31 Commits

Author SHA1 Message Date
e5d3b79165 配列をArrayListに変更 2026-09-24 15:37:47 +09:00
af0016324b 検索機能を追加 2026-09-24 14:15:39 +09:00
127a193893 3日目 段階9 小澤 2026-09-24 11:07:34 +09:00
c363ae5533 3日目 段階8 小澤 2026-09-18 16:16:39 +09:00
1fd40c52ee 3日目 段階7 小澤 2026-09-18 16:01:35 +09:00
21a7aad1c6 3日目 段階6 小澤 2026-09-18 15:18:39 +09:00
2cb8629993 3日目 段階5 小澤 2026-09-18 14:45:00 +09:00
7ebf5dec70 3日目 段階4 小澤 2026-09-18 14:33:17 +09:00
a1b84b16f1 1日目 9段階目 小澤 2026-09-18 13:27:23 +09:00
c49e595ba5 1日目 段階8 小澤 2026-09-18 13:07:29 +09:00
21c95b996f 1日目 段階7 Main.java修正ver 小澤 2026-09-18 11:18:57 +09:00
01b822366e 1日目 段階7 小澤 2026-09-18 11:13:09 +09:00
59db1dbf9b 3日目 段階3 小澤 2026-09-16 15:17:45 +09:00
3af0830d41 3日目 段階2 小澤 2026-09-16 15:11:08 +09:00
f1ffaf5116 3日目 段階1 小澤 2026-09-16 14:57:08 +09:00
bd691238e7 2日目 コミットしてなかった分 2026-09-16 14:56:47 +09:00
cbbfae71fb 2日目 段階8 小澤 2026-09-15 16:37:48 +09:00
0366ab5ac7 2日目 段階7(余裕がある人向けも) 小澤 2026-09-15 15:58:39 +09:00
e0c36acb0d 2日目 段階6 小澤 2026-09-15 15:44:07 +09:00
bb15d0a2c6 2日目 段階5 小澤 2026-09-15 15:28:56 +09:00
1abebc37e0 2日目 段階3 小澤 2026-09-15 15:28:32 +09:00
a3ddbaed43 2日目 段階2 小澤 2026-09-15 14:02:17 +09:00
992bd30434 2日目 段階1 小澤 2026-09-15 13:18:13 +09:00
bbf7ac5628 1日目 段階6 小澤 2026-09-15 13:05:54 +09:00
9e5eb3c7c5 0914 段階5 小澤 2026-09-14 16:41:08 +09:00
e36f1ceb03 0914 段階4 小澤 2026-09-14 16:30:29 +09:00
ffe4c91806 0914 段階3 <余裕がある人向け>を追加 2026-09-14 16:22:39 +09:00
1b2d0829d1 0914 段階3 小澤 2026-09-14 16:07:03 +09:00
28076595d2 0914 段階2 2026-09-14 15:09:56 +09:00
bb6a9dba94 0914 段階1 2026-09-14 15:02:02 +09:00
8350370dbd 0914 2026-09-14 14:48:29 +09:00
26 changed files with 482 additions and 592 deletions

View File

@@ -1,8 +1,8 @@
public abstract class BaseData { //”abstract”classと宣言。 public abstract class BaseData {
public abstract String toString();
public abstract String toString(); //以下3つの抽象メソッドを宣言 中身無し
public abstract String toCSV(); public abstract String toCSV();
public abstract String getPrimaryKeyValue(); public abstract String getPrimaryKeyValue();
} }

View File

@@ -3,23 +3,21 @@ public class BasicCheck1 {
public static void main(String[] args) { public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ // TODO 自動生成されたメソッド・スタブ
// Book book = new Book(); Book book1 = new Book();
Book book2 = new Book("銀河鉄道の夜","宮沢賢治",500);
// book.title = "吾輩は猫である"; // book.title = "吾輩は猫である";
// book.author = "夏目漱石"; // book.author = "夏目漱石";
// book.price = 800; // book.price = 800;
Book book1 = new Book();
System.out.println(book1.title); System.out.println(book1.title);
System.out.println(book1.author); System.out.println(book1.author);
System.out.println(book1.price); System.out.println(book1.price);
Book book2 = new Book("銀河鉄道の夜","宮沢賢治", 500);
System.out.println(book2.title); System.out.println(book2.title);
System.out.println(book2.author); System.out.println(book2.author);
System.out.println(book2.price); System.out.println(book2.price);
} }
} }

