15 Commits

Author SHA1 Message Date
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
21 changed files with 225 additions and 491 deletions

6
.classpath Normal file
View File

@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="src" path="em-oop/src"/>
<classpathentry kind="output" path="bin"/>
</classpath>

1
.gitignore vendored
View File

@@ -25,3 +25,4 @@ hs_err_pid*
replay_pid* replay_pid*
/.metadata/ /.metadata/
/bin/

17
.project Normal file
View File

@@ -0,0 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>java-cui-em-oop</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

View File

@@ -1,9 +0,0 @@
public abstract class BaseData {
//3-4
public abstract String toString();
public abstract String toCSV();
public abstract String getPrimaryKeyValue();
}

View File

@@ -2,27 +2,22 @@
public class BasicCheck1 { public class BasicCheck1 {
public static void main(String[] args) { public static void main(String[] args) {
//1-1 // 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);
//1-1
//2-1
Book book1 = 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.author = "夏目漱石";
// book.price = 800;
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);
//2-1
} }
} }

View File

@@ -1,24 +1,21 @@
public class BasicCheck2 { public class BasicCheck2 {
public static void main(String[] args) { public static void main(String[] args) {
//1-2
// Student student = new Student();
// student.studentId=1;
// student.name="鈴木一郎";
//
// student.printProfile();
//1-2
//2-3
Student student1 = new Student(1, "鈴木一郎"); Student student1 = new Student(1, "鈴木一郎");
student1.printProfile();
Student student2 = new Student(2, "田中花子"); Student student2 = new Student(2, "田中花子");
student2.printProfile();
Student student3 = new Student(3, "佐藤次郎"); Student student3 = new Student(3, "佐藤次郎");
student1.printProfile();
student2.printProfile();
student3.printProfile(); student3.printProfile();
System.out.println("現在の生徒数:" + Student.getStudentCount() + "人"); System.out.println("現在の生徒数:"+Student.getStudentCount()+"人");
//2-3
// student.studentId = 1;
// student.name = "鈴木一郎";
//
// student.printProfile();
} }
} }

View File

@@ -1,19 +1,35 @@
public class BasicCheck3 { public class BasicCheck3 {
public static void main(String[] args) { public static void main(String[] args) {
//1-3
Item[] items = new Item[3]; Item[] items = new Item[3];
items[0] = new Item("ノート", 120, 50); items[0] = new Item();
items[1] = new Item("消しゴム", 80, 30); items[1] = new Item();
items[2] = new Item("鉛筆", 60, 100); items[2] = new Item();
for (int i = 0; i < 3; i++) { 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(int i=0;i<3;i++) {
items[i].sell(5); items[i].sell(5);
//2-2 System.out.println(items[i]);
System.out.println(items[i].toString()); // System.out.println("合計金額:"+items[i].totalPrice());
//2-2
} }
//1-3
} }
} }

View File

@@ -1,22 +1,20 @@
public class Book { public class Book {
//1-1
String title; String title;
String author; String author;
int price; int price;
//1-1
//2-1
public Book() { public Book() {
title = "タイトル未設定"; this.title="タイトル未設定";
author = "著者未設定"; this.author="著者未設定";
price = 0; this.price=0;
} }
public Book(String title,String author,int price) {
public Book(String title, String author, int price) { this.title=title;
this.title = title; this.author=author;
this.author = author; this.price=price;
this.price = price;
} }
//2-1
} }

View File

@@ -1,20 +0,0 @@
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

@@ -1,9 +0,0 @@
public class Day3Check1 {
public static void main(String[] args) {
Circle circle = new Circle(2);
circle.showInfo();
}
}

View File

@@ -1,11 +0,0 @@
public class Day3Check2 {
public static void main(String[] args) {
Rectangle rectangle = new Rectangle(3, 4);
rectangle.showInfo();
Greeting greeting = new JapaneseGreeting();
System.out.println(greeting.hello());
}
}

View File

@@ -1,12 +0,0 @@
public class DayCheck3 {
public static void main(String[] args) {
Shape shape1 = new Circle(2);
shape1.showInfo();
Shape shape2 = new Rectangle(3, 4);
shape2.showInfo();
}
}

View File

@@ -1,44 +0,0 @@
public class DepartmentData extends BaseData {
//3-6
private String idDepartment;
private String nmDepartment;
//3-6
public DepartmentData(String idDepartment, String nmDepartment) {
this.idDepartment = idDepartment;
this.nmDepartment = nmDepartment;
}
@Override
public String toString() {
return getIdDepartment() + "\t" + getNmDepartment();
}
@Override
public String toCSV() {
return getIdDepartment() + "," + getNmDepartment();
}
@Override
public String getPrimaryKeyValue() {
return getIdDepartment();
}
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;
}
//3-6
}

