筋肉kt.pdf

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   ঘޗ Copyright © ZOZO Technologies, Inc.

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   ݱࡏ$IBUػೳΛ࣮૷͍ͯ͠·͢ʂ

5. Copyright © ZOZO Technologies, Inc. All Right Reserved. ,PUMJO
   1B[[MFSTͱ͸ʁ Kotlin

   ConfͰൃද͞ΕͨʮKotlinΫΠζʯΈ͍ͨͳ΋ͷ https://www.youtube.com/watch?v=Xq9vBZs0j-8

6. Copyright © ZOZO Technologies, Inc. All Right Reserved. ,PUMJO
   1B[[MFSTͱ͸ʁ ιʔείʔυͱղઆ͸ԼهͷϦϙδτϦʹ͋Δ

   https://github.com/angryziber/kotlin-puzzlers

7. Copyright © ZOZO Technologies, Inc. All Right Reserved. ͬͦ͘͞໰୊ߦͧ͘ʂʂʂ Έͳ͞Μ΋Ұॹʹߟ͑ͯΈ·͠ΐ͏ʂ

8. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̍໰

9. Copyright © ZOZO Technologies, Inc. All Right Reserved. wB
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11. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̍໰
    ղઆ ਖ਼ղ͸

    d) Will not compile a -> A ɺ b -> Bɺ c -> bar ͱͨ͠ͱ͖ʹɺ foo(bar<A, B> b)

12. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̍໰
    ղઆ ਖ਼ղ͸

    d) Will not compile a -> A ɺ b -> Bɺ c -> bar ͱͨ͠ͱ͖ʹɺ foo(bar<A, B> b) ͻͱͭͷFunction(ؔ਺)ͱͯ͠ධՁ͞ΕΔ

13. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̍໰
    ղઆ ίϯύΠϧΛ௨͢ʹ͸

    foo((c < a), b > d)

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15. Copyright © ZOZO Technologies, Inc. All Right Reserved. wB
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16. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̎໰
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17. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ̎໰
    ղઆ nameͱ͍͏ม਺ʹσʔλ͕ೖΔલʹɺ

    logo͕ධՁ͞ΕΔ͔Βɻ KotlinΫϥεΛ Object Kotlin ʹ͢Δͱಈ͘ ਖ਼ղ͸ b) NullPointerException

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19. Copyright © ZOZO Technologies, Inc. All Right Reserved. wB
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21. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ໰
    ղઆ ɾprintln

    ͸ݺͼग़͞Εͨॠؒग़ྗ͞ΕΔ ɾVoid ϝιου͸ Unit Λฦ͢ ɾUnit ͸ γϯάϧτϯͰɺ౳͍͠ͱ൑ఆ͞ΕΔ ɾҰ൪֎ͷ print ͕࣮ߦ͞ΕΔલʹ return false͞ΕΔ ਖ਼ղ͸ a) HelloWorld

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23. Copyright © ZOZO Technologies, Inc. All Right Reserved. wB
    
    

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    ղઆ ઌʹ੺ͷ৭͕ධՁ͞ΕΔɻ

    val sum = x?:0 + y ਖ਼ղ͸ c)2

26. Copyright © ZOZO Technologies, Inc. All Right Reserved. ୈ໰
    ղઆ ઌʹ੺ͷ৭͕ධՁ͞ΕΔɻ

    val sum = x?:0 + y ܭࢉॲཧͨ݁͠ՌΛnull͔Ͳ͏͔൑ఆ͢Δ(ΤϧϏεԋࢉࢠ) val sum = x?: 3

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