19 Commits

Author SHA1 Message Date
06dedc4519 個人開発の修正です 2026-09-24 16:53:41 +09:00
83691c5691 2日目段階7です 2026-09-24 15:28:04 +09:00
a7ab96fe7d 3日目段階6です 2026-09-24 14:38:36 +09:00
434cf3e643 3日目段階5です 2026-09-24 13:26:05 +09:00
32a194f04c 3日目段階4です 2026-09-24 13:16:31 +09:00
f33c62d2db 3日目段階3です 2026-09-24 12:38:19 +09:00
314824d53e 1日目段階9です 2026-09-24 11:29:47 +09:00
7216162522 1日目段階7,8です 2026-09-24 09:44:50 +09:00
07a204e760 2日目段階6です 2026-09-18 12:59:07 +09:00
27bbe22c0d 2日目段階5です 2026-09-18 12:52:05 +09:00
b6f3df93ed 2日目段階2~4です 2026-09-18 11:34:35 +09:00
90ac263e9c 3日目段階2です 2026-09-16 17:07:23 +09:00
bafd218505 3日目段階1です 2026-09-16 15:54:10 +09:00
6284d105e5 2日目段階1です 2026-09-15 16:40:14 +09:00
04dfa16363 1日目段階6です 2026-09-15 15:38:24 +09:00
75e148e07d 1日目段階5です。 2026-09-15 14:42:05 +09:00
7801e6afa8 一日目の段階4です。 2026-09-15 14:31:38 +09:00
910a102d72 段階2です。 2026-09-14 15:21:51 +09:00
e7f0dfff43 段階1です。 2026-09-14 15:00:59 +09:00
20 changed files with 248 additions and 247 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>

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

@@ -2,9 +2,7 @@
public abstract class BaseData { public abstract class BaseData {
public abstract String toString(); public abstract String toString();
public abstract String toCSV(); public abstract String toCSV();
public abstract String getPrimaryKeyValue(); public abstract String getPrimaryKeyValue();
} }

View File

@@ -6,8 +6,12 @@ public class BasicCheck1 {
Book book1 = new Book(); Book book1 = new Book();
Book book2 = new Book("銀河鉄道の夜", "宮沢賢治", 500); 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); // book.title = "吾輩は猫である";
System.out.println(book2.title + "\n" + book2.author + "\n" + book2.price); // book.author = "夏目漱石";
// book.price = 800;
System.out.println(book1.title +"\n"+ book1.author +"\n"+ book1.price);
System.out.println(book2.title +"\n"+ book2.author +"\n"+ book2.price);
} }

View File

@@ -1,23 +1,26 @@
public class BasicCheck2 { public class BasicCheck2 {
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
Student student1 = new Student(1, "鈴木一郎"); Student student1 = new Student(1, "鈴木一郎");
// student1.studentId = 1;
// student1.name = "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();
Student.getStudentCount();{
Student.getStudentCount(); System.out.println("現在の生徒数:" + Student.studentCount + "人");
System.out.println("現在の生徒数:" + Student.getStudentCount() + "人"); }
} }
} }

View File

@@ -1,31 +1,53 @@
public class BasicCheck3 { public class BasicCheck3 {
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
Item[] items = new Item[3]; Item[] items = new Item[3];
items[0] = new Item();
items[1] = new Item();
items[2] = new Item();
items[0].setName("ノート"); Item item0 = new Item();
items[1].setName("消しゴム"); Item item1 = new Item();
items[2].setName("鉛筆"); Item item2 = new Item();
items[0].setPrice(120); items[0] = item0;
items[1].setPrice(80); items[1] = item1;
items[2].setPrice(60); items[2] = item2;
items[0].setStock(50); item0.setName("ノート");
items[1].setStock(30); item0.setPrice(120);
items[2].setStock(100); item0.setStock(50);
item1.setName("消しゴム");
item1.setPrice(80);
item1.setStock(30);
item2.setName("鉛筆");
item2.setPrice(60);
item2.setStock(100);
// item1.setName = "ノート";
// item1.price = 120;
// item1.stock = 50;
//
// Item item2 = new Item();
//
// item2.name = "消しゴム";
// item2.price = 80;
// item2.stock = 30;
//
// Item item3 = new Item();
//
// item3.name = "鉛筆";
// item3.price = 60;
// item3.stock = 100;
for (int i = 0; i < items.length; i++) { for (int i = 0; i < items.length; i++) {
items[i].sell(5); 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(items[i]);
// System.out.println();
} }
} }
} }

