8 Commits

Author SHA1 Message Date
m-shimizu
2ed5d89eca 2段階目 2026-09-16 13:12:13 +09:00
m-shimizu
5eebc7c766 1段階目 2026-09-15 16:25:25 +09:00
m-shimizu
ac9efcc611 6段階目 2026-09-15 15:54:40 +09:00
m-shimizu
2065f850b4 段階4 2026-09-15 14:54:00 +09:00
m-shimizu
389c1a0a48 段階3 2026-09-15 14:26:28 +09:00
m-shimizu
357ad900a1 段階2 2026-09-15 13:51:34 +09:00
7559a7dfa7 段階2完了いたしました。 2026-09-14 16:36:18 +09:00
43567c0e0c 1段階目完了 2026-09-14 15:14:17 +09:00
20 changed files with 171 additions and 453 deletions

6
.classpath Normal file
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@@ -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>

17
.project Normal file
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@@ -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>

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@@ -1,10 +0,0 @@
public abstract class BaseData {
public abstract String toString();
public abstract String toCSV();
public abstract String getPrimaryKeyValue();
}

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@@ -2,13 +2,26 @@
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 book1 = new Book();
Book book2 = new Book("銀河鉄道の夜", "宮沢賢治", 500);
System.out.println(book1.title + "\n" + book1.author + "\n" + book1.price);
System.out.println(book2.title + "\n" + book2.author + "\n" + book2.price);
book1.title = "タイトル未設定";
book1.author ="著者未設定";
book1.price = 0;
System.out.println(book1.title);
System.out.println(book1.author);
System.out.println(book1.price);
Book book2 = new Book();
book2.title = "銀河鉄道の夜";
book2.author ="宮沢賢治";
book2.price = 500;
System.out.println(book2.title);
System.out.println(book2.author);
System.out.println(book2.price);
}
}

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@@ -1,23 +1,15 @@
public class BasicCheck2 {
public static void main(String[] args) {
Student student = 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 student3 = new Student(3, "佐藤次郎");
student1.printProfile();
student2.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);
// System.out.print("名前:" + student.name);
student.printProfile();
}
}
}

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@@ -1,31 +1,35 @@
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].setName("ノート");
items[1].setName("消しゴム");
items[2].setName("鉛筆");
items[0].setPrice(120);
items[1].setPrice(80);
items[2].setPrice(60);
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 < items.length; i++) {
items[i].sell(5);
System.out.println(items[i].getName() + " " + items[i].getPrice() + "円 (残り" + items[i].getStock() + "個) ");
// System.out.println("合計金額 " + items[i].totalPrice() + "円");
// System.out.println();
}
for (int i = 0; i < items.length; i++) {
System.out.println(items[i]);
}
}
}

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

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@@ -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 + ")");
}
}

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@@ -1,8 +0,0 @@
public class Day3Check1 {
public static void main(String[] args) {
Circle radius = new Circle(2);
radius.showInfo();
}
}

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

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@@ -1,11 +0,0 @@
public class Day3Check3 {
public static void main(String[] args) {
Shape shape1 = new Circle(2);
shape1.showInfo();
Shape shape2 = new Rectangle(3, 4);
shape2.showInfo();
}
}

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@@ -1,39 +0,0 @@
public class DepartmentData extends BaseData {
private String idDepartment, nmDepartment;
public DepartmentData(String idDepartment,String nmDepartment) {
this.setIdDepartment(idDepartment);
this.setNmDepartment(nmDepartment);
return;
}
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();
}
public String toCSV() {
return getIdDepartment() + "," + getNmDepartment();
}
public String getPrimaryKeyValue() {
return getIdDepartment();
}
}

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@@ -1,121 +1,23 @@
public class EmployeeData extends BaseData {
private String idEmployee;
private String nmEmployee;
private String knEmployee;
private String mailAddress;
private String password;
private String idDepartment;
private static int empCount = 0;
static int getempCount() {
return empCount;
public class EmployeeData {
String idEmployee;
String nmEmployee;
String knEmployee;
String mailAddress;
String password;
String idDepartment;
void showInfo() {
System.out.println(
this.idEmployee + "\t"
+ this.nmEmployee + "\t"
+ this.knEmployee + "\t"
+ this.mailAddress + "\t"
+ this.password + "\t"
+ this.idDepartment
);
}
public EmployeeData() {
empCount++;
}
static int getEmpCount() {
return 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() {
return idEmployee;
}
public void setIdEmployee(String idEmployee) {
this.idEmployee = idEmployee;
if (idEmployee == null || idEmployee.strip().isEmpty()) {
System.out.println("社員IDが空のため設定できませんでした");
return;
}
}
public String getNmEmployee() {
return nmEmployee;
}
public void setNmEmployee(String nmEmployee) {
this.nmEmployee = nmEmployee;
if (nmEmployee == null || nmEmployee.strip().isEmpty()) {
System.out.println("社員名が空のため設定できませんでした");
return;
}
}
public String getKnEmployee() {
return knEmployee;
}
public void setKnEmployee(String knEmployee) {
this.knEmployee = knEmployee;
}
public String getMailAddress() {
return mailAddress;
}
public void setMailAddress(String mailAddress) {
this.mailAddress = mailAddress;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getIdDepartment() {
return idDepartment;
}
public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment;
}
@Override
public String toString() {
return (this.getIdEmployee() + "\t" + this.getNmEmployee() + "\t" + this.getKnEmployee() + "\t"
+ this.getMailAddress() + "\t" + this.getPassword() + "\t" + this.getIdDepartment());
}
@Override
public String toCSV() {
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + ","
+ getPassword() + "," + getIdDepartment();
}
public String getPrimaryKeyValue() {
return getIdEmployee();
}
public boolean isMatchId(String id) {
if (id == null || this.idEmployee == null) {
return false;
}
return this.idEmployee.equals(id);
}
}
}