View File

@@ -1,37 +1,21 @@
public class BasicCheck2 { public class BasicCheck2 {
public static void main(String[] args) { public static void main(String[] args) {
// Student student = new Student(3,"a");
//Student型のstudentを宣言、インスタンスを代入する
Student student1 = new Student(1, "鈴木一郎"); Student student1 = new Student(1, "鈴木一郎");
Student student2 = new Student(2, "田中花子"); Student student2 = new Student(2, "田中花子");
Student student3 = new Student(3, "佐藤次郎"); Student student3 = new Student(3, "佐藤次郎");
// student1.studentId = 1;
// student1.name = "鈴木一郎";
// //studentIDに1,nameに鈴木一郎を代入
//
// student2.studentId = 2;
// student2.name ="田中花子";
//
// student3.studentId = 3;
// student3.name ="佐藤次郎";
//
//studentのprintProfileメソッドを呼び出す
student1.printProfile(); student1.printProfile();
student2.printProfile(); student2.printProfile();
student3.printProfile(); student3.printProfile();
Student.getStudentCount();
}
} System.out.println("現在の生徒数:"+Student.getStudentCount()+"人");
// student.studentId = 1;
// student.name = "鈴木一郎";
// //
//System.out.print("学籍番号"+student.studentId); // student.printProfile();
//System.out.print("名前:" + student.name); }
}

View File

@@ -1,53 +1,35 @@
public class BasicCheck3 { public class BasicCheck3 {
public static void main(String[] args) { public static void main(String[] args) {
Item[] items = new Item[3]; Item[] items = new Item[3];
items[0] = new Item(); items[0] = new Item();
items[1] = new Item();
items[2] = new Item();
items[0].setName("ノート") ; items[0].setName("ノート") ;
items[0].setPrice(80); items[0].setPrice(120);
items[0].setStock(50); items[0].setStock(50);
items[1] = new Item(); items[1].setName("消しゴム");
items[1].setName("ノート"); items[1].setPrice(80);
items[1].setPrice(120);
items[1].setStock(30); items[1].setStock(30);
items[2] = new Item(); items[2].setName("鉛筆");
items[2].setName("ノート");
items[2].setPrice(60); items[2].setPrice(60);
items[2].setStock(100); items[2].setStock(100);
for(int i=0;i<3;i++) {
for(int i = 0; i < items.length; i++ )
{
items[i].sell(5); items[i].sell(5);
}
System.out.println("在庫");
for(int i = 0; i < items.length; i ++) {
//items[i]をprintlnに渡すとitemクラスのtoStringが自動で呼ばれる
System.out.println(items[i]); System.out.println(items[i]);
// System.out.println("合計金額:"+items[i].totalPrice());
}
// System.out.println("商品名" + items[i].name+ "価格" + items[i].price +"在庫" + items[i].stock);
// System.out.println("価格" + items[i].price);
// System.out.println("在庫" + items[i].stock);
} }
// Item 0 = new Item("ノート", 120, 50);
}
} }

View File

@@ -1,24 +1,20 @@
public class Book { public class Book {
public String title; String title;
public String author; String author;
public int price; int price;
//引数なしコンストラクタ
public Book() { public Book() {
this.title="タイトル未設定"; this.title="タイトル未設定";
this.author="著者未設定"; this.author="著者未設定";
this.price=0; this.price=0;
// System.out.println("コンストラクタが呼び出されました");
} }
//引数ありコンストラクタ
public Book(String title,String author,int price) { public Book(String title,String author,int price) {
// System.out.println("引数なしのコンストラクタが呼び出されました");
this.title=title; this.title=title;
this.author=author; this.author=author;
this.price=price; this.price=price;
} }
} }

View File

@@ -1,21 +0,0 @@
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 + ")");
}
}

View File

@@ -1,14 +0,0 @@
public class Day3Check1 {
public static void main(String[] args) {
Circle circle = new Circle(2);
circle.area();
circle.showInfo();
// Rectangle rectangle = new Rectangle(2);
// rectangle.area();
}
}