View File

@@ -1,14 +1,13 @@
public class Book { public class Book {
public String title;
String title; public String author;
String author; public int price;
int price;
public Book() { public Book() {
this.title = "タイトル未設定"; title = "タイトル未設定";
this.author = "著者未設定"; author = "著者未設定";
this.price = 0; price = 0;
} }
@@ -18,5 +17,4 @@ public class Book {
this.price = price; this.price = price;
} }
} }

View File

@@ -5,6 +5,7 @@ public class Circle extends Shape {
public Circle(double radius) { public Circle(double radius) {
super("円"); super("円");
this.radius = radius; this.radius = radius;
} }
@Override @Override
@@ -15,6 +16,7 @@ public class Circle extends Shape {
@Override @Override
public void showInfo() { public void showInfo() {
super.showInfo(); super.showInfo();
System.out.println("(半径:" + this.radius + ")"); System.out.println("(半径:" + this.radius + ")");
} }
} }

View File

@@ -1,8 +1,10 @@
public class Day3Check2 { public class Day3Check2 {
public static void main(String[] args) { public static void main(String[] args) {
Rectangle rect = new Rectangle(3, 4); // TODO 自動生成されたメソッド・スタブ
rect.showInfo(); Rectangle Rectangle = new Rectangle(3, 4);
Rectangle.showInfo();
Greeting greeting = new JapaneseGreeting(); Greeting greeting = new JapaneseGreeting();
System.out.println(greeting.hello()); System.out.println(greeting.hello());

View File

@@ -1,10 +1,14 @@
public class Day3Check3 { public class Day3Check3 {
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
Shape shape1 = new Circle(2); Shape shape1 = new Circle(2);
shape1.showInfo(); shape1.showInfo();
Shape shape2 = new Rectangle(3, 4); Shape shape2 = new Rectangle(3, 4);
shape2.showInfo(); shape2.showInfo();
} }

View File

@@ -1,8 +1,9 @@
public class Day3Check1 { public class DayCheck1 {
public static void main(String[] args) { public static void main(String[] args) {
Circle radius = new Circle(2); Circle radius = new Circle(2);
radius.showInfo(); radius.showInfo();
} }
} }

View File

@@ -1,14 +1,13 @@
public class DepartmentData extends BaseData { public class DepartmentData extends BaseData {
private String idDepartment, nmDepartment; private String idDepartment;
private String nmDepartment;
public DepartmentData(String idDepartment,String nmDepartment) { public DepartmentData(String idDepartment, String nmDepartment) {
this.setIdDepartment(idDepartment); setIdDepartment(idDepartment);
this.setNmDepartment(nmDepartment); setNmDepartment(nmDepartment);
return;
} }
public String getIdDepartment() { public String getIdDepartment() {
return idDepartment; return idDepartment;
} }
@@ -29,11 +28,12 @@ public class DepartmentData extends BaseData {
public String toString() { public String toString() {
return getIdDepartment() + "\t" + getNmDepartment(); return getIdDepartment() + "\t" + getNmDepartment();
} }
public String toCSV() { public String toCSV() {
return getIdDepartment() + "," + getNmDepartment(); return getIdDepartment() + "," + getNmDepartment();
} }
public String getPrimaryKeyValue() { public String getPrimaryKeyValue() {
return getIdDepartment(); return getIdDepartment();
} }
} }

