最新JavaとIDE #jjug

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1. ࠷৽+BWBͱ*%& @yusuke ࢁຊϢʔεέ
2. w5XJUUFS
   "1*
   +BWBϥού
   5XJUUFS+
   wεϨουμϯϓղੳπʔϧ
   ࣆ ࢁຊϢʔεέ
3. -*/&Φʔϓϯνϟοτ
   +BWB
4. wגࣜձࣾαϜϥΠζϜ୅ද
   ։ൃऀ޲͚ͷπʔϧͷൢച΍Մೳ
   +FU#SBJOTͷ૯୅ཧళ
   $*࿈ܞπʔϧ🌀$*DMPOFͷ։ൃ ࢁຊϢʔεέ
5. +FU#SBJOT
   
   *OUFMMJ+
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   +BWB
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6. ೪Γڧ͍+BWB
   ਓؾ 1FSGPSDF
   
   
   +BWB
   %FWFMPQFS
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7. +BWB
   ɺಋೖ͠·ͨ͠
8. +BWB
   ͔Β΁Ҡߦͯ͠͏Ε͍͜͠ͱ
9. wಛʹແ͠ +BWB
   ͔Β΁Ҡߦͯ͠͏Ε͍͜͠ͱ
10. ࠷৽+BWB΁ͷҠߦॱ +BWB
     +BWB
     +BWB
     +BWB
     +BWB
    Ҏલ 㾎 +BWB
    ʙ 㾎 +BWB
     㾎 +BWB
     㾎
11. Switch Expressions TXJUDIΛࣜͱͯ͠දݱՄೳ Text Blocks ݁߹ͳ͠ʹෳ਺ߦςΩετΛදݱ Pattern Matching for instanceof JOTUBODFPG࣌ͷΩϟετ͕ෆཁ Records ΠϛϡʔλϒϧͳΫϥεΛγϯϓϧʹهड़ Virtual Threads ܰྔͳεϨου +BWB
    ·Ͱͷओͳݴޠػೳͷ·ͱΊ
12. +%,Ξοϓσʔτͷεςοϓ ςετ࣮ߦ ςετ੔උ मਖ਼ +%,Ξοϓσʔτ ςετ࣮ߦ मਖ਼ ίʔυվળ ςετ࣮ߦ मਖ਼
13. .BWFOϓϩδΣΫτͷ+BWB
    Ҡߦ CVJME
    
    
    
    
    QMVHJOT
    
    
    
    
    
    
    
    
    QMVHJO
    
    
    
    
    
    
    
    
    
    
    
    
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    DPO fi HVSBUJPO
    
    
    
    
    
    
    
    
    QMVHJO
    
    
    
    
    QMVHJOT
    CVJME QSPQFSUJFT
    
    
    
    
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    QSPKFDUCVJMETPVSDF&ODPEJOH65'QSPKFDUCVJMETPVSDF&ODPEJOH
    QSPQFSUJFT Java 20Λ༗ޮʹͯ͠Ϗϧυ ϓϨϏϡʔػೳΛ༗ޮʹͯ͠Ϗϧυ
14. (SBEMFϓϩδΣΫτͷ+BWB
    Ҡߦ DPNQJMF+BWB\
    
    
    
    
    PQUJPOTDPNQJMFS"SHT
    
    <FOBCMFQSFWJFX>
    ^
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    <FOBCMFQSFWJFX>
    ^
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    KWN"SHT
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    VTF+6OJU1MBUGPSN
    ^ KBWB
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    MBOHVBHF7FSTJPO
    
    +BWB-BOHVBHF7FSTJPOPG 
    
    
    
    
    ^
    ^ Java 20Λ༗ޮʹͯ͠Ϗϧυ ϓϨϏϡʔػೳΛ༗ޮʹͯ͠Ϗϧυ
15. ઃఆ > Build, Execution, Deployment > Build Tools > Gradle Gradle JVMΛJava 19·ͨ͸ͦΕҎલʹઃఆ
16. σϞΞϓϦέʔγϣϯͷઆ໌
17. w0QU
    
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    *%&"ͷΫΠοΫϑΟοΫε
18. w*OTQFDU
    $PEFʜ ίʔυͷ੩తղੳ
19. wϒϨʔΫϙΠϯτͰఀࢭ
    wʮͦͷεϨου͚ͩఀࢭʯ΋Մೳ εϨου໰୊ͷσόοάجຊ
20. wεϨουμϯϓ
    w֤εϨου͕ʮࠓԿΛ͍ͯ͠Δ͔ʯΛऔಘ εϨου໰୊ͷσόοάجຊ
21. wੜ࢈ੑ͕ߴ͍+BWB
    
    w࣍ͷ+BWB
    ͸-54 ·ͱΊ
22. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