View File

@@ -1,22 +0,0 @@
public class Day3Check2 {
public static void main(String[] args) {
//Rect-クラスをもとにrect-のインスタンスつくる
//3,4をRectangleのコンストラクタに渡す
Rectangle rectangle = new Rectangle(3, 4);
//Rect-はShapeを継承しているため親クラスのshowInfoメソッドを使える
rectangle.showInfo();
//JaGrクラスをもとにインスタンスをつくる
//変数の型はGreetingインタフェース型にしている
Greeting greeting = new JapaneseGreeting();
//greeetingのhelloメソッドよびだす
//実際に入っているインスタンスはJaGrなのでJaGrで作ったhello()が実行される
System.out.println(greeting.hello());
}
}

View File

@@ -1,15 +0,0 @@
public class Day3Check3 {
public static void main(String[] args) {
//Shape型の変数にCircleのインスタンスを代入
Shape shape1 = new Circle(2);
//円の情報を表示
shape1.showInfo();
//Shape型の変数にRectangleのインスタンスを代入
Shape shape2 = new Rectangle(3, 4);
//四角形の情報を表示
shape2.showInfo();
}
}

View File

@@ -0,0 +1,37 @@
public class DepartmentData extends BaseData {
private String idDepartment;
private String nmDepartment;
public String getIdDepartment() {
return idDepartment;
}
public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment;
}
public String getNmDepartment() {
return nmDepartment;
}
public void setNmDepartment(String nmDepartment) {
this.nmDepartment = nmDepartment;
}
@Override
public String toString() {
return getIdDepartment() + "\t" + getNmDepartment();
}
@Override
public String toCSV() {
return getIdDepartment() + "," + getNmDepartment();
}
@Override
public String getPrimaryKeyValue() {
return getIdDepartment();
}
}