View File

@@ -1,124 +1,75 @@
public class EmployeeData extends BaseData { public class EmployeeData {
//1-4 private String idEmployee;
private String IdEmployee, nmEmployee, knEmployee, mailAddress, password, idDepartment; private String nmEmployee;
//1-4 + 2-4 private String knEmployee;
private String mailAddress;
private String password;
private String idDepartment;
private static int empCount = 0;
static final String COMPANY_NAME = "Rhizome";
//1-6
// public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
// String idDepartment) {
// this.IdEmployee = idEmployee;
// this.nmEmployee = nmEmployee;
// this.knEmployee = knEmployee;
// this.mailAddress = mailAddress;
// this.password = password;
// this.idDepartment = idDepartment;
// }
//1-6
//1-5
//2-4
//2-6
@Override @Override
public String toString() { public String toString() {
// System.out.println(getIdEmployee() + "\t" + getNmEmployee() + "\t" + getKnEmployee() + "\t" + getMailAddress() return getIdEmployee() + "\t" + getNmEmployee() + " " + getKnEmployee() + "\t" + getMailAddress()
// + "\t" + getPassword() + "\t" + getIdDepartment()); + "\t" + getPassword() + "\t" + getIdDepartment();
return (getIdEmployee() + "\t" + getNmEmployee() + "\t" + getKnEmployee() + "\t" + getMailAddress()
+ "\t" + getPassword() + "\t" + getIdDepartment());
}
//2-6
//2-4
//1-5
//3-4
@Override
public String toCSV() {
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress()
+ "," + getPassword() + "," + getIdDepartment();
} }
public String getPrimaryKeyValue() { static int getEmpCount() {
return IdEmployee; return empCount;
} }
//3-4
//1-7 //getNmEmployee.strip();
boolean isMatchId(String id) {
System.out.println(id + " を検索します");
if (id.equals(IdEmployee)) {
System.out.println(true);
} else {
System.out.println(false);
}
return false;
}
//1-7
//2-5
public EmployeeData() { public EmployeeData() {
//2-7
empCount++; empCount++;
//2-7
} }
public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password, public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
String idDepartment) { String idDepartment) {
nmEmployee=nmEmployee.strip();
int nmNum = nmEmployee.length();
if(nmNum==0) {
System.out.println("社員名が空のため設定できませんでした");
}
if(nmNum>0){
this.setIdEmployee(idEmployee); this.setIdEmployee(idEmployee);
this.setNmEmployee(nmEmployee); this.setNmEmployee(nmEmployee);
this.setKnEmployee(knEmployee); this.setKnEmployee(knEmployee);
this.setMailAddress(mailAddress); this.setMailAddress(mailAddress);
this.setPassword(password); this.setPassword(password);
this.setIdDepartment(idDepartment); this.setIdDepartment(idDepartment);
//2-7
empCount++; empCount++;
//2-7 }
} }
//2-5
//2-7
private static int empCount = 0;
static int getEmpCount() {
return empCount;
}
//2-7
//2-4
public String getIdEmployee() { public String getIdEmployee() {
return IdEmployee; return this.idEmployee;
} }
public void setIdEmployee(String idEmployee) { public void setIdEmployee(String idEmployee) {
//2-9
idEmployee = idEmployee.strip(); this.idEmployee = idEmployee;
if (idEmployee.length() == 0) {
System.out.println("社員IDが空のため設定できませんでした");
return;
} else {
this.IdEmployee = idEmployee;
}
//2-9
} }
public String getNmEmployee() { public String getNmEmployee() {
return nmEmployee; return nmEmployee;
} }
public void setNmEmployee(String nmEmployee) { public void setNmEmployee(String nmEMployee) {
//2-8 this.nmEmployee = nmEMployee;
nmEmployee = nmEmployee.strip();
if (nmEmployee.length() == 0) {
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;
}
//2-8
} }
public String getKnEmployee() { public String getKnEmployee() {
return knEmployee; return this.knEmployee;
} }
public void setKnEmployee(String knEmployee) { public void setKnEmployee(String knEmployee) {
@@ -126,7 +77,7 @@ public class EmployeeData extends BaseData {
} }
public String getMailAddress() { public String getMailAddress() {
return mailAddress; return this.mailAddress;
} }
public void setMailAddress(String mailAddress) { public void setMailAddress(String mailAddress) {
@@ -148,5 +99,9 @@ public class EmployeeData extends BaseData {
public void setIdDepartment(String idDepartment) { public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment; this.idDepartment = idDepartment;
} }
//2-4
} }

