10/14 開発課題

BasicCheck1.java

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+package misson1014;
+
+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;
+
+        System.out.println(book.title);
+        System.out.println(book.author);
+        System.out.println(book.price);
+    }
+}

BasicCheck2.java

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+package misson1014;
+
+public class BasicCheck2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        Student student = new Student();
+
+        student.studentId = 1;
+        student.name = "鈴木一郎";
+
+        student.printProfile();
+    }
+}

BasicCheck3.java

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+package misson1014;
+
+public class BasicCheck3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+        Item[] items = new Item[3];
+
+        items[0] = new Item();
+        items[1] = new Item();
+        items[2] = 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;
+
+        // 5個販売
+        for (int i = 0; i < items.length; i++) {
+            items[i].sell(5);
+        }
+
+        // 商品情報を表示
+        for (int i = 0; i < items.length; i++) {
+            System.out.println(
+                items[i].name + " "
+                + items[i].price + "円 "
+                + "残り" + items[i].stock + "個"
+            );
+        }
+
+        // 合計金額を計算
+        int total = 0;
+
+        for (int i = 0; i < items.length; i++) {
+            total += items[i].totalPrice();
+        }
+
+        System.out.println("合計金額：" + total + "円");
+    }
+}

Book.java

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+package misson1014;
+
+public class Book {
+	String title;
+	String author;
+	int price;
+}

EmployeeData.java

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+package misson1014;
+
+public class EmployeeData {
+	//社員ID
+	String idEmployee;
+	//社員名
+	String nmEmployee;
+	//カナ
+	String knEmployee;
+	//メールアドレス
+	String mailAddress;
+	//PW
+	String password;
+	//部署ID
+	String idDepartment;
+
+
+	//まとめて表示
+	void showInfo() {
+
+		System.out.println(
+				this.idEmployee + "\t"
+						+ this.nmEmployee + "\t"
+						+ this.knEmployee + "\t"
+						+ this.mailAddress + "\t"
+						+ this.password + "\t"
+						+ this.idDepartment);
+	}
+	//IDチェック
+	boolean isMatchId(String id) {
+
+		if (this.idEmployee.equals(id)) {
+			return true;
+		} else {
+			return false;
+		}
+
+	}
+}

Item.java

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+package misson1014;
+
+public class Item {
+    String name;
+    int price;
+    int stock;
+
+    void sell(int amount) {
+        this.stock = this.stock - amount;
+    }
+
+    int totalPrice() {
+        return this.price * this.stock;
+    }
+}

Main.java

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+package misson1014;
+import java.util.Scanner;
+
+public class Main {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		// 5人の配列を作成
+        EmployeeData[] employees = new EmployeeData[5];
+
+        // インスタンス生成
+        employees[0] = new EmployeeData();
+        employees[1] = new EmployeeData();
+        employees[2] = new EmployeeData();
+        employees[3] = new EmployeeData();
+        employees[4] = new EmployeeData();
+
+        employees[0].idEmployee = "10000";
+        employees[0].nmEmployee = "山田龍也";
+        employees[0].knEmployee = "ヤマダタツヤ";
+        employees[0].mailAddress = "yamada@hoge.jp";
+        employees[0].password = "aaa";
+        employees[0].idDepartment = "10";
+
+        employees[1].idEmployee = "10001";
+        employees[1].nmEmployee = "高橋準";
+        employees[1].knEmployee = "タカハシジュン";
+        employees[1].mailAddress = "jtaka@hoge.jp";
+        employees[1].password = "bbb";
+        employees[1].idDepartment = "10";
+
+        employees[2].idEmployee = "10002";
+        employees[2].nmEmployee = "麻枝史明";
+        employees[2].knEmployee = "マエダフミアキ";
+        employees[2].mailAddress = "fmak@hoge.jp";
+        employees[2].password = "ccc";
+        employees[2].idDepartment = "11";
+
+        employees[3].idEmployee = "10003";
+        employees[3].nmEmployee = "丸戸章介";
+        employees[3].knEmployee = "マルトショウスケ";
+        employees[3].mailAddress = "marusyo@hoge.jp";
+        employees[3].password = "ddd";
+        employees[3].idDepartment = "12";
+
+        employees[4].idEmployee = "10004";
+        employees[4].nmEmployee = "三宅武";
+        employees[4].knEmployee = "ミヤケタケシ";
+        employees[4].mailAddress = "miya@hoge.jp";
+        employees[4].password = "eee";
+        employees[4].idDepartment = "13";
+
+        Scanner scanner = new Scanner(System.in);
+
+        //0までループ
+        while (true) {
+
+            //ID検索
+            System.out.println("検索したい社員IDを入力してください（終了する場合は0）");
+            String search = scanner.nextLine();
+
+            //0なら終了
+            if (search.equals("0")) {
+                System.out.println("システムを終了します");
+
+                break;
+            }
+            //見つかったかどうか
+            boolean found = false;
+
+            //内部検索
+            for (int i = 0; i < employees.length; i++) {
+
+                // ID判定
+                if (employees[i].isMatchId(search)) {
+                    employees[i].showInfo();
+                    found = true;
+                    break;
+                }
+            }
+            // 見つからなかった
+            if (!found) {
+
+                System.out.println("該当する社員が見つかりませんでした");
+            }
+        }
+        scanner.close();
+    }
+}

Student.java

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+package misson1014;
+
+public class Student {
+    int studentId;
+    String name;
+
+    void printProfile() {
+        System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
+    }
+}