View File

@@ -1,23 +1,30 @@
public class EmployeeData extends BaseData { public class EmployeeData extends BaseData {
private String idEmployee; private String idEmployee;
private String nmEmployee; private String nmEmployee;
private String knEmployee; private String knEmployee;
private String mailAddress; private String mailAddress;
private String password; private String password;
private String idDepartment; private String idDepartment;
private static int empCount = 0;
//staticをつけたフィールドはクラス変数:全てのインスタンスで共有される変数 static final String COMPANY_NAME = "Rhizome";
public static int empCount = 0;
// boolean isMatchID = isMatchId(idEmployee);//IdEmployeeが一致するか判断 public void showInfo() {
System.out.println(this.idEmployee + "\t" + this.nmEmployee + "\t" + this.knEmployee + "\t" + this.mailAddress
+ "\t" + this.mailAddress + "\t" + this.password + "\t" + this.idDepartment);
}
@Override
public String toString() {
return getIdEmployee() + "\t" + getNmEmployee() + " " + getKnEmployee() + "\t" + getMailAddress()
+ "\t" + getPassword() + "\t" + getIdDepartment();
}
@Override @Override
public String toCSV() { public String toCSV() {
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + ","
+ getMailAddress() +"," + getPassword() +"," + getIdDepartment() + ","; //フィールドの値をゲッターを使ってカンマ区切り、returnする。 + getPassword() + "," + getIdDepartment();
} }
@Override @Override
@@ -26,133 +33,92 @@ public class EmployeeData extends BaseData {
} }
//idEmployee「ID」を取得するgetter public boolean isMatchId(String id) {
return idEmployee.equals(id);
}
static int getEmpCount() {
return empCount;
}
//getNmEmployee.strip();
public EmployeeData() {
empCount++;
}
public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
String idDepartment) {
this.setIdEmployee(idEmployee);
this.setNmEmployee(nmEmployee);
this.setKnEmployee(knEmployee);
this.setMailAddress(mailAddress);
this.setPassword(password);
this.setIdDepartment(idDepartment);
empCount++;
}
public String getIdEmployee() { public String getIdEmployee() {
return idEmployee; return this.idEmployee;
} }
//idEmployee「ID」を設定するsetter
public void setIdEmployee(String idEmployee) { public void setIdEmployee(String idEmployee) {
if(idEmployee == null || idEmployee.trim().isEmpty()) { idEmployee = idEmployee.strip();
System.out.println("社員IDが空のため設定できませんでした"); int idNum = idEmployee.length();
return;
}
if (idNum == 0) {
System.out.println("社員IDが空のため設定できませんでした");
} else {
this.idEmployee = idEmployee; this.idEmployee = idEmployee;
} }
}
//nmEmployee「名前」を取得するgetter
public String getNmEmployee() { public String getNmEmployee() {
return nmEmployee; return nmEmployee;
} }
//nmEmployee「名前」を設定するsetter
public void setNmEmployee(String nmEmployee) { public void setNmEmployee(String nmEmployee) {
// this.nmEmployee = nmEmployee.trim(); nmEmployee = nmEmployee.strip();
int nmNum = nmEmployee.length();
if (nmEmployee == null || nmEmployee.trim().isEmpty()) { if (nmNum == 0) {
System.out.println("社員名が空のため設定できませんでした"); System.out.println("社員名が空のため設定できませんでした");
return;
}
} else {
this.nmEmployee = nmEmployee; this.nmEmployee = nmEmployee;
} }
//getKnEmployee「カタカナの名前」を取得するgetter
public String getKnEmployee() {
return knEmployee;
} }
//getKnEmployee「カタカナの名前」を設定するsetter public String getKnEmployee() {
return this.knEmployee;
}
public void setKnEmployee(String knEmployee) { public void setKnEmployee(String knEmployee) {
this.knEmployee = knEmployee; this.knEmployee = knEmployee;
} }
//メールアドレスを取得するgetter
public String getMailAddress() { public String getMailAddress() {
return mailAddress; return this.mailAddress;
} }
//メールアドレスを設定するsetter
public void setMailAddress(String mailAddress) { public void setMailAddress(String mailAddress) {
this.mailAddress = mailAddress; this.mailAddress = mailAddress;
} }
//パスワードを取得するgetter
public String getPassword() { public String getPassword() {
return password; return password;
} }
//パスワードを取得するsetter
public void setPassword(String password) { public void setPassword(String password) {
this.password = password; this.password = password;
} }
//IdDepartmentを設定するgetter
public String getIdDepartment() { public String getIdDepartment() {
return idDepartment; return idDepartment;
} }
//IdDepartmentを取得するsetter
public void setIdDepartment(String idDepartment) { public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment; this.idDepartment = idDepartment;
} }
//メソッド名:isMatchId 引数:String id 戻り値:boolean ID一致ならtrue,違えばfalse
public boolean isMatchId(String id) {
return this.idEmployee.equals(id);
}
public EmployeeData(String idEmployee, String nmEmployee,
String knEmployee, String mailAddress, String password, String idDepartment) {
this.setIdEmployee(idEmployee); //2d 段階9
// this.idEmployee = idEmployee;
this.setNmEmployee(nmEmployee);
// this.nmEmployee = nmEmployee;
this.setKnEmployee(knEmployee);
// this.knEmployee = knEmployee;
this.setMailAddress(mailAddress);
// this.mailAddress = mailAddress;
this.setPassword(password);
// this.password = password;
this.setIdEmployee(idEmployee);
// this.idDepartment = idDepartment;
empCount++;
}
// public boolean isMatchId(String id) {
//// if(idEmployee equals )
// {
//
// }
//
// }
// public String Employee(String idEmployee) {
// this.idEmployee= idEmployee;
// }
public EmployeeData() {
empCount++;
// TODO 自動生成されたコンストラクター・スタブ
}
public static int getEmpCount() { //empCountの値を返せるようにする
return empCount;
}
// void showinfo() { //showinfo->toStringにメソッド名変更 + アクセス修飾子publicつける
// // this.idEmployee = idEmployee;
// System.out.println(this.idEmployee + "\t" + this.nmEmployee + "\t" + this.knEmployee + "\t" + this.mailAddress
// + "\t" + this.password + "\t" + this.idDepartment);
//
// }
@Override
public String toString() {
return (this.idEmployee + "\t" + this.nmEmployee + "\t" + this.knEmployee + "\t" + this.mailAddress
+ "\t" + this.password + "\t" + this.idDepartment);
}
} }

