclipse Eric Douglas <e.d.programmer@gmail.com> - 2017-06-29 13:49 -0700
                Re: Eclipse Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-06-29 18:16 -0400
  Re: Eclipse Arne Vajhøj <arne@vajhoej.dk> - 2017-07-02 11:56 -0400

csiph-web