Return a seperate randomized list?
I'm wondering if there is a built-in method to return a new randomized list, but all the answers I found is using Collections.shuffle(list) that shuffles the original list.
List<String> list = new LinkedList<String>();
// ...
Collections.shuffle(list); // Shuffles the original list
Is there some method that returns a new randomized list, instead of the modifying the original list?
java list collections
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
add a comment |
I'm wondering if there is a built-in method to return a new randomized list, but all the answers I found is using Collections.shuffle(list) that shuffles the original list.
List<String> list = new LinkedList<String>();
// ...
Collections.shuffle(list); // Shuffles the original list
Is there some method that returns a new randomized list, instead of the modifying the original list?
java list collections
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
1
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15
add a comment |
I'm wondering if there is a built-in method to return a new randomized list, but all the answers I found is using Collections.shuffle(list) that shuffles the original list.
List<String> list = new LinkedList<String>();
// ...
Collections.shuffle(list); // Shuffles the original list
Is there some method that returns a new randomized list, instead of the modifying the original list?
java list collections
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
I'm wondering if there is a built-in method to return a new randomized list, but all the answers I found is using Collections.shuffle(list) that shuffles the original list.
List<String> list = new LinkedList<String>();
// ...
Collections.shuffle(list); // Shuffles the original list
Is there some method that returns a new randomized list, instead of the modifying the original list?
java list collections
java list collections
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
asked Nov 20 '18 at 3:11
IambicDiameterIambicDiameter
285
285
1
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15
add a comment |
1
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15
1
1
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15
add a comment |
1 Answer
1
active
oldest
votes
Create a new List and shuffle it.
List<String> list = new LinkedList<>();
List<String> newList = new LinkedList<>(list);
Collections.shuffle(newList);
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
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%2f53385664%2freturn-a-seperate-randomized-list%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
Create a new List and shuffle it.
List<String> list = new LinkedList<>();
List<String> newList = new LinkedList<>(list);
Collections.shuffle(newList);
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
add a comment |
Create a new List and shuffle it.
List<String> list = new LinkedList<>();
List<String> newList = new LinkedList<>(list);
Collections.shuffle(newList);
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
add a comment |
Create a new List and shuffle it.
List<String> list = new LinkedList<>();
List<String> newList = new LinkedList<>(list);
Collections.shuffle(newList);
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
Create a new List and shuffle it.
List<String> list = new LinkedList<>();
List<String> newList = new LinkedList<>(list);
Collections.shuffle(newList);
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
answered Nov 20 '18 at 3:16
KartikKartik
3,69731435
3,69731435
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%2f53385664%2freturn-a-seperate-randomized-list%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
1
Just make a copy yourself and pass that to shuffle.
– Sotirios Delimanolis
Nov 20 '18 at 3:15