View File

@@ -1,3 +0,0 @@
public interface Greeting {
String hello();
}

View File

@@ -1,51 +1,43 @@
public class Item { public class Item {
//1-3
private String name; private String name;
private int price; private int price;
private int stock; private int stock;
public Item(String name, int price, int stock) { public void sell(int amount) {
this.name = name; this.setStock(this.getStock()-amount) ;
this.price = price;
this.stock = stock;
} }
void sell(int amount) { public int totalPrice() {
// this.stock = this.stock - amount; return this.price*this.stock;
this.setStock(this.getStock() - amount); //2-2
//System.out.println(name + " " + price + "円 残り" + stock + "個");
} }
//1-3
//2-2
@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() { public String getName() {
return name; return this.name;
}
public void setName(String name) {
this.name=name;
} }
public void setName(String name) {
this.name = name;
}
public int getPrice() { public int getPrice() {
return price; return this.price;
}
public void setPrice(int price) {
this.price=price;
} }
public void setPrice(int price) {
this.price = price;
}
public int getStock() { public int getStock() {
return stock; return this.stock;
}
public void setStock(int stock) {
this.stock=stock;
} }
public void setStock(int stock) {
this.stock = stock;
}
//2-2
} }

View File

@@ -1,7 +0,0 @@
public class JapaneseGreeting implements Greeting {
@Override
public String hello() {
return "こんにちは";
}
}

