{"id":236842,"date":"2020-12-31T09:47:42","date_gmt":"2020-12-31T01:47:42","guid":{"rendered":"http:\/\/4563.org\/?p=236842"},"modified":"2020-12-31T09:47:42","modified_gmt":"2020-12-31T01:47:42","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-android-studio-4%e4%bc%9a%e6%8e%a8%e8%8d%90-list-%e8%ae%be%e4%b8%ba-final","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=236842","title":{"rendered":"\u4e3a\u4ec0\u4e48 Android Studio 4+\u4f1a\u63a8\u8350 List \u8bbe\u4e3a final"},"content":{"rendered":"
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\u4e3a\u4ec0\u4e48 Android Studio 4+\u4f1a\u63a8\u8350 List \u8bbe\u4e3a final <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : QBugHunter <\/span> <\/i> 5<\/span> <\/div>\n
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class School{ private List<String> studentNames = new ArrayList<>(); \/\/... }; <\/code><\/pre>\n
\u4e4b\u524d 3.X \u7248\u672c\u6ca1\u4ec0\u4e48\u95ee\u9898\uff0c\u4f46\u5230\u4e86 4.X \u7248\u672c\u5c31\u63d0\u793a\u6211\uff0c\u8be5\u57df\u53ef\u4ee5\u8bbe\u4e3a final,\u5373<\/p>\n
private final List<String> studentNames = new ArrayList<>(); <\/code><\/pre>\n
w \u4e3a\u4ec0\u4e48 4.X \u7248\u672c\u5c31\u63a8\u8350\u6211\u628a\u8fd9\u79cd\u7c7b\u578b\u7684 List \u8bbe\u4e3a final?<\/p>\n<\/p><\/div>\n
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 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (22<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : Smash <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4efb\u4f55\u4e0d\u9700\u8981\u6539\u53d8\u7684\u53d8\u91cf\u90fd\u7528 final\uff0c\u8fd9\u4e2a\u4e60\u60ef\u4e0d\u633a\u597d\u7684\u5417\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @Smash 
    \u4f46\u5b9e\u9645\u4e0a\u5728\u7c7b\u6210\u5458\u51fd\u6570\u91cc\uff0c\u6709\u5927\u91cf\u7684 add(),\u548c remove()\u4e4b\u7c7b\u7684\u51fd\u6570
    \u800c\u4e14\u5728 3.x \u7248\u672c\u662f\u6ca1\u6709\u8fd9\u4e2a\u63d0\u793a\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : acr0ss <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @QBugHunter Java \u53c8\u4e0d\u662f Rust \u3002 
    \u53d8\u91cf\u4e0d\u80fd\u91cd\u65b0\u8d4b\u503c\uff0c\u7c7b\u6210\u5458\u65b9\u6cd5\u64cd\u4f5c\u6ca1\u6709\u9650\u5236\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : wuliaoshixia <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u7528 kotlin \u5c31\u4e0d\u4f1a\u6709\u8fd9\u4e2a\u7591\u95ee\u4e86,\u9ed8\u8ba4\u90fd\u7528 val                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : yukong <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @QBugHunter add remove \u53c8\u4e0d\u4f1a\u6539\u53d8\u4f60 studentNames \u8fd9\u4e2a\u53d8\u91cf\u7684\u5f15\u7528\u5730\u5740 \u9664\u975e\u4f60 List \u5185\u90e8\u7684\u5bf9\u8c61\u6570\u7ec4\u4e5f\u662f final \u90a3\u624d\u662f\u4e0d\u80fd add remove                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : cshijiel <\/span>  <\/div>\n
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                                                                 @QBugHunter #2 final \u4e0e add \u3001remove \u4e0d\u51b2\u7a81                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : chendy <\/span>  <\/div>\n
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                                                                 \u56e0\u4e3a\u4f60\u4ee3\u7801\u91cc\u6ca1\u6709\u7ed9\u8fd9\u4e2a\u5b57\u6bb5\u91cd\u65b0\u8d4b\u503c\u7684\u5730\u65b9
    \u4e8e\u662f\uff0cide \u8ba4\u4e3a\u4f60\u7684\u4ee3\u7801\u903b\u8f91\u91cc\uff0c\u8fd9\u4e2a\u5b57\u6bb5**\u4e0d\u5e94\u8be5**\u88ab\u91cd\u65b0\u8d4b\u503c\uff0c\u6240\u4ee5\u5efa\u8bae\u8bbe\u7f6e\u6210 final \u907f\u514d\u88ab\u91cd\u65b0\u8d4b\u503c                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : ssynhtn <\/span>  <\/div>\n
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                                                                 \u8fd9\u79cd\u8fc7\u4e8e\u6b7b\u677f\u7684\u63d0\u793a\u53ef\u4ee5\u5173\u6389                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u4e3a\u4e86\u63d0\u9192\u4f60\u6362 kotlin                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : mind3x <\/span>  <\/div>\n
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                                                                 \u63a8\u8350\u9605\u8bfb\uff1a
    https:\/\/www.quora.com\/Why-is-immutability-so-important-in-software-development
    https:\/\/pasztor.at\/blog\/why-immutability-matters
    https:\/\/www.google.com\/search?q=why+immutability+is+important&oq=why+immu&aqs=chrome.0.0j69i57j0l6.2167j0j4&sourceid=chrome&ie=UTF-8<\/p>\n
    Java 15 \u4ee5\u540e\u53ef\u4ee5\u76f4\u63a5\u4e0a Record\uff0c15 \u4ee5\u524d\u53ef\u4ee5 https:\/\/immutables.github.io\/<\/p>\n