View File

@@ -1,4 +0,0 @@
public interface Greeting {
String hello();
}

View File

@@ -1,54 +1,43 @@
public class Item { public class Item {
//フィールドを宣言・外から触れないようにprivate
private String name; private String name;
private int price; private int price;
private int stock; private int stock;
//nameを取得するgetter
public String getName() {
return name;
}
//nameを設定するsetter
public void setName(String name) { //item="ノート"はもう使えない。item[0].setName("ノート")にしている
this.name = name;
}
//priceを取得するgetter
public int getPrice() {
return price;
}
//priceを設定するsetter
public void setPrice(int price) {
this.price = price;
}
//stockを取得するgetter
public int getStock() {
return stock;
}
public void setStock(int stock) {
this.stock = stock;
}
// Item(String name, int price, int stock){
// this.name = name;
// this.price = price;
// this.stock = stock;
// }
//売れた数を在庫から引く
public void sell(int amount) { public void sell(int amount) {
this.setStock(this.getStock()-amount) ; this.setStock(this.getStock()-amount) ;
} }
//Itemの情報を文字列として返す public int totalPrice() {
return this.price*this.stock;
}
@Override @Override
public String toString() { public String toString() {
return getName()+" "+getPrice()+"円(残り"+getStock()+"個)"; return getName()+" "+getPrice()+"円(残り"+getStock()+"個)";
} }
public String getName() {
return this.name;
}
public void setName(String name) {
this.name=name;
}
public int getPrice() {
return this.price;
}
public void setPrice(int price) {
this.price=price;
}
public int getStock() {
return this.stock;
}
public void setStock(int stock) {
this.stock=stock;
}
} }

View File

@@ -1,13 +0,0 @@
//JaGrクラスを作る、implements GrによってGreetingインターフェースを実装する
public class JapaneseGreeting implements Greeting {
//Grインターフェースで定義されているhello()メソッドをこのクラスに実装する
@Override
public String hello() {
//hello()が呼び出されたらString型の文字列を呼び出し元に返す
return "こんにちは";
}
}

