diff --git a/em-oop/src/BasicCheck1.java b/em-oop/src/BasicCheck1.java
index f62f54e..74d4819 100644
--- a/em-oop/src/BasicCheck1.java
+++ b/em-oop/src/BasicCheck1.java
@@ -3,16 +3,23 @@ public class BasicCheck1 {
 
 	public static void main(String[] args) {
 		// TODO 自動生成されたメソッド・スタブ
-		Book book = new Book();
-		book.title = "吾輩は猫である";
-		book.author ="夏目漱石";
-		book.price = 800;
+		Book book1 = new Book();
+		book1.title = "タイトル未設定";
+		book1.author ="著者未設定";
+		book1.price = 0;
 		
-		System.out.println(book.title);
-		System.out.println(book.author);
-		System.out.println(book.price);
+		System.out.println(book1.title);
+		System.out.println(book1.author);
+		System.out.println(book1.price);
 		
+		Book book2 = new Book();
+		book2.title = "銀河鉄道の夜";
+		book2.author ="宮沢賢治";
+		book2.price = 500;
 		
+		System.out.println(book2.title);
+		System.out.println(book2.author);
+		System.out.println(book2.price);
 
 	
 	}
diff --git a/em-oop/src/Book.java b/em-oop/src/Book.java
index beb3c69..38687ad 100644
--- a/em-oop/src/Book.java
+++ b/em-oop/src/Book.java
@@ -3,5 +3,18 @@ public class Book {
 	String title;
 	String author;
 	int price;
+	
+	public Book() {
+		title = "タイトル未設定";
+		author = "著者未設定";
+		price = 0;
 
+	}	
+	
+	public Book(String title,String author,int price){
+		
+		this.title = title;
+		this.author = author;
+		this.price = price;
+	}
 }