    \u5f53\u7136\uff0c\u76f4\u63a5 Kotlin\/Scala + val + data class \u4e5f\u662f\u7f8e\u597d\u7684\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : tiiime <\/span>  <\/div>\n
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                                                                 \u53cb\u60c5\u63d0\u9192\uff0cdata class \u505a api \u6709\u5927\u5751                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : binbinyouliiii <\/span>  <\/div>\n
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                                                                 @mind3x #10 \u9192\u9192\uff0c\u8fd9\u662f Android                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : VinsonGuo <\/span>  <\/div>\n
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                                                                 @tiiime \u6709\u5565\u5927\u5751                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : a0000 <\/span>  <\/div>\n
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                                                                 @tiiime \u540c\u95ee\u6709\u5565\u5927\u5751\uff0c\u80fd\u4e0d\u80fd\u8bb2\u8bb2\u78b0\u5230\u7684\u95ee\u9898                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @VinsonGuo @a0000 <\/p>\n
    https:\/\/jakewharton.com\/public-api-challenges-in-kotlin\/                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : 20015jjw <\/span>  <\/div>\n
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                                                                 \u8fd9\u4e0d\u5c31\u5e94\u8be5\u662f final \u5417
    \u4e0d\u80fd add \u7684\u662f immutable                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 \u8fd9\u662f\u57fa\u7840\u6ca1\u6253\u7262                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : lancelock <\/span>  <\/div>\n
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                                                                 \u4e0d\u9700\u8981\u6539\u53d8\u5c31 final \u5457\uff0c\u53c8\u6ca1\u5f71\u54cd\u3002\u50cf rust \u5b9a\u4e49\u7684\u53d8\u91cf\u9ed8\u8ba4\u5c31\u662f final \u3002\u5176\u5b9e\u8fd9\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u601d\u60f3\u5427\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4e0d\u7ba1\u4ed6                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : youla <\/span>  <\/div>\n
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                                                                 \u76f4\u89c9\u8ba9\u6211\u4ee5\u4e3a final list \u65e0\u6cd5 add                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : LGA1150 <\/span>  <\/div>\n
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                                                                 #2
    \u5982\u679c\u4f60\u4f1a C
    final: char *const;
    immutable: const char *;                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : kraits <\/span>  <\/div>\n
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                                                                 \u5199\u4e86 final \u540e\uff0c\u4e0d\u80fd\u518d\u6709\u5176\u4ed6\u7684\u540c\u7c7b\u578b\u53d8\u91cf\u6307\u5411\u5b83\uff0c\u5982\u679c\u8fd9\u4e2a\u53d8\u91cf\u5305\u542b\u5728\u4e00\u4e2a\u7c7b\u91cc\uff0cnew \u5bf9\u8c61\u65f6\u5019\u5b83\u5c31\u4e0d\u80fd\u662f null \u3002
    \u53ef\u80fd\u4e3b\u5bf9\u8fd9\u4e2a final \u6709\u8bef\u89e3\uff0cadd remove \u662f\u8fd9\u4e2a \u7c7b\u7684 method\uff0c\u5199\u4e86 final \u4ecd\u7136\u53ef\u4ee5\u8c03\u7528 method \u3002\u8fd9\u662f\u6307\u9488\u95ee\u9898                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : hantsy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @youla \u90a3\u662f Immutable. <\/p>\n
    Java \u4e2d\u76ee\u524d\u53ea\u6709 List.of, Set.of, Map.of \uff0c \u8fd8\u6709 Collections.immutableXXX \u521b\u5efa\u7684 Collection \u662f\u65e0\u6cd5\u53d8\u66f4\u7684\uff0c\u6709 Immutable \u6982\u5ff5\u3002<\/p>\n
    Guava \u6709\u5f88\u591a\u8865\u5145\u7c7b\u3002<\/p>\n
    final \u7528\u7c7b\u7684\u5c5e\u6027\u4e0a\u662f\u9632\u6b62\u91cd\u65b0\uff08\u4f7f\u7528=\uff09\u8d4b\u503c\uff0c\u7528\u5728 \u7c7b\u4e0a\u9762\u662f\u4e3a\u963b\u6b62\u7ee7\u627f\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    \u4e3a\u4ec0\u4e48 Android Studi…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/236842"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=236842"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/236842\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=236842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=236842"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=236842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}