View File

@@ -1,196 +1,202 @@
import java.util.ArrayList;
import java.util.Scanner;
public class Main { public class Main {
public static void main(String[] args) { public static void main(String[] args) {
EmployeeData employee = new EmployeeData();
// String idEmployee = "10000";
// String nmEmployee = "山田龍也";
// String knEmployee = "ヤマダタツヤ";
// String mailAddress = "yamada@hoge.jp";
// String password = "aaa";
// String idDepartment = "10";
// EmployeeData[] employees = new EmployeeData[5]; // BaseData employee = new EmployeeData();
// BaseData[] employees = new BaseData[];
// BaseData[] allData = new BaseData();
ArrayList<BaseData> allData = new ArrayList<>();
// employees[1] = new Employee; allData.add(new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"));
// allData[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
// allData[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
// allData[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
// allData[4] = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13");
// allData[11] = new EmployeeData("10005", "丸井悠", "マルイハルカ", "haru@hoge.jp", "fff", "13");
// allData[12] = new EmployeeData("10006", "涼元香織", "スズモトカオリ", "suzumoto@hoge.jp", "ggg", "13");
// allData[13] = new EmployeeData("10007", "葉山稔", "ハヤマミノル", "mhayama@hoge.jp", "hhh", "14");
// allData[14] = new EmployeeData("10008", "川上朱里", "カワカミアカリ", "kawakami@hoge.jp", "iii", "14");
// allData[15] = new EmployeeData("10009", "杉井肇", "スギイハジメ", "sugi@hoge.jp", "jjj", "15");
//
// DepartmentData dept = new DepartmentData();
// dept.setIdDepartment("10");
// dept.setNmDepartment("役員");
// allData[5] = dept;
// dept = new DepartmentData();
// dept.setIdDepartment("11");
// dept.setNmDepartment("人事・総務部");
// dept = new DepartmentData();
// allData[6] = dept;
// dept.setIdDepartment("12");
// dept.setNmDepartment("経理部");
// allData[7] = dept;
// dept = new DepartmentData();
// dept.setIdDepartment("13");
// dept.setNmDepartment("システム開発事業部");
// allData[8] = dept;
// dept = new DepartmentData();
// dept.setIdDepartment("14");
// dept.setNmDepartment("教育事業部");
// allData[9] = dept;
// dept = new DepartmentData();
// dept.setIdDepartment("15");
// dept.setNmDepartment("営業企画部");
// allData[10] = dept;
// employees[0] = new EmployeeData(); Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("1:検索 2:登録 3:更新 4:削除 0:終了");
String usertype = scanner.nextLine();
//0:終了
if (usertype.equals("0")) {
break;
}
//1:検索
if (usertype.equals("1")) {
System.out.println("1:全検索 2:条件検索 それ以外:戻る");
usertype = scanner.nextLine();
if (usertype.equals("1")) {
for (int i = 0; i < allData.size(); i++)
if (allData.get(i) instanceof EmployeeData) {
System.out.println(allData.get(i).toString());
}
} else if (usertype.equals("2")) {
System.out.println("IDを入力してください");
usertype = scanner.nextLine();
boolean result = false;
for (int i = 0; i < allData.size(); i++)
if (allData.get(i) instanceof EmployeeData) {
EmployeeData employee = (EmployeeData) allData.get(i);
if (employee.getIdEmployee().equals(usertype)) {
result = true;
System.out.println(employee.toString());
break;
}
}
if (result == false) {
System.out.println("入力された値で情報がみつかりませんでした");
}
} else {
continue;
}
}
//2:登録
if (usertype.equals("2")) {
System.out.println("社員IDを入力してください");
}
}
}
}
//Day3.9---所属部署から従業員のメアドを検索する
// DepartmentData dep = null;
// EmployeeData emp;
// String nmD = null;
//
// for (int i = 0; i < allData.length; i++) {
// if (allData[i] instanceof DepartmentData) {
// dep = (DepartmentData) allData[i];
// if (dep.getNmDepartment().equals("システム開発事業部")) {
// nmD = dep.getIdDepartment();
// }
// }
//
// }
//
// for (int i = 0; i < allData.length; i++) {
// if (allData[i] instanceof EmployeeData) {
// emp = (EmployeeData) allData[i];
// if (emp.getIdDepartment().equals(nmD)) {
// System.out.println(emp.getNmEmployee() + "\t" + emp.getMailAddress());
// }
//
// }
//
// }
// for (int i = 0; i < allData.length; i++) {
// if (allData[i] instanceof EmployeeData) {
// EmployeeData emp = (EmployeeData) allData[i];
// System.out.println(emp.getMailAddress());
// }
// }
// int emp=0;
// int dep=0;
// for(int i=0;i<allData.length;i++) {
// if(allData[i] instanceof EmployeeData) {
// emp++;
// }
// if(allData[i] instanceof DepartmentData) {
// dep++;
// }
// }
// System.out.println("社員データ:"+emp+"件");
// System.out.println("部署データ:"+dep+"件");
// employees[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"); // employees[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
employee.setIdEmployee("10000"); //private 後 に使用する!! // employees[1] = new EmployeeData("10001","高橋準","タカハシジュン","jtaka@hoge.jp","bbb","10");
employee.setNmEmployee("山田龍也"); //段階 8 確認用 // employees[2] = new EmployeeData("10002","麻枝史明","マエダフミアキ","fmak@hoge.jp","ccc","11");
employee.setKnEmployee("ヤマダタツヤ");
employee.setMailAddress("yamada@hoge.jp");
employee.setPassword("aaa");
employee.setIdDepartment("10");
// employees[0].idEmployee = "1000"; //段階5の分に s[0] 足した //privete 前 に使用!!!!!!
// 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] = new EmployeeData();
// employees[1] = new EmployeeData("10000", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
// employees[1].setIdEmployee ( "10001");
// employees[1].setNmEmployee ( "高橋準");
// employees[1].setKnEmployee ( "タカハシジュン");
// employees[1].setMailAddress ("jtaka@hoge.jp");
