回答編集履歴
2
文字列比較はequals
test
CHANGED
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@@ -45,3 +45,49 @@
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45
45
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}
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46
46
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47
47
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```
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48
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+
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49
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50
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51
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---
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52
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53
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54
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55
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Stringの比較にはequalsを使います。今のままs.equals()を使うとNullPointerExceptionになるので、処理手順を変えます。
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56
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57
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```java
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58
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59
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public static void main(String[] arg) {
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60
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61
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Scanner sc = new Scanner(System.in);
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62
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63
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List<Figure> l = new ArrayList<Figure>();
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64
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65
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String s;
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66
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67
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68
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69
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while ((s = sc.next()).equals("end")) {
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70
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71
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if (s.equals("c")) {
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72
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73
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double r = sc.nextDouble();
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74
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75
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l.add(new Circle(r));
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76
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77
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} else if (s.equals("r")) {
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78
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79
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double width = sc.nextDouble();
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80
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81
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double height = sc.nextDouble();
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82
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83
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l.add(new Rectangle(width, height));
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84
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85
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}
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86
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87
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}
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88
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89
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System.out.println(max(l));
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90
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91
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}
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92
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93
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```
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1
return間違い
test
CHANGED
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@@ -40,7 +40,7 @@
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40
40
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41
41
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}
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42
42
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43
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-
return
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43
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+
return ret;
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44
44
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45
45
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}
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46
46
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