diff --git a/em-oop/src/BasicCheck3.java b/em-oop/src/BasicCheck3.java
index 80c2b54..70e0985 100644
--- a/em-oop/src/BasicCheck3.java
+++ b/em-oop/src/BasicCheck3.java
@@ -23,6 +23,11 @@ public class BasicCheck3 {
 		items[2].stock = 100;
 		
 		
+		
+		
+		
+		
+		
 		for(int i = 0; i <= 2; i++ )
 		{
 			items[i].sell(5);
diff --git a/em-oop/src/Circle.java b/em-oop/src/Circle.java
new file mode 100644
index 0000000..b949cb9
--- /dev/null
+++ b/em-oop/src/Circle.java
@@ -0,0 +1,21 @@
+
+public class Circle extends Shape { //shapeクラスを継承する
+	private double radius; { //radius: 半径  フィールドradius (double型、private)
+           
+	}
+	
+	public Circle(double radius) { //コンストラクタpub 引数dou/raを受け取る
+		super("円");               //"円"呼び出し 文字列
+		this.radius = radius;      //radiusフィールドにも引数の値を代入する。
+		
+	}
+	public  double area() {                     //Overrideは 子クラスで！
+		return  Math.PI * radius * radius;
+	}
+    public void showInfo(){
+    	super.showInfo();
+		System.out.println("(半径:" + this.radius + ")");
+	}
+	
+
+}
diff --git a/em-oop/src/Day3Check1.java b/em-oop/src/Day3Check1.java
new file mode 100644
index 0000000..253263b
--- /dev/null
+++ b/em-oop/src/Day3Check1.java
@@ -0,0 +1,11 @@
+
+public class Day3Check1 {
+
+	public static void main(String[] args) {
+	
+		Circle circle = new Circle(2);
+		circle.area();
+		circle.showInfo();
+		
+	}
+}
diff --git a/em-oop/src/Item.java b/em-oop/src/Item.java
index a31aca4..d710c22 100644
--- a/em-oop/src/Item.java
+++ b/em-oop/src/Item.java
@@ -1,9 +1,31 @@
 
 public class Item {
 	//フィールドを宣言
-	String name;
-	int price;
-	int stock;
+	private String name;
+	private int price;
+	private int stock;
+	
+	public String getName() {
+		return this.name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	
+	public int getPrice() {
+		return this.price;
+	}
+	public void getPrice(String name) {
+		this.price = price;
+	}
+	
+	public int getStock() {
+		return this.stock;
+	}
+	public void setStock() {
+		this.stock = stock;
+	}
+	
 	
 //	Item(String name, int price, int stock){
 //		this.name = name;
@@ -15,7 +37,7 @@ public class Item {
 		//メソッドを宣言
 		
 		//stockからamountを引く
-	    this.stock = this.stock - amount;
+	    this.getStock(this.getStock() - amount);
 	}
 
 }
diff --git a/em-oop/src/Shape.java b/em-oop/src/Shape.java
new file mode 100644
index 0000000..790e1bd
--- /dev/null
+++ b/em-oop/src/Shape.java
@@ -0,0 +1,34 @@
+
+public class Shape {
+	
+	private String name; //フィールドname ・privateにしなきゃいけない
+	public double area;
+	public int radius;
+	
+	public Shape() {		
+	}
+	
+	public Shape(String name) {
+		this.name = name; //Circleが"円"を呼び出すための文字列をいれるところ
+	}
+	
+	public  double area() {  //メソッドarea 引数なし・戻り値double 中身return0.0;
+		return 0.0;
+	}
+	
+//	@Override
+
+	
+	public void showInfo(){ //メソッドshowinfo 引数戻り値なし・中身はsyso
+		System.out.println(this.name + "の面積は" + this.area() + "です");
+	    System.out.println("(半径:" + this.radius + ")");
+	}
+	
+//	@Override
+//	public void showInfo(){
+//		
+//	}
+	
+	
+
+}