// employees[1].setPassword ("bbb");
// employees[1].setIdDepartment("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] = new EmployeeData();//各employee[]をコメントアウトしていたからエラー! employeeに何の箱を入れるかを表記
// employees[2] = new EmployeeData("10002", "麻枝文明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
// employees[2].setIdEmployee("10002");
// employees[2].setNmEmployee("麻枝文明");
// employees[2].setKnEmployee("マエダフミアキ");
// employees[2].setMailAddress("fmak@hoge.jp");
// employees[2].setPassword("ccc");
// employees[2].setIdDepartment("11");
// employees[2].idEmployee = "10002";
// employees[2].nmEmployee = "麻枝文明";
// 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] = new EmployeeData();
// employees[3] = new EmployeeData("10003","丸戸章介","マルトショウスケ","marusyo@hoge.jp","ddd","12"); // employees[3] = new EmployeeData("10003","丸戸章介","マルトショウスケ","marusyo@hoge.jp","ddd","12");
// employees[3].setIdEmployee("10003");
// employees[3].setNmEmployee("丸戸章介");
// employees[3].setKnEmployee("マルトショウスケ");
// employees[3].setMailAddress("marusyo@hoge.jp");
// employees[3].setPassword("ddd");
// employees[3].setIdDepartment("12");
// 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] = new EmployeeData();
// employees[4] = new EmployeeData("10004","三宅武","ミヤケタケシ","miya@hoge.jp","eee","13"); // employees[4] = new EmployeeData("10004","三宅武","ミヤケタケシ","miya@hoge.jp","eee","13");
// employees[4].setIdEmployee("10004"); // System.out.println(employees[0].toCSV());
// employees[4].setNmEmployee("三宅武"); // System.out.println(employees[0].getPrimaryKeyValue());
// employees[4].setKnEmployee("ミヤケタケシ");
// employees[4].setMailAddress("miya@hoge.jp");
// employees[4].setPassword("eee");
// employees[4].setIdDepartment("13");
//
// 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";
//employees[5]= new EmployeeData("10005", , "タカヤマアカネ", "takayamaa@hoge.jp", "taka", "14"); // Scanner sc = new Scanner(System.in);
// //
// Scanner scanner = new Scanner(System.in); //8段階目!スキャナー作成 // for (int i = 0; i < employees.length; i++) {
// while (true) { //while(true)- 9段階目課題 // System.out.println("1:検索 2:登録 3:更新 4:削除 0:終了");
// System.out.println("検索したい社員IDを入力してください"); //検索するID入力 // String id = sc.nextLine();
// //キーボードから入力されたIDをsearchIdに入れている // boolean result = false;
// String searchId = scanner.nextLine();
// //
// if (searchId.equals("0")) { //0が入力された場合はシステム終了 // if (id.equals("0")) {
// System.out.println("システムを終了します"); // System.out.println("システムを終了します");
// break; //while文を終了 システム終了
// }
// //社員が見つかったかを判定する変数
// boolean found = false;
// //employee配列を順番に確認
// for (int i = 0; i < employees.length; i++) {
// //employeesのi番目のIDと、入力された社員IDは一致するか確認
// if (employees[i].isMatchId(searchId)) {
// System.out.println(employees[i]); //2d6段階:showinfoから変更
//// employees[i].showinfo(); //一致した社員の情報を表示
// found = true; //見つかったことを記録
// break; //検索終了 for文を終了
// }
// }
//
// if (!found) { //社員が見つからなかったら
// System.out.println("該当する社員が見つかりませんでした。");
// }
// }
// //Scannerを閉じる
// scanner.close();
// System.out.println(employees[0]);
// System.out.println(employees[1]);
// System.out.println(employees[2]);
// System.out.println(employees[3]);
// System.out.println(employees[4]);
// System.out.println(employees[5]);
//5人分のインスタンスをすべて生成し終えた後にクラス名から呼び出し、件数表示
// System.out.println("現在の社員データ件数:" + EmployeeData.empCount + "件");
// employees[0].showinfo();
// employees[1].showinfo();
// employees[2].showinfo();
// employees[3].showinfo();
// employees[4].showinfo();
//
// String searchId = "10002"; //7段階目!※コメントアウト中
// boolean found = false;
//
// System.out.println(searchId + "を検索します");
//
// for(int i = 0; i < employees.length; i++) {
// if(employees[i].isMatchId(searchId)) {
// found = true;
// break; // break;
// } // }
// if (employees[i].getPrimaryKeyValue().equals(id)) {
// result = true;
// employees[i].toString();
//
// } // }
// //
// System.out.println(found); // if (result == false) {
// // System.out.println("該当する社員が見つかりませんでした");
// searchId = "99999";
// found = false;
//
// System.out.println(searchId + "を検索します");
//
// for(int i = 0; i < employees.length; i++) {
// if(employees[i].isMatchId(searchId)) {
// found = true;
// break;
// } // }
//
// } // }
//
// for (int i = 0; i < 5; i++) {
// if (employee[i].getNmEmployee() == null) {
// continue;
// }
// System.out.println(employee[i]);
// }
//
//
//
// System.out.println("現在の社員データ数"+EmployeeData.getEmpCount());
//
// System.out.println(EmployeeData.COMPANY_NAME);
// System.out.println(found); //7段階目の確認用コード // System.out.println();
// System.out.println(employee.nmEmployee);
// employees[0].showinfo(); // System.out.println(employee.knEmployee);
// employees[1].showinfo(); // System.out.println(employee.mailAddress);
// employees[2].showinfo(); // System.out.println(employee.password);
// employees[3].showinfo(); // System.out.println(employee.idDepartment);
// employees[4].showinfo();
// System.out.println(employee +"," +idEmployee +"," + nmEmployee +"," + knEmployee +"," + mailAddress +"," + password + "," +idDepartment);
System.out.println(employee.toCSV());
System.out.println(employee.getPrimaryKeyValue());
// System.out.println(employee);
// System.out.println(idEmployee);
// System.out.println(nmEmployee);
// System.out.println(knEmployee);
// System.out.println(mailAddress);
// System.out.println(password);
// System.out.println(idDepartment);
}
}

