diff --git a/em-oop/src/Day3Check3.java b/em-oop/src/Day3Check3.java
new file mode 100644
index 0000000..4efc578
--- /dev/null
+++ b/em-oop/src/Day3Check3.java
@@ -0,0 +1,17 @@
+
+public class Day3Check3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		
+		//Shape型の変数shapeにradius引数2のCircle代入
+		Shape shape1 = new Circle(2);
+		shape1.showInfo();
+		
+		//Shape型の変数2に引数(widthが3、heightが4)を代入する
+		Shape shape2 = new Rectangle(3, 4);
+		shape2.showInfo();
+
+	}
+
+}