2段階目（Itemクラスをカプセル化し、toStringをオーバーライドしよう）

em-oop/src/BasicCheck3.java

@@ -7,19 +7,19 @@ public class BasicCheck3 {
 		for (int i = 0; i < items.length; i++) {
 			items[i] = new Item();
 		}
-		items[0].name = "ノート";
-		items[0].price = 120;
-		items[0].stock = 50;
-		items[1].name = "消しゴム";
-		items[1].price = 80;
-		items[1].stock = 30;
-		items[2].name = "鉛筆";
-		items[2].price = 60;
-		items[2].stock = 100;
+		items[0].setName("ノート");
+		items[0].setPrice(120);
+		items[0].setStock(50);
+		items[1].setName("消しゴム");
+		items[1].setPrice(80);
+		items[1].setStock(30);
+		items[2].setName("鉛筆");
+		items[2].setPrice(60);
+		items[2].setStock(100);
 
 		for (Item i : items) {
 			i.sell(5);
-			System.out.println(i.name + " " + i.price + "円　残り" + i.stock + "個　合計金額" + i.totalPrice() + "円");
+			System.out.println(i);
 		}
 	}
 

em-oop/src/Item.java

@@ -1,14 +1,43 @@
 
 public class Item {
-	String name;
-	int price;
-	int stock;
+	private String name;
+	private int price;
+	private int stock;
 
 	void sell(int amount) {
-		this.stock -= amount;
+		this.setStock(this.getStock() - amount);
+	}
+
+	@Override
+	public String toString() {
+		return this.getName() + "　" + this.getPrice() + "円（残り" + this.getStock() + "個）";
 	}
 
 	int totalPrice() {
 		return this.price * this.stock;
 	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getPrice() {
+		return price;
+	}
+
+	public void setPrice(int price) {
+		this.price = price;
+	}
+
+	public int getStock() {
+		return stock;
+	}
+
+	public void setStock(int stock) {
+		this.stock = stock;
+	}
 }