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あなたとKotlin, 今すぐはじめよう - UNTIL.LT #0x02
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ちゅるり
June 02, 2023
Programming
0
220
あなたとKotlin, 今すぐはじめよう - UNTIL.LT #0x02
2023年6月1日(木)に行われたUNTIL.LT #0x02の登壇資料です。
ちゅるり
June 02, 2023
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Transcript
͋ͳͨͱ,PUMJO ࠓ͙͢͡ΊΑ ͏ 無料 Kotlin のダウンロード 6/5*--5Y !DIVSVSJ@
ࣗݾհ ͪΎΔΓʢ!DIVSVSJ@ʣ • ใϝσΟΞֶྨ • ૯߹ֶҬ܈ୈ ྨग़ •
શձ ใॲཧਪਐಛผҕһձ • ֶ࣮ҕ ใϝσΟΞγεςϜہʢKTZTʣ
͍͍ͧ
,PUMJOͱ • l͜ͱΓΜzͱಡΈ·͢ɻ͔Θ͍͍Ͷɻ • εΠεͷ +FU#SBJOT ͕ࣾ։ൃ • 00-
Ͱ͋Δ͕ؔܕϓϩάϥϛϯάݴޠͷଆ໘ • )FMMP 8PSME fun main() { println("Hello, World!") } ͍ʂ
ଟ༷ͳίϯύΠϧλʔήοτ • ,PUMJO+7.ʢ+7.ͱͷ૬ޓӡ༻˕ʣ • ,PUMJO+4ʢ+BWB4DSJQUʣ • ,PUMJO8BTNʢ8FC"TTFNCMZʣ • ,PUMJO/BUJWF
• J04 • "OESPJE • 8JOEPXT • -JOVYʜ ࠷ۙެ։ʂ
+BWBͱͷ૬ޓӡ༻ •+BWBͱ૬ޓʹݺͼग़͢͜ͱ͕Մೳʂ • +BWB ϓϩδΣΫτͷҰ෦ͷΈΛ ,PUMJOͰॻ͚Δʂ +BWB Λͣͭ͢͜͠ ,PUMJOͰϦϓϨΠεՄೳʂ
無料 Kotlin のダウンロード
ΤϨΨϯτͳߏจͱڧྗͳݴޠػೳ val name = when(student) { is MastStudent ->
"mast" is CoinsStudent -> "coins" else -> "other" } XIFOࣜͱ JTԋࢉࢠ val immutable = "immutable" var mutable = "mutable" ໌ࣔతͳ࠶ೖՄೳੑ var nullable: String? = null σϑΥϧτͰ OVMMඇڐ༰ ӳจ๏ʹଇͨ͠ ߏจʂ +BWBʹͳ͍ʂ OVMM҆શʂ
ΤϨΨϯτͳߏจͱڧྗͳݴޠػೳ fun abc(func: (x: Int) -> Unit) { func(10)
} abc { println(it - 10) // 0 println(it + 20) // 30 } লུՄೳͳ ͱ JUมɺQSJOUMO • ԋࢉࢠ Φʔόʔϩʔυ • ֦ுؔ • ίϧʔνϯ ؔΛ ͚ͭͩ ҾʹͱΔؔ
ڧྗͳΤσΟλɿ*OUFMM+ *%&" • ,PUMJOͷ։ൃݩʹΑΔΤσΟλʢ*%&ʣ • (JU)VC$PQJMPU Λ͙྇ίʔυೖྗࢧԉ • ڧྗͳิͱϦϑΝΫλϦϯά
• Α͘͏ߏจͷΤΠϦΞεʹΑΔೖྗ • ॏෳίʔυͷݕग़
Λ͠Α͏