Can I create a class from an object?
for example, I use
Rectangle pinkSquare = FXMLLoader.load(Paths.get("layout", "Pink square.fxml").toUri().toURL())
created a Rectangle object. Can I make a class out of pinkSquare object, say PinkSquare and use it freely for create more objects?
I know I can use FXMLLoader to do this again, but can I create a class from pinkSquare anyway?
java class object javafx
asked Nov 15 '18 at 11:49
ChesterChester
32
add a comment |
for example, I use
Rectangle pinkSquare = FXMLLoader.load(Paths.get("layout", "Pink square.fxml").toUri().toURL())
created a Rectangle object. Can I make a class out of pinkSquare object, say PinkSquare and use it freely for create more objects?
I know I can use FXMLLoader to do this again, but can I create a class from pinkSquare anyway?
java class object javafx
asked Nov 15 '18 at 11:49
ChesterChester
32
instance.getClass()
– Michael
Nov 15 '18 at 11:53
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@fabian keeppinkSquare's state and save it as a subclass ofRectangle
– Chester
Nov 15 '18 at 13:10
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11
add a comment |
for example, I use
Rectangle pinkSquare = FXMLLoader.load(Paths.get("layout", "Pink square.fxml").toUri().toURL())
created a Rectangle object. Can I make a class out of pinkSquare object, say PinkSquare and use it freely for create more objects?
I know I can use FXMLLoader to do this again, but can I create a class from pinkSquare anyway?
java class object javafx
asked Nov 15 '18 at 11:49
ChesterChester
32
for example, I use
Rectangle pinkSquare = FXMLLoader.load(Paths.get("layout", "Pink square.fxml").toUri().toURL())
created a Rectangle object. Can I make a class out of pinkSquare object, say PinkSquare and use it freely for create more objects?
I know I can use FXMLLoader to do this again, but can I create a class from pinkSquare anyway?
java class object javafx
java class object javafx
asked Nov 15 '18 at 11:49
ChesterChester
32
asked Nov 15 '18 at 11:49
ChesterChester
32
asked Nov 15 '18 at 11:49
ChesterChester
32
asked Nov 15 '18 at 11:49
ChesterChester
32
asked Nov 15 '18 at 11:49
ChesterChester
32
32
instance.getClass()
– Michael
Nov 15 '18 at 11:53
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@fabian keeppinkSquare's state and save it as a subclass ofRectangle
– Chester
Nov 15 '18 at 13:10
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11
add a comment |
instance.getClass()
– Michael
Nov 15 '18 at 11:53
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@fabian keeppinkSquare's state and save it as a subclass ofRectangle
– Chester
Nov 15 '18 at 13:10
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11
instance.getClass()– Michael
Nov 15 '18 at 11:53
instance.getClass()– Michael
Nov 15 '18 at 11:53
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@fabian keep
pinkSquare's state and save it as a subclass of Rectangle– Chester
Nov 15 '18 at 13:10
@fabian keep
pinkSquare's state and save it as a subclass of Rectangle– Chester
Nov 15 '18 at 13:10
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11
add a comment |
1 Answer
1
active
oldest
votes
There's no built in way to do that but you could extend Rectangle class and create a method that returns a deep copy of it. However, that's just unnecessary work when you could just use FXMLLoader again, unless there's some significant performance gain from deep copying compared to loading the FXML, but I highly doubt that's the case.
answered Nov 15 '18 at 11:58
GnasGnas
52829
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53318848%2fcan-i-create-a-class-from-an-object%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
There's no built in way to do that but you could extend Rectangle class and create a method that returns a deep copy of it. However, that's just unnecessary work when you could just use FXMLLoader again, unless there's some significant performance gain from deep copying compared to loading the FXML, but I highly doubt that's the case.
answered Nov 15 '18 at 11:58
GnasGnas
52829
add a comment |
There's no built in way to do that but you could extend Rectangle class and create a method that returns a deep copy of it. However, that's just unnecessary work when you could just use FXMLLoader again, unless there's some significant performance gain from deep copying compared to loading the FXML, but I highly doubt that's the case.
answered Nov 15 '18 at 11:58
GnasGnas
52829
add a comment |
There's no built in way to do that but you could extend Rectangle class and create a method that returns a deep copy of it. However, that's just unnecessary work when you could just use FXMLLoader again, unless there's some significant performance gain from deep copying compared to loading the FXML, but I highly doubt that's the case.
answered Nov 15 '18 at 11:58
GnasGnas
52829
There's no built in way to do that but you could extend Rectangle class and create a method that returns a deep copy of it. However, that's just unnecessary work when you could just use FXMLLoader again, unless there's some significant performance gain from deep copying compared to loading the FXML, but I highly doubt that's the case.
answered Nov 15 '18 at 11:58
GnasGnas
52829
answered Nov 15 '18 at 11:58
GnasGnas
52829
answered Nov 15 '18 at 11:58
GnasGnas
52829
answered Nov 15 '18 at 11:58
GnasGnas
52829
52829
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53318848%2fcan-i-create-a-class-from-an-object%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
instance.getClass()– Michael
Nov 15 '18 at 11:53
What would you expect this classes functionality to be?
– fabian
Nov 15 '18 at 12:14
@Michael I'm not trying to get the 'Rectangle' class, I wanna keep the state information of 'pinkSquare' and save it as a subclass of 'Rectangle'
– Chester
Nov 15 '18 at 13:08
@fabian keep
pinkSquare's state and save it as a subclass ofRectangle– Chester
Nov 15 '18 at 13:10
@Chester You can't create classes at runtime*. You create instances of classes at runtime. (*well, technically you can, but you shouldn't)
– Michael
Nov 15 '18 at 13:11