View File

@@ -1,168 +1,73 @@
//import java.util.Scanner;//1-8
public class Main { public class Main {
public static void main(String[] args) { public static void main(String[] args) {
//1-8 EmployeeData[] employee = new EmployeeData[5];
// Scanner scanner = new Scanner(System.in); employee[0] = new EmployeeData("10000"," ","ヤマダタツヤ","yamada@hoge.jp","aaa","10");
// //1-9 employee[1] = new EmployeeData();
// boolean end = false; employee[2] = new EmployeeData();
// while (!end) { employee[3] = new EmployeeData();
// //1-9 employee[4] = new EmployeeData();
// System.out.println("検索したい社員IDを入力してください(終了するには0を入力)");
// String num = scanner.nextLine().strip();
// boolean found = false;
//1-8
//1-4
// BaseData employee = new EmployeeData();
// employee.setIdEmployee("10000");
// employee.setNmEmployee("山田龍也");
// employee.setKnEmployee("ヤマダタツヤ");
// employee.setMailAddress("yamada@hoge.jp");
// employee.setPassword("aaa");
// employee.setIdDepartment("10");
// System.out.println(employee.getIdEmployee());
// System.out.println(employee.getNmEmployee());
// System.out.println(employee.getKnEmployee());
// System.out.println(employee.getMailAddress());
// System.out.println(employee.getPassword());
// System.out.println(employee.getIdDepartment());
//1-4
//3-4
// System.out.println(employee.toCSV());
// System.out.println(employee.getPrimaryKeyValue());
//3-4
//2-5 // employee[0].setIdEmployee("10000");
// EmployeeData emp1 = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"); // employee[0].setNmEmployee("山田龍也");
// EmployeeData emp2 = new EmployeeData("10001", "高橋準", "タカハシジュン", "Jtaka@hoge.jp", "bbb", "11"); // employee[0].setKnEmployee("ヤマダタツヤ");
// EmployeeData emp3 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "12"); // employee[0].setMailAddress("yamada@hoge.jp");
// EmployeeData emp4 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "13"); // employee[0].setPassword("aaa");
// EmployeeData emp5 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "14"); // employee[0].setIdDepartment("10");
//2-5 //
employee[1].setIdEmployee("10001");
employee[1].setNmEmployee("高橋準");
employee[1].setKnEmployee("タカハシジュン");
employee[1].setMailAddress("jtaka@hoge.jp");
employee[1].setPassword("bbb");
employee[1].setIdDepartment("10");
//1-6 employee[2].setIdEmployee("10002");
BaseData[] employee = new EmployeeData[5]; employee[2].setNmEmployee("麻枝史明");
employee[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"); employee[2].setKnEmployee("マエダフミアキ");
employee[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "Jtaka@hoge.jp", "bbb", "10"); employee[2].setMailAddress("fmak@hoge.jp");
employee[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11"); employee[2].setPassword("ccc");
employee[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12"); employee[2].setIdDepartment("11");
employee[4] = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13");
//1-5
//1-6
//2-5
// System.out.println(emp1);
// System.out.println(emp2);
// System.out.println(emp3);
// System.out.println(emp4);
// System.out.println(emp5);
// for (int i = 0; i < employee.length; i++) {
// System.out.println(employee[i]);
// }
//2-7
// System.out.println("現在の社員データ件数:" + EmployeeData.getEmpCount() + "件");
// for (int i = 0; i < 5; i++) {
// employee[i].showInfo();
// }
//2-7
//2-5
//1-6
//1-5
//1-7 employee[3].setIdEmployee("10003");
//3-5 employee[3].setNmEmployee("丸戸章介");
// System.out.println(employee[2].getPrimaryKeyValue().equals("10002")); employee[3].setKnEmployee("マルトショウスケ");
// System.out.println(employee[2].getPrimaryKeyValue().equals("99999")); employee[3].setMailAddress("marusyo@hoge.jp");
//3-5 employee[3].setPassword("ddd");
//1-7 employee[3].setIdDepartment("12");
//1-8 employee[4].setIdEmployee("10004");
// for (int i = 0; i < employee.length; i++) { employee[4].setNmEmployee("三宅武");
// if (num.equals(employee[i].getIdEmployee())) { employee[4].setKnEmployee("ミヤケタケシ");
// //2-6 employee[4].setMailAddress("miya@hoge.jp");
// System.out.println(employee[i]); employee[4].setPassword("eee");
// //2-6 employee[4].setIdDepartment("13");
//// employee[i].showInfo(); //
// found = true;
// break;
// } else if (num.equals("0")) {
// System.out.println("システムを終了します");
// return;
// }
// }
// if (!found) {
// System.out.println("該当する社員が見つかりませんでした");
// }
//1-8 isMatchIdメソッドを使っていない
// }
//3-6
BaseData[] allData = new BaseData[11];
allData[0] = employee[0];
allData[1] = employee[1];
allData[2] = employee[2];
allData[3] = employee[3];
allData[4] = employee[4];
DepartmentData dept = new DepartmentData("10", "役員"); for(int i=0;i<5;i++) {
allData[5] = dept; System.out.println(employee[i]);
DepartmentData dept2 = new DepartmentData("11", "人事・総務部");
allData[6] = dept2;
DepartmentData dept3 = new DepartmentData("12", "経理部");
allData[7] = dept3;
DepartmentData dept4 = new DepartmentData("13", "システム開発事業部");
allData[8] = dept4;
DepartmentData dept5 = new DepartmentData("14", "教育事業部");
allData[9] = dept5;
DepartmentData dept6 = new DepartmentData("15", "営業企画部");
allData[10] = dept6;
for (int i = 0; i < 11; i++) {
System.out.println(allData[i]);
} }
//3-6
//3-7
int Cou = 0;
int Cou2 = 0;
for (int i = 0; i < 11; i++) {
if (allData[i] instanceof EmployeeData) {
Cou = Cou + 1;
} else if (allData[i] instanceof DepartmentData) {
Cou2 = Cou2 + 1;
}
}
System.out.println("社員データ:" + Cou + "件");
System.out.println("部署データ:" + Cou2 + "件");
//3-7
//3-8 System.out.println("現在の社員データ数"+EmployeeData.getEmpCount());
for (int i = 0; i < 11; i++) {
if (allData[i] instanceof EmployeeData) { System.out.println(EmployeeData.COMPANY_NAME);
EmployeeData emp = (EmployeeData) allData[i];
System.out.println(emp.getMailAddress()); // System.out.println();
} // System.out.println(employee.nmEmployee);
} // System.out.println(employee.knEmployee);
//3-8 // System.out.println(employee.mailAddress);
// System.out.println(employee.password);
// System.out.println(employee.idDepartment);
//3-9
for (int i = 0; i < 11; i++) {
if (allData[i] instanceof DepartmentData) {
DepartmentData bd = (DepartmentData) allData[i];
if (bd.getNmDepartment().equals("システム開発事業部")) {
for (int j = 0; j < 11; j++) {
if (allData[j] instanceof EmployeeData) {
EmployeeData emp = (EmployeeData) allData[j];
if (bd.getIdDepartment().equals(emp.getIdDepartment())) {
System.out.println(emp.getNmEmployee() + "\t" + emp.getMailAddress());
}
}
}
}
}
}
//3-9
} }
} }

View File

@@ -1,16 +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;
}
@Override
public double area() {
return width * height;
}
}

View File

@@ -1,14 +0,0 @@
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");
}
}

View File

@@ -1,27 +1,24 @@
public class Student { public class Student {
//1-2
int studentId; int studentId;
String name; String name;
static int studentCount = 0;
void printProfile() { public void printProfile() {
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);
}
//1-2
//2-3 }
public Student(int studentId, String name) { public Student(int studentId, String name) {
this.studentId = studentId; this.studentId = studentId;
this.name = name; this.name = name;
}
static int studentCount = 0;
{
studentCount++; studentCount++;
} }
static int getStudentCount() { public static int getStudentCount() {
return studentCount; return studentCount;
} }
//2-3
} }