View File

@@ -6,33 +6,21 @@ public class EmployeeData extends BaseData {
private String mailAddress; private String mailAddress;
private String password; private String password;
private String idDepartment; private String idDepartment;
private static int empCount = 0; private static int empCount = 0;
static int getempCount() { EmployeeData() {
return empCount; empCount = empCount + 1;
} }
public EmployeeData() { EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
empCount++;
}
static int getEmpCount() {
return empCount;
}
public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
String idDepartment) { String idDepartment) {
this.setIdEmployee(idEmployee); setIdEmployee(idEmployee);
this.setNmEmployee(nmEmployee); setNmEmployee(nmEmployee);
this.setKnEmployee(knEmployee); setKnEmployee(knEmployee);
this.setMailAddress(mailAddress); setMailAddress(mailAddress);
this.setPassword(password); setPassword(password);
this.setIdDepartment(idDepartment); setIdDepartment(idDepartment);
empCount++; empCount = empCount + 1;
} }
public String getIdEmployee() { public String getIdEmployee() {
@@ -41,10 +29,6 @@ public class EmployeeData extends BaseData {
public void setIdEmployee(String idEmployee) { public void setIdEmployee(String idEmployee) {
this.idEmployee = 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() { public String getNmEmployee() {
@@ -52,12 +36,16 @@ public class EmployeeData extends BaseData {
} }
public void setNmEmployee(String nmEmployee) { public void setNmEmployee(String nmEmployee) {
// 2日目段階8
// String stripped = nmEmployee.strip();
// int length = stripped.length();
// if (nmEmployee == null) {
// System.out.println("社員名が空のため設定できませんでした");
// }
// if (length == 0) {
// System.out.println("社員名が空のため設定できませんでした");
// } else
this.nmEmployee = 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() { public String getKnEmployee() {
@@ -92,30 +80,36 @@ public class EmployeeData extends BaseData {
this.idDepartment = idDepartment; this.idDepartment = idDepartment;
} }
@Override public static int getEmpCount() {
public String toString() { return empCount;
}
return (this.getIdEmployee() + "\t" + this.getNmEmployee() + "\t" + this.getKnEmployee() + "\t"
+ this.getMailAddress() + "\t" + this.getPassword() + "\t" + this.getIdDepartment());
public static void setEmpCount(int empCount) {
EmployeeData.empCount = empCount;
} }
@Override @Override
public String toString() {
return getIdEmployee() + "\t" + getNmEmployee() + "\t" + getKnEmployee() + "\t" + getMailAddress()
+ "\t" + getPassword() + "\t" + getIdDepartment();
}
// public boolean isMatchId(String id) {
//
// return idEmployee.equals(id);
//
// }
public String toCSV() { public String toCSV() {
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + "," return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress()
+ getPassword() + "," + getIdDepartment(); + "," + getPassword() + "," + getIdDepartment();
} }
public String getPrimaryKeyValue() { public String getPrimaryKeyValue() {
return getIdEmployee(); return idEmployee;
} }
public boolean isMatchId(String id) { public static int empCount() {
if (id == null || this.idEmployee == null) { return empCount;
return false;
} }
return this.idEmployee.equals(id);
}
} }

View File

@@ -1,6 +1,4 @@
public interface Greeting { public interface Greeting {
String hello(); String hello();
} }

View File

@@ -4,18 +4,17 @@ public class Item {
private int price; private int price;
private int stock; private int stock;
// void sell(int amount) {
// this.stock = this.stock - amount;
public void sell(int amount) { public void sell(int amount) {
this.setStock(this.getStock() - amount); setStock(this.getStock() - amount);
}
public int totalPrice() {
return price * stock;
} }
@Override @Override
public String toString() { public String toString() {
return (getName() + " " + getPrice() + "円 (残り" + getStock() + "個"); String output = getName() + " " + getPrice() + "円 (残り" + getStock() + "個)";
return output;
} }
public String getName() { public String getName() {

View File

@@ -1,7 +1,9 @@
public class JapaneseGreeting implements Greeting { public class JapaneseGreeting implements Greeting {
@Override @Override
public String hello() { public String hello() {
// TODO 自動生成されたメソッド・スタブ
return "こんにちは"; return "こんにちは";
} }

