{"id":184020,"date":"2020-10-29T20:20:47","date_gmt":"2020-10-29T12:20:47","guid":{"rendered":"http:\/\/4563.org\/?p=184020"},"modified":"2020-10-29T20:20:47","modified_gmt":"2020-10-29T12:20:47","slug":"%e6%9c%89%e4%bb%80%e4%b9%88%e5%8a%9e%e6%b3%95%e5%8f%af%e4%bb%a5%e5%bf%ab%e9%80%9f%e7%9a%84%e6%af%94%e8%be%83%e4%b8%a4%e4%b8%aa%e6%95%b0%e7%bb%84%e5%b7%ae%e5%bc%82","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=184020","title":{"rendered":"\u6709\u4ec0\u4e48\u529e\u6cd5\u53ef\u4ee5\u5feb\u901f\u7684\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u5dee\u5f02"},"content":{"rendered":"
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\u6709\u4ec0\u4e48\u529e\u6cd5\u53ef\u4ee5\u5feb\u901f\u7684\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u5dee\u5f02 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : stevenkang <\/span> <\/i> 6<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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\u73af\u5883\uff1ajava8\uff0cspringboot \u9879\u76ee<\/p>\n

\u60f3\u8fc7\u7528 stream filter \u8fc7\u6ee4\uff0c\u4f46\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff0c\u53ef\u80fd\u6570\u7ec4\u4e2d\u5141\u8bb8\u91cd\u590d\u503c\uff0c<\/p>\n

\u4f8b\u5982\uff1a[A, B, B, C] \u548c [B, B, B, C, D] \u4e24\u4e2a\u6570\u7ec4\uff0c\u73b0\u5728\u60f3\u628a\u591a\u4f59\u7684\u548c\u7f3a\u5c11\u7684\u627e\u51fa\u6765\uff0c<\/p>\n

\u8fd9\u91cc\u7684\u7ed3\u679c\u5e94\u8be5\u662f\uff1a\u7f3a\u5c11 1 \u4e2a A\uff0c\u591a\u4f59 1 \u4e2a B \u548c D<\/p>\n

Java \u6709\u5565\u4f18\u96c5\u7684\u529e\u6cd5\u5feb\u901f\u6bd4\u8f83\u51fa\u6765\u5462\uff0c\u6216\u8005\u6709\u5565\u73b0\u6210 util \u6ca1\u3002<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (7<\/span>) <\/div>\n
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    \u8cc7\u6df1\u5927\u4f6c : liuxiaohua <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u81ea\u5df1\u5199\u4e8c\u4e2a\u65b9\u6cd5\u5f97\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : chendy <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u505a\u4e2a \u5b57\u6bcd -> \u6b21\u6570 \u7684 map\uff0c\u904d\u5386\u524d\u4e00\u4e2a\u505a\u52a0\u6cd5\uff0c\u540e\u4e00\u4e2a\u505a\u51cf\u6cd5\uff0c\u8fc7\u6ee4\u6389\u6b21\u6570 0 \u7684\uff0c\u5269\u4e0b\u7684\u5c31\u662f\u5dee\u5f02\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : SuperMari0 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5206\u522b\u5bf9\u4e24\u4e2a\u6570\u7ec4 GroupBy \u518d\u9488\u5bf9 GroupBy \u7684\u7ed3\u679c\u8fdb\u884c\u6bd4\u8f83??? <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : SuperMari0 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @chendy \u770b\u4e86\u4f60\u7684\u529e\u6cd5\u7a81\u7136\u60f3\u8d77\u6765\u597d\u50cf\u5237\u8fc7\u8fd9\u9053\u7b97\u6cd5\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : azcvcza <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7528 set \uff1f js \u91cc\u5c31\u65b0\u5efa\u4e24\u4e2a set\uff0c\u7136\u540e\u7528\u8fd9\u4e24\u4e2a set \u6c42\u4ea4\u96c6\uff0c\u6c42\u5dee\u96c6 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : MoYi123 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u8fd9\u53d1\u5e16\u7684\u65f6\u95f4\uff0c\u4f60\u81ea\u5df1\u5199\u4e00\u4e2a\u90fd\u5199\u5b8c\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
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    \u8cc7\u6df1\u5927\u4f6c : user8341 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e8c\u90fd\u5df2\u7ecf\u7ed9\u51fa\u601d\u8def\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u6709\u4ec0\u4e48\u529e\u6cd5\u53ef\u4ee5\u5feb\u901f\u7684\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u5dee…<\/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\/184020"}],"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=184020"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/184020\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=184020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=184020"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=184020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}