View File

@@ -1,22 +0,0 @@
public class Rectangle extends Shape {
private double width;
private double height; {
}
public Rectangle(double width, double height) {
super("四角形");
this.width = width;
this.height = height;
}
public double area() {
return width * height;
}
// public void showInfo(){
// super.showInfo();
// System.out.println("(半径:" + this.area + ")");
// }
}

View File

@@ -1,36 +0,0 @@
public abstract 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 abstract 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 + ")");
System.out.println("四角形" + "の面積は" + this.area() + "です。");
}
// @Override
// public void showInfo(){
//
// }
}

View File

@@ -1,53 +1,24 @@
public class Student {//クラス新規作成 public class Student {
int studentId;
String name;
static int studentCount = 0;
int studentId; //フィールドを宣言 int public void printProfile() {
String name; //String
static int studentCount = 0; //生徒が何人作られたかを数えるための、クラス全体で共有するフィールド
void printProfile() {//メソッドを宣言・以下の内容をsysoで出力
// for(int i = 0; i <= 3; i++) {
System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name); System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
// }
// System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
} }
public Student(int studentId, String name) {
public Student(int studentId, String name) { //コンストラクタを追加 this.studentId = studentId;
this.studentId = studentId; //渡された引数をそれぞれ対応するフィールドに代入する
this.name = name; this.name = name;
studentCount++; studentCount++;
} }
public static int getStudentCount() { public static int getStudentCount() {
// studentCount++;
return studentCount; return studentCount;
} }
} }
// public static void main(String[] args) {
// Student s = new Student(1,"鈴木一郎");
// s.printProfile();
//
//
// public Student(int studentId, String name) {
// student.studentId = 1;

View File

@@ -0,0 +1,22 @@
package day3_123;
public class Circle extends Shape {
private double radius;
public Circle(double radius) {
super("円");
this.radius=radius;
}
@Override
public double area() {
return Math.PI*radius*radius;
}
@Override
public void showInfo() {
super.showInfo();
System.out.println("(半径:"+this.radius+")");
}
}

View File

@@ -0,0 +1,10 @@
package day3_123;
public class Day3Check1 {
public static void main(String[] args) {
Circle circle=new Circle(2);
circle.showInfo();
}
}

View File

@@ -0,0 +1,15 @@
package day3_123;
public class Day3Check2 {
public static void main(String[] args) {
Rectangle rec = new Rectangle(3, 4);
rec.showInfo();
Greeting gre = new JapaneseGreeting();
System.out.println(gre.hello());
}
}

View File

@@ -0,0 +1,13 @@
package day3_123;
public class Day3Check3 {
public static void main(String[] args) {
Shape shape1 = new Circle(2);
shape1.showInfo();
Shape shape2 = new Rectangle(3,4);
shape2.showInfo();
}
}

View File

@@ -0,0 +1,6 @@
package day3_123;
public interface Greeting {
String hello();
}

View File

@@ -0,0 +1,9 @@
package day3_123;
public class JapaneseGreeting implements Greeting {
@Override
public String hello() {
return "こんにちは";
}
}

View File

@@ -0,0 +1,18 @@
package day3_123;
public class Rectangle extends Shape {
private double width;
private double height;
public Rectangle(double width,double height) {
super("四角形");
this.width=width;
this.height=height;
}
@Override
public double area() {
return width*height;
}
}

View File

@@ -0,0 +1,15 @@
package day3_123;
public abstract class Shape {
private String name;
public Shape(String name) {
this.name=name;
}
public abstract double area();
public void showInfo() {
System.out.println(this.name+"の面積は"+this.area()+"です");
}
}