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はじめようきれいなコード
きりみん
June 01, 2018
Programming
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2.8k
はじめようきれいなコード
きりみん
June 01, 2018
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Transcript
͡ΊΑ͏ ͖Ε͍ͳίʔυ @kirimin
Α͘ʮྑ͍ίʔυʯͱ͔ ʮ͖Ε͍ͳίʔυʯͱ͔͍͏ ݴ༿ΛݟΔ͚Ͳ
ಉ͡ॲཧΛ͢ΔϓϩάϥϜʹ ͦΜͳҧ͍ͳΜͯ͋Δͷ͔ͳʁ
͋ΔΑ
͖Ε͍ͳίʔυͷఆٛ ͖Ε͍ͳσʔλઃܭ ͖Ε͍ͳΞʔΩςΫνϟઃܭ ͖Ε͍ͳΫϥεઃܭ ͖Ε͍ͳؔ ͖Ε͍ͳॲཧ
͖Ε͍ͳίʔυͷఆٛ ͖Ε͍ͳσʔλઃܭ ͖Ε͍ͳΞʔΩςΫνϟઃܭ ͖Ε͍ͳΫϥεઃܭ ͖Ε͍ͳؔ ͖Ε͍ͳॲཧ ࠓͷςʔϚ
͖Ε͍ͳॲཧ
ྫ w -JTUͷத͕B C DͷॱʹฒΜͰ͍Δ͔Λ ௐΔɻ w ਖ਼͚͠ΕʮTVDDFTTʯɺҧ͍ͬͯΕ ʮ'BJMFEʯͱग़ྗ͢Δɻ
ྫ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (list.isEmpty()) { flag = false; } else { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
w Πϯσϯτ͕ਂ͍ w ఆॲཧ͕ແବʹΘ͔Γʹ͍͘ w ม໊͕Θ͔Γʹ͍͘
վળͰ͖Δ͔ͳʁ
ྫ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (list.isEmpty()) { flag = false; } else { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
FMTFʹॲཧ͕ͨ͘͞Μ͋Δ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (list.isEmpty()) { flag = false; } else { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ఆΛٯʹ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty()) { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ಉ͡ྲྀΕͳͷʹผʑʹఆͯ͠Δ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty()) { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ఆΛͰ·ͱΊΔ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty()) { if (list.get(0).equals("a")) { if (list.size() > 2 && list.get(1).equals("b")) { if (list.size() > 3 && list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
࠷ॳͷํಉ͡ఆͰΑͦ͞͏ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty()) { if (list.get(0).equals("a")) { if (list.size() > 2 && list.get(1).equals("b")) { if (list.size() > 3 && list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
̏ͭͷఆʹ̏ͭͷJGจ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty() && list.get(0).equals("a")) { if (list.size() > 2 && list.get(1).equals("b")) { if (list.size() > 3 && list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
Ͱ͜ͷఆ͔͢͜͠Γʹ͍͘ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (!list.isEmpty() && list.get(0).equals("a")) { if (list.size() > 2 && list.get(1).equals("b")) { if (list.size() > 3 && list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
มʹΓग़໊ͯ͠લΛ͚ͭͨ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") if (isFirstA) { if (isSecondB) { if (isThirdC) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
࣮ͦͦ͜ͷJGจ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") if (isFirstA) { if (isSecondB) { if (isThirdC) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
͍Βͳ͍ΜͩΑͶ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean flag = isFirstA && isSecondB && isThirdC; if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
CPPMFBOΛͰఆͯ͠Δ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean flag = isFirstA && isSecondB && isThirdC; if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ͳͷͰ GMBH Ͱ͍͍ public static void main(String[] args) { List<String>
list = new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean flag = isFirstA && isSecondB && isThirdC; if (flag) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ͦͦ͜ͷGMBH໊ͬͯલ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean flag = isFirstA && isSecondB && isThirdC; if (flag) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
ҙຯͷΘ͔Δ໊લΛ͚ͭΑ͏ public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean isABC = isFirstA && isSecondB && isThirdC; if (isABC) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
Έ͘ΒΔ
CFGPSF public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean flag; if (list.isEmpty()) { flag = false; } else { if (list.get(0).equals("a")) { if (list.size() > 2) { if (list.get(1).equals("b")) { if (list.size() > 3) { if (list.get(2).equals("c")) { flag = true; } else { flag = false; } } else { flag = false; } } else { flag = false; } } else { flag = false; } } flag = false; } if (flag == true) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
BGUFS public static void main(String[] args) { List<String> list =
new ArrayList<>(); list.add("a"); list.add("b"); list.add("c"); boolean isFirstA = !list.isEmpty() && list.get(0).equals("a") boolean isSecondB = !list.isEmpty() && list.get(1).equals("b") boolean isThirdC = !list.isEmpty() && list.get(2).equals("c") boolean isABC = isFirstA && isSecondB && isThirdC; if (isABC) { System.out.println("Success!!!"); } else { System.out.println("Failed!!!"); } }
݁Ռ͔Θͬͯͳ͍͚Ͳ ͘͢͝Θ͔Γ͘͢ͳͬͨ
Θ͔Γ͍͢ ʹ มߋ͍͢͠ όάΛ࡞Γʹ͍͘ ͘ॻ͚Δ
͔͍͍ͬ͜ϓϩάϥϚ ʹ ͦ͠͏ͳίʔυΛॻ͘ʁ
͔͍͍ͬ͜ϓϩάϥϚ ʹ Θ͔Γ͍͢ίʔυΛॻ͘ʂ
Θ͔Γ͍͢ίʔυΛॻ͜͏ʂ