View File

@@ -1,130 +1,79 @@
import java.util.Scanner;
public class Main { public class Main {
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
// while (true) { 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)"); System.out.println("検索したい社員IDを入力してください(終了したい場合は0)");
// String input = scanner.nextLine(); Scanner scanner = new Scanner(System.in);
String id = scanner.nextLine();
boolean bo = false;
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]; 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"); BaseData employee = 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 = ""; BaseData employee1 = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
//
// 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; BaseData employee2 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
// 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) { BaseData employee3 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
// countt++;
// }
// System.out.println("社員のデータ:" + count + "件"); BaseData employee4 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp,eee", "eee", "13");
// System.out.println("部署のデータ:" + countt + "件");
// System.out.println(allData[i]); allData[0] = employee;
allData[1] = employee1;
allData[2] = employee2;
allData[3] = employee3;
allData[4] = employee4;
// employees[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"); BaseData dept = new DepartmentData("10", "役員");
// employees[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10"); BaseData dept1 = new DepartmentData("11", "人事・総務部");
// employees[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11"); BaseData dept2 = new DepartmentData("12", "経理部");
// employees[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12"); BaseData dept3 = new DepartmentData("13", "システム開発事業部");
// employees[4] = new EmployeeData("10004", "三宅武", "ミタケタケシ", "miya@hoge.jp", "eee", "13"); BaseData dept4 = new DepartmentData("14", "教育事業部");
// // BaseData dept5 = new DepartmentData("15", "営業企画部");
// for (int i = 0; i < employees.length; i++) { allData[5] = dept;
// System.out.println(allData[i]); allData[6] = dept1;
// } allData[7] = dept2;
// System.out.println("現在の社員データ件数:" + EmployeeData.getEmpCount() + "件"); allData[8] = dept3;
allData[9] = dept4;
allData[10] = dept5;
if (allData[0] instanceof EmployeeData) { // for (int i = 0; i < allData.length; i++) {
EmployeeData sampleEmp = (EmployeeData) allData[0]; // System.out.println(allData[i]);
sampleEmp.setNmEmployee(""); // }
} // 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.setIdEmployee("");
}
// String serchId1 = "10002"; for (int i = 0; i < allData.length; i++) {
// 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]); // System.out.println(employees[i]);
// break; if (allData[i].getPrimaryKeyValue().equals(id)) {
// bo = true;
// } System.out.println(allData[i]);
// }
// 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.toCSV());
// System.out.println(employee.getPrimaryKeyValue()); // System.out.println(employee.getPrimaryKeyValue());
} }
// employees[i].isMatchId("10002");
// employees[i].isMatchId("99999");
continue;
}
if (bo == false && !id.equals("0")) {
System.out.println("該当する社員が見つかりませんでした");
}
if (id.equals("0")) {
System.out.println("システムを終了します");
break;
}
}
}
} }

View File

@@ -1,12 +1,13 @@
public class Rectangle extends Shape{ public class Rectangle extends Shape {
private double width; private double width;
private double height; private double height;
public Rectangle(double width, double height) { public Rectangle(double width, double height) {
super("四角形"); super("四角形");
this.width = width;
this.height = height; this.height = height;
this.width = width;
} }
@Override @Override

View File

@@ -3,6 +3,7 @@ public abstract class Shape {
private String name; private String name;
public Shape(String name) { public Shape(String name) {
this.name = name; this.name = name;
} }
@@ -11,5 +12,4 @@ public abstract class Shape {
public void showInfo() { public void showInfo() {
System.out.println(this.name + "の面積は" + this.area() + "です"); System.out.println(this.name + "の面積は" + this.area() + "です");
} }
} }

View File

@@ -2,23 +2,24 @@
public class Student { public class Student {
int studentId; int studentId;
String name; String name;
static int studentCount = 0; 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++; studentCount++;
} }
static int getStudentCount() { Student(int studentId, String name) {
this.studentId = studentId;
this.name = name;
}
public static int getStudentCount() {
return studentCount; return studentCount;
} }
void printProfile() {
System.out.println("学籍番号:" + this.studentId + " 名前:" + this.name);
}
} }