日本語プログラミングとSpring Bootアプリケーション開発 #kanjava

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ࢁຊϢʔεέ!ZVTVLF ೔ຊޠϓϩάϥϛϯάͱ 4QSJOH#PPUΞϓϦέʔγϣϯ։ൃ

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ࢁຊϢʔεέ!ZVTVLF w 044σϕϩού w ࣆ#VTJOFTT$BMFOEBS+5XJUUFS+ͳͲ w *OUFMMJ+*%&"԰͞Μ

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ࢁຊϢʔεέ!ZVTVLF w ஶॻ w ϓϩʹͳΔ+BWB w *OUFMMJ+*%&"ϋϯζΦϯ w 5XJUUFS"1*ϙέοτϦϑΝϨϯε

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೔ຊޠͰϓϩάϥϛϯά͍ͯ͠·͔͢ʁ

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೔ຊޠΛ࢖Θͳ͍ཧ༝ w ӳޠͰࠔ͍ͬͯͳ͍ w ίʔσΟϯά࣌ɺ೔ຊޠͱӳޠͷ੾Γସ͕͑໘౗ͦ͏ w จࣈԽ͚ͳͲͷτϥϒϧ͕ൃੜͦ͠͏

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ӳޠͰࠔ͍ͬͯͳ͍

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ӳޠͰࠔ͍ͬͯͳ͍ w தֶੜϨϕϧͷޠኮͰɺ͔֬ʹଟ͘ͷ৔໘ΛΧόʔՄೳ w HFU TFU HFOFSBUF VTFSͳͲ public @NotNull OrderForm generateOrderForm( @NotNull User user, @NotNull List items) { … } public @NotNull List findOrderFormBy( @NotNull User user) { … }

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ӳޠͰࠔ͍ͬͯͳ͍ w ϏδωευϝΠϯͷ༻ޠ͸ʁ public record CreditAccount(...) {} public enum JournalEntry { ConsumableSupplies, ExternalEntertainmentExpenses, } צఆՊ໨ ࢓༁ ফ໣඼අ ࣾ֎ܚீඅ

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ӳޠͰࠔ͍ͬͯͳ͍ w ாථछผΛද͢FOVNΛఆٛ͠·͠ΐ͏ w ݱࡏ͸੥ٻॻͱྖऩॻɺೲ඼ॻͷछผ͕͋Γ·͢ public enum FormCategory { Invoice, Receipt, DeliveryNotice }

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ӳޠͰࠔ͍ͬͯͳ͍ w ΠϯϘΠε੍ରԠͷ੥ٻॻͱɺඇରԠͷ੥ٻॻ΋ఆ͍ٛͯͩ͘͠͞ public enum FormCategory { InvoiceQualifiedInvoice, InvoiceUnqualifiedInvoice, Receipt, DeliveryNotice }

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ӳޠͰࠔ͍ͬͯͳ͍ w ྖऩॻͱϨγʔτͰϑΥʔϚοτΛม͑ΔͷͰɺͦΕͧΕ۠ผͰ͖ΔΑ͏ʹ public enum FormCategory { InvoiceQualifiedInvoice, InvoiceUnqualifiedInvoice, RyoshushoReceipt, ReceiptReceipt, DeliveryNotice } ʊਓਓਓਓਓਓਓਓਓਓਓਓਓʊ ʼɹ RyoshushoReceiptʂʂ ʻ ʉY^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^Y^ʉ

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ӳޠͰࠔ͍ͬͯͳ͍ w ೔ຊޠ͸͔ͳΒͣ͠΋ӳޠͷର༁͕͋ΔΘ͚Ͱ͸ͳ͍

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ӳޠͰࠔ͍ͬͯͳ͍ w ӳޠͰࠔ͍ͬͯͳ͍㲈ඞཁʹԠͯ͡ௐ΂Ε͹ӳޠͰίʔυ͸ॻ͚Δ w ӳޠͰࠔ͍ͬͯͳ͍㱠εϥεϥͱಡΈॻ͖͕ग़དྷΔ public record צఆՊ໨(...) {} public enum ࢓༁ { ফ໣඼අ, ࣾ֎ܚீඅ, } public record CreditAccount(...) {} public enum JournalEntry { ConsumableSupplies, ExternalEntertainmentExpenses, }