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

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@@ -1,23 +1,12 @@
public class Item {
private String name;
private int price;
private int stock;
public void sell(int amount) {
this.setStock(this.getStock() - amount);
}
public int totalPrice() {
return price * stock;
}
@Override
public String toString() {
return (getName() + " " + getPrice() + "円 (残り" + getStock() + "個");
}
public String getName() {
return name;
}
@@ -42,4 +31,13 @@ public class Item {
this.stock = stock;
}
void sell(int amount) {
this.setStock(this.getStock() - amount);
}
@Override
public String toString() {
return getName() + "" + getPrice() + "円(残り" + getStock() + "個)";
}
}

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@@ -1,8 +0,0 @@
public class JapaneseGreeting implements Greeting {
@Override
public String hello() {
return "こんにちは";
}
}

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@@ -1,130 +1,64 @@
public class Main {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
// while (true) {
// Scanner scanner = new Scanner(System.in);
// 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 input = scanner.nextLine();
BaseData[] employees = new BaseData[5];
// BaseData employee = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
BaseData[] allData = new BaseData[11];
//
allData[0] = 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", "ミタケタケシ", "miya@hoge.jp", "eee", "13");
allData[5] = new DepartmentData("10", "役員");
allData[6] = new DepartmentData("11", "人事・総務部");
allData[7] = new DepartmentData("12", "経理");
allData[8] = new DepartmentData("13", "システム開発事業部");
allData[9] = new DepartmentData("14", "教育事業部");
allData[10] = new DepartmentData("15", "営業企画部");
// String targetDeptId = "";
//
// for (int i = 0; i < allData.length; i++) {
//
// if (allData[i] instanceof DepartmentData) {
// DepartmentData dept = (DepartmentData) allData[i];
//
// if (dept.getNmDepartment().equals("システム開発事業部")) {
// targetDeptId = dept.getIdDepartment();
// break;
// }
// }
// }
//
// for (int i = 0; i < allData.length; i++) {
// if (allData[i] instanceof EmployeeData) {
// EmployeeData emp = (EmployeeData) allData[i];
// if (emp.getIdDepartment().equals(targetDeptId)) {
// System.out.println(emp.getNmEmployee() + "\t" + emp.getMailAddress());
// }
// }
// }
// int count = 0;
// int countt = 0;
// for (int i = 0; i < allData.length; i++) {
// if (allData[i] instanceof EmployeeData) {
// // count++;
// EmployeeData emp = (EmployeeData) allData[i];
//
// System.out.println(emp.getMailAddress());
// else if (allData[i] instanceof DepartmentData) {
// countt++;
// }
// System.out.println("社員のデータ:" + count + "件");
// System.out.println("部署のデータ:" + countt + "件");
// System.out.println(allData[i]);
// employees[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
// employees[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
// employees[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
// employees[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
// employees[4] = new EmployeeData("10004", "三宅武", "ミタケタケシ", "miya@hoge.jp", "eee", "13");
// //
// for (int i = 0; i < employees.length; i++) {
// System.out.println(allData[i]);
// }
// System.out.println("現在の社員データ件数:" + EmployeeData.getEmpCount() + "件");
if (allData[0] instanceof EmployeeData) {
EmployeeData sampleEmp = (EmployeeData) allData[0];
sampleEmp.setNmEmployee("");
EmployeeData[] Employees = new EmployeeData[5];
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";
// System.out.println(Employees.idEmployee);
// System.out.println(Employees.nmEmployee);
// System.out.println(Employees.knEmployee);
// System.out.println(Employees.mailAddress);
// System.out.println(Employees.password);
// System.out.println(Employees.idDepartment);
for (int i = 0; i < Employees.length; i++) {
Employees[i].showInfo();
}
if (allData[0] instanceof EmployeeData) {
EmployeeData sampleEmp = (EmployeeData) allData[0];
sampleEmp.setIdEmployee("");
}
// String serchId1 = "10002";
// System.out.println(serchId1 + "を検索します");
// boolean bo = false;
// for (int i = 0; i < employees.length; i++) {
// if (((EmployeeData) employees[i]).isMatchId(serchId1)) {
// bo = true;
// break;
// }
//
// }
// System.out.println(bo);
// String serchId2 = "99999";
// System.out.println(serchId2 + "を検索します");
// boolean bl = false;
// for (int i = 0; i < employees.length; i++) {
// if (((EmployeeData) employees[i]).isMatchId(serchId2)) {
// bl = true;
// break;
// }
// }
// System.out.println(bl);
// boolean a = false;
// for (int i = 0; i < employees.length; i++) {
// if (((EmployeeData) employees[i]).isMatchId(input)) {
// a = true;
// System.out.println(employees[i]);
// break;
//
// }
// }
// if (!a) {
// System.out.println("該当する社員が見つかりませんでした");
// }
// if (input.equals("0")) {
// System.out.println("システムを終了します");
// break;
// }
// System.out.println(employee.toCSV());
// System.out.println(employee.getPrimaryKeyValue());
}
}

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@@ -1,17 +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;
}
}

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@@ -1,15 +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");
}
}

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@@ -2,23 +2,22 @@
public class Student {
int studentId;
String name;
static int studentCount = 0;
public void printProfile () {
System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
}
public Student(int studentId, String name) {
this.studentId = studentId;
this.name = name;
studentCount++;
}
static int getStudentCount() {
return studentCount;
public void printProfile() {
System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
}
//public static void main(String[] args) {
//Student s = new Student(1,"鈴木一郎");
//s.printProfile();
//}
}