diff --git a/em-oop/src/BasicCheck1.java b/em-oop/src/BasicCheck1.java
index edb41c8..c1b9c30 100644
--- a/em-oop/src/BasicCheck1.java
+++ b/em-oop/src/BasicCheck1.java
@@ -3,13 +3,15 @@ public class BasicCheck1 {
 
 	public static void main(String[] args) {
 
-		Book book = new Book();
-		String title = "吾輩は猫である";
-		String author = "夏目礎石";
-		int price = 800;
-		System.out.println(title);
-		System.out.println(author);
-		System.out.println(price);
+		Book book1 = new Book();
+		Book book2 = new Book("銀河鉄道の夜", "宮沢賢治", 500);
+		
+		
+		System.out.println(book1.title + "\n" + book1.author + "\n" + book1.price);
+		System.out.println(book2.title + "\n" + book2.author + "\n" + book2.price);
+		
+			
+		
 
 	}
 
diff --git a/em-oop/src/Book.java b/em-oop/src/Book.java
index 3cacf9e..101a1d3 100644
--- a/em-oop/src/Book.java
+++ b/em-oop/src/Book.java
@@ -1,8 +1,25 @@
 
 public class Book {
+	
+	
 	String title;
-	String author;
+	String author ;
 	int price;
+	
+	public Book() {
+		this.title = "タイトル未設定";
+		this.author = "著者未設定";
+		this.price = 0;
+		
+	}
+	
+	public Book(String title, String author, int price){
+		this.title = title;
+		this.author = author;
+		this.price = price;
+		
+	}
+	
 
 
 }