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೔ຊޠͱӳޠͷ੾Γସ͕͑໘౗ͦ͏

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೔ຊޠͱӳޠͷ੾Γସ͕͑໘౗ͦ͏ w ೔ຊޠӳޠ੾Γ׵͑ͷ࣌ؒ೔ຊޠ͔ΒӳޠΛࢥ͍ग़࣌ؒ͢ w ·ͱ΋ͳ*%&ɺΤσΟλΛ࢖͍ͬͯΔݶΓλΠϓྔ͸໰୊ͳ͍

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จࣈԽ͚ͳͲͷτϥϒϧ͕ൃੜͦ͠͏

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จࣈԽ͚ͳͲͷτϥϒϧ͕ൃੜͦ͠͏ +BWBͷΤϯίʔσΟϯά͸ʁ w +7.͸6OJDPEFͰจࣈΛѻ͏ͷͰ൒֯ӳ਺Ҏ֎ͷγϯϘϧ΋໰୊ͳ͘ѻ͑Δ w ϑΝΠϧΤϯίʔσΟϯάʹ͸஫ҙ w +BWB65' w +BWBγεςϜσϑΥϧτΤϯίʔσΟϯά w ϑΝΠϧΤϯίʔσΟϯά͸.BWFOɺ(SBEMFͰ໌ࣔతʹࢦఆ

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จࣈԽ͚ͳͲͷτϥϒϧ͕ൃੜͦ͠͏ ͦͷଞͷΤϯίʔσΟϯά w +7.಺Ͱ͸໰୊ͳ͍͕ɺ+7.͔Β֎ʹग़Δɺ֎͔Β+7.ʹೖΔ෦෼͸஫ҙ w ϑΝΠϧɺ%#ɺωοτϫʔΫͳͲ w 8FC͸΄΅65'͕σϑΥϧτʹͳΓͭͭ͋Δ w σʔλϕʔεͷΤϯίʔσΟϯά͸ݱ৔ʹΑΓ༷ʑ w ಛʹֆจࣈͷ֨ೲ͸ͲͷΤϯίʔσΟϯάͰ΋ཁ஫ҙ

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จࣈԽ͚ͳͲͷτϥϒϧ͕ൃੜͦ͠͏ ౓ͷ֬ೝίετ࡟ݮ ܧଓతͳ։ൃɺอकͷੜ࢈ੑ޲্ ͲͪΒ͕େࣄʁ

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೔ຊޠΛ࢖͏ϝϦοτ w ೔ຊޠωΠςΟϒʹಡΈ΍͍͢ɺॻ͖΍͍͢

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೔ຊޠΛ࢖͏ෆ҆ w ೔ຊޠඇωΠςΟϒʹಡΈʹ͍͘

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w ςετϝιου໊

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w ఆ਺ w ώϯτશ֯ʮ̌ʙ̕ʯ͸γϯϘϧͷઌ಄ʹ࢖͑ͳ͍͕ɺ׽਺ࣈ͸࢖͑Δ

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w υϝΠϯΫϥεɺσʔλΫϥε public record ిࢠॻ੶GiftCode( int Ωʔ, String sku, String Ϊϑτίʔυ, boolean ૹ෇ࡁ, String ாථίʔυ) { }

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w FOVN public enum Ϋʔϙϯద༻ཧ༝ { ద༻Մೳ, ଘࡏ͠ͳ͍Ϋʔϙϯίʔυ, ର৅ͷ੡඼͕ͳ͍, Ϋʔϙϯ༗ޮظݶ֎, ࢒Γຕ਺͕ͳ͍ } public enum ாථछผ { ੥ٻॻ, डྖॻ, ྖऩॻ, ฦۚ௨஌ॻ, ೲ඼ॻ, ೲ඼ॻ݉੥ٻॻ, ݟੵॻ, ӳޠೲ඼ॻ݉੥ٻॻ, ӳޠݟੵॻ, ஫จ੥ॻ, ൃ஫ॻ, ΫϦοΫϙετ } public enum आํצఆՊ໨ { อݥྉ, ௕ظआೖۚ, ചֻۚ, ॾձඅ, ࢓ೖߴ, ௨৴අ, ച্ߴ, ஍୅Ո௞, ࣾ֎ܚீඅ, ࢧ෷ख਺ྉ, ࢧ෷རଉ, ݱۚ,

