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:VLJ4IJIP !TIJIPDIBO 8IBUˏTOFXJO "OESPJEBU*0ˏ (PPHMF*0ؿ؍٦سغحؙ⠓JO

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"CPVUNF 䘊歂⣇秀:6,*4)*)0 !TIJIPDIBO "OESPJE"QQ%FWFMPQFSBU$ZCFS"HFOU *OD !TIJIPDIBOEFTV 4IJCVZBBQL

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.PCJMFSTUUP"*STU

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.Z*0ˏ 㸜㹀ך衅鼅

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.Z*0ˏ 䗁崞

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8IZ׃ק

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(PPHMF*0

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(PPHMF*OQVU0VUQVU

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.Z*0ˏ ׃קˏT*OQVU ˖ (PPHMF,FZOPUF ˖ %FWFMPQFS,FZOPUF ˖ 8IBUT/FXJO"OESPJE ˖ "OESPJE1FSGPSNBODF"O0WFSWJFX ˖ &YP1MBZFS'MFYJCMFNFEJBQMBZCBDLGPS"OESPJE ˖ #FTU1SBDUJDFTUPTMJNEPXOZPVSBQQTJ[F ˖ 'SBHNFOU5SJDLT ˖ 8IBUT/FXJO"OESPJE%FWFMPQNFOU5PPMT ˖ *OUSPEVDUJPOUP"OESPJE*OTUBOU"QQT ˖ 8IBUTOFXJO"OESPJE4FDVSJUZ ˖ 8IBUTOFXJO"OESPJE%FTJHO5PPMT/FXGFBUVSFTBOE UPPMTGPSSBQJE6*EFWFMPQNFOU ˖ 8IBUTOFXJO/PUJDBUJPOT -BVODIFS*DPOTBOE4IPSUDVUT ˖ 4QFFEJOHVQZPVS"OESPJE(SBEMFCVJMET ˖ 1FSGPSNBODFBOE.FNPSZ*NQSPWFNFOUTJO"OESPJE3VO 5JNF "35 "OE.03&٥٥٥

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.Z*0ˏ ׃קˏT0VUQVU ˖ (PPHMF*0䮶׶鵤׶BU"11%0+0 ˖ IUUQTTQFBLFSEFDLDPNTIJIPDIBOXIBUTOFXJO BOESPJEEFWFMPQNFOUUPPMTQMVTHPPHMFQMBZ ˖ $"BQL(PPHMF*0㜠デ⠓ ˖ IUUQTTQFBLFSEFDLDPNTIJIPDIBOXIBUTOFXJO BOESPJEEFWFMPQNFOUUPPMT ˖ (PPHMF*0ؿ؍٦سغحؙ⠓ ˖ /PX ˖ VNFEBBQL3FQPSUGSPN(PPHMF*0 ˖ $PNNJOHTPPO

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˖ ,PUMJO ˖ *OTUBOU"QQT ˖ 1MBZ$POTPMF 5PEBZˏTUPQJDT

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0DJBMMZ4VQQPSUFE

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˖ 䎃㢙։ ˖ +FU#SBJOT醡 ˖ +7.鎉铂 ˖ 㘗䱿锷װٓيت䒭 ˖ /6--㸜Ⰻ/VMM1PJOUFS&YDFQUJPOIBTHPOF 8IBUJT,PUMJO

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˖ +BWBהך㸣Ⰻ✼䳔䚍ָ֮׷ ˖ +BWB״׶知患ד㸜Ⰻ ˖ 㸣樴ז*%&؟ه٦ز 8IZ,PUMJO

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8IZ,PUMJO public class JavaMeetup { @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } JavaMeetup that = (JavaMeetup) o; if (memberCount != that.memberCount) { return false; } return name != null ? name.equals(that.name) : that.name == null; } @Override public int hashCode() { int result = name != null ? name.hashCode() : 0; result = 31 * result + memberCount; return result; } @Override public String toString() { return "JavaMeetup {" + "name = " + name + "memberCount = " + memberCount + "\n" + '}'; } private String name; private int memberCount; public JavaMeetup(String name, int memberCount) { this.name = name; this.memberCount = memberCount; } public String getName() { return name; } public int getMemberCount() { return memberCount; } } *O+BWB

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8IZ,PUMJO data class Meetup(val name: String, val memberCount: String) *O,PUMJO

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˖ ˖ ؿ؋؎ַٕ׵,PUMJOפ ˖ ؝٦سꆀָ幾׷ ˖ ؒٝآص،ךذٝءّٝ̓̓ ˖ ˖ 暴瘗ׅץֹ׮ךכז׃ ˖ 㷕统؝أز ˖ ⚥鷿⼱畭ח幉׈׷ךכ׌׭ ,PUMJO

