2日目_段階1_完了
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@@ -1,7 +1,24 @@
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public class Book {
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String title;
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String author;
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int price;
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public String title;
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public String author;
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public int price;
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//引数なしコンストラクタ
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public Book() {
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this.title = "タイトル未設定";
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this.author = "著者未設定";
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this.price = 0;
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// System.out.println("コンストラクタが呼び出されました");
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}
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//引数ありコンストラクタ
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public Book(String title, String author, int price) {
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// System.out.println("引数なしのコンストラクタが呼び出されました");
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this.title = title;
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this.author = author;
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this.price = price;
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}
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}
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