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🚀೔ຊޠϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w ෳࡶͳ৚݅൑ఆ݁ՌΛ୅ೖ͢ΔCPPMFBOܕ w ίϝϯτͳ͠ʹॲཧ಺༰͕໌֬ʹͳΔ

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🚀೔ຊޠ🇯🇵ϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w ςʔϒϧ໊ɺΧϥϜ໊

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🚀೔ຊޠ🇯🇵ϓϩάϥϛϯά🧑💻ͷ࢖͍ॴ w ϚϧνόΠτจࣈΛ࢖͍ͬͯΔࢫͷܯࠂ͸ΠϯεϖΫγϣϯΛΦϑʹ

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೔ຊޠΛ࢖Θͳ͍ํ͕ྑ͍Օॴ

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೔ຊޠΛ࢖Θͳ͍ํ͕ྑ͍Օॴ w ؆୯ͳӳ୯ޠͰදͤΔ༻ޠ public enum EventType { ADDED, DELETED } ʮ؆୯ͳӳޠͷϨϕϧײʯ͸ϝϯόʔʹΑΔ

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೔ຊޠΛ࢖Θͳ͍ํ͕ྑ͍Օॴ w ม਺໊ CPPMFBOܕΛআ͘ Ϋϥε໊ͱม਺໊ͷ۠ผ͕͔ͭͳ͍

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ϑΥʔϜཁૉ໊ɺ5IZNFMFBGʹ౉͢஋ NPEFMBEE"UUSJCVUF λεΫϦετ UBTLT UJUMFUIUFYU\PSEFSாථίʔυ^UJUMF

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ϑΥʔϜཁૉ໊ɺ5IZNFMFBGʹ౉͢஋ NPEFMBEE"UUSJCVUF λεΫϦετ UBTLT UJUMFUIUFYU\PSEFSாථίʔυ^UJUMF ී௨ʹ࢖͑Δ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ϑΥʔϜཁૉ໊ɺ5IZNFMFBGʹ౉͢஋ NPEFMBEE"UUSJCVUF λεΫϦετ UBTLT UJUMFUIUFYU\PSEFSாථίʔυ^UJUMF ී௨ʹ࢖͑Δ ϦϑΝΫλϦϯάʹ੍໿͋Γ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w σʔλϕʔεςʔϒϧ໊ɺΧϥϜ໊

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w σʔλϕʔεςʔϒϧ໊ɺΧϥϜ໊ ී௨ʹ࢖͑Δ(ֆจࣈ஫ҙ)

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w %#ΞΫηεΫϥε w +1" w .Z#BUJT w %PNB

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w %#ΞΫηεΫϥε w +1" w .Z#BUJT w %PNB ී௨ʹ࢖͑Δ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w %#ΞΫηεΫϥε w +1" w .Z#BUJT w %PNB ී௨ʹ࢖͑Δ ී௨ʹ࢖͑Δ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w %#ΞΫηεΫϥε w +1" w .Z#BUJT w %PNB ී௨ʹ࢖͑Δ ී௨ʹ࢖͑Δ ී௨ʹ࢖͑Δ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ύε !(FU.BQQJOH ஫จৄࡉ\஫จJE^

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ύε !(FU.BQQJOH ஫จৄࡉ\஫จJE^ Spring Boot 3.2·Ͱ: ී௨ʹ࢖͑Δ

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4QSJOH#PPUΞϓϦέʔγϣϯͱ೔ຊޠ w ओͳ೔ຊޠΛ࢖͍ͨ͘ͳΔ৔ॴ w ύε !(FU.BQQJOH ஫จৄࡉ\஫จJE^ Spring Boot 3.2·Ͱ: ී௨ʹ࢖͑Δ Spring Boot 3.3Ҏ߱: ݱࡏͷॴ࢖͑ͳ͍

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ӳޠ͸ษڧ͠ͳͯ͘ྑ͘ͳͬͨʁ

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ӳޠ͸ษڧ͠ͳͯ͘ྑ͘ͳͬͨʁ w ͦΜͳ͜ͱ͸ͳ͍ w ػց຋༁͕ݡ͘ͳͬͯ΋ӳޠ͸ಡΈॻ͖Ͱ͖Δඞཁ͕͋Δ w "*͕ݡ͘ͳͬͯ΋ίʔυ͸ಡΈॻ͖Ͱ͖Δඞཁ͕͋Δ