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˖ J04ה"OESPJEכ呎劤涸ח麩ֲ ˖ 4XJGUה,PUMJOכ⡂גꬊז׷鎉铂 ˖ J04 ˖ 0CKFDUJWFDխ̔խ4XJGU ˖ 㛇劤涸ח4XJGU♧䫛 ˖ "OESPJE ˖ (PPHMFչ+BWB׮刿ז׷؟ه٦ز׾պ ˖ 穠锷ו׍׵ד׮葺ְ ,PUMJOWT4XJGU

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˖ ,PUMJO ˖ *OTUBOU"QQT ˖ 1MBZ$POTPMF 5PEBZˏTUPQJDT

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˖ (PPHMF*0ד涪邌 ˖ *0ˏדאְחٔٔ٦أ〳腉ח ˖ 63-זוַ׵ծ؎ٝأز٦ٕ搀׃ד⢪ְ䰍גך،فٔ׾ ⵃ欽ׅ׷ֿהָ〳腉 8IBUJT*OTUBOU"QQT

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8IBUJT*OTUBOU"QQT %&.0

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˖ "QQה*OTUBOU"QQTד69׾㢌ִגכז׵זְ ˖ ⰻ鿇ך堣腉ך׫׾䭍׶׌ׅ؎ً٦آ ˖ 㛇劤涸ח鷄⸇Ꟛ涪כ䗳銲ז׃ ˖ "4ךչ.PEVMBSJ[Fպ׾ⵃ欽 ˖ ˑ㛇劤涸חכ˒ )PXUPEFWFMPQ*OTUBOU"QQT

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3FGFSFODFT*OTUBOU"QQT ˖ *OUSPEVDUJPOUP"OESPJE*OTUBOU"QQT ˖ IUUQTHPPHMG6MWM ˖ #VJMEJOHBO"OESPJE*OTUBOU"QQ ˖ IUUQTHPPHMI5(HC

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˖ ,PUMJO ˖ *OTUBOU"QQT ˖ 1MBZ$POTPMF 5PEBZˏTUPQJDT

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1MBZ$POTPMF

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1MBZ$POTPMF ˖ 1MBZ$POTPMF ˖ չ1MBZ%FWFMPQFS$POTPMFպַ׵せ獥㢌刿 ˖ وذٔ،ٕرؠ؎ٝ㼎䘔 ˖ ⴓꅿד倜堣腉鷄⸇ה堣腉ぢ♳ ˖ ،فٔㅷ颵ךぢ♳խ̔խ"OESPJEWJUBMT ˖ 㸜Ⰻזٔٔ٦أך酡⸔խ̔խ3FMFBTFEBTICPBSE ˖ ؽآطأؚٗ٦أխ̔խ4VCTDSJQUJPOT%BTICPBSE

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(SPXZPVSCVTJOFTT ˖ 4VCTDSJQUJPOT%BTICPBSE ˖ 㹀劍飑铣׾ؚٗ٦أׇׁ׷׋׭ךخ٦ٕ ˖ ٖه٦ز ˖ "DRVJTJUJPOٖه٦ز ˖ 3FUFOUJPOٖه٦ز ˖ $IVSOٖه٦ز

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˖ 4VCTDSJQUJPOT%BTICPBSE ˖ "DRVJTJUJPOٖه٦ز ˖ *OTUBMMFST 'SFFUSJBMJTUT FUDך嫰桦׾然钠〳腉 (SPXZPVSCVTJOFTT

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˖ 4VCTDSJQUJPOT%BTICPBSE ˖ 3FUFOUJPOٖه٦ز ˖ 醱侧فٓٝך飑铣竰竲桦׾然钠〳腉 (SPXZPVSCVTJOFTT

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˖ 4VCTDSJQUJPOT%BTICPBSE ˖ $IVSOٖه٦ز ˖ 傈嫣ך㹀劍飑铣׾鍑ꤐ׃׋➂侧׾然钠〳腉 (SPXZPVSCVTJOFTT

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3FGFSFODFT ˖ 8IBUT/FXJO(PPHMF1MBZ ˖ IUUQTHPPHM3Q& ˖ .BLF.PSF.POFZXJUI4VCTDSJQUJPOTPO(PPHMF1MBZ ˖ IUUQTHPPHMQVY-

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:VLJ4IJIP !TIJIPDIBO 5IBOLZPV 4FFZPVOFYU*0ˏ (PPHMF*0ؿ؍٦سغحؙ⠓JO