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
18 changed files with 153 additions and 548 deletions

View File

@@ -1,8 +0,0 @@
public abstract class BaseData {
public abstract String toString();
public abstract String toCSV();
public abstract String getPrimaryKeyValue();
}

View File

@@ -4,20 +4,24 @@ 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 book1 = new Book(); Book book1 = new Book();
Book book2 = new Book("銀河鉄道の夜","宮沢賢治",500); book1.title = "タイトル未設定";
book1.author ="著者未設定";
// book.title = "吾輩は猫である"; book1.price = 0;
// 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();
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.title);
System.out.println(book2.author); System.out.println(book2.author);
System.out.println(book2.price); System.out.println(book2.price);
} }
} }

View File

@@ -1,21 +1,15 @@
public class BasicCheck2 { public class BasicCheck2 {
public static void main(String[] args) { public static void main(String[] args) {
Student student1 = new Student(1, "鈴木一郎"); Student student = 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(); student.studentId = 1;
student2.printProfile(); student.name = "鈴木一郎";
student3.printProfile();
System.out.println("現在の生徒数:"+Student.getStudentCount()+"人"); // System.out.print("学籍番号"+student.studentId);
// System.out.print("名前:" + student.name);
student.printProfile();
// student.studentId = 1;
// student.name = "鈴木一郎";
//
// student.printProfile();
} }
} }

View File

@@ -1,7 +1,11 @@
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[0] = new Item();
items[1] = new Item(); items[1] = new Item();
items[2] = new Item(); items[2] = new Item();
@@ -18,18 +22,14 @@ public class BasicCheck3 {
items[2].setPrice(60); items[2].setPrice(60);
items[2].setStock(100); items[2].setStock(100);
for (int i = 0; i < items.length; i++) {
for(int i=0;i<3;i++) {
items[i].sell(5); items[i].sell(5);
}
for (int i = 0; i < items.length; i++) {
System.out.println(items[i]); System.out.println(items[i]);
// System.out.println("合計金額:"+items[i].totalPrice());
}
} }
}
} }

View File

@@ -5,16 +5,16 @@ public class Book {
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;
} }
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;
} }
} }

View File

@@ -1,37 +0,0 @@
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

@@ -1,124 +1,23 @@
public class EmployeeData extends BaseData { public class EmployeeData {
private String idEmployee;
private String nmEmployee;
private String knEmployee;
private String mailAddress;
private String password;
private String idDepartment;
private static int empCount = 0;
static final String COMPANY_NAME = "Rhizome"; String idEmployee;
String nmEmployee;
String knEmployee;
String mailAddress;
String password;
String idDepartment;
public void showInfo() { 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 System.out.println(
public String toString() { this.idEmployee + "\t"
return getIdEmployee() + "\t" + getNmEmployee() + " " + getKnEmployee() + "\t" + getMailAddress() + this.nmEmployee + "\t"
+ "\t" + getPassword() + "\t" + getIdDepartment(); + this.knEmployee + "\t"
} + this.mailAddress + "\t"
+ this.password + "\t"
@Override + this.idDepartment
public String toCSV() { );
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress() + ","
+ getPassword() + "," + getIdDepartment();
}
@Override
public String getPrimaryKeyValue() {
return idEmployee;
}
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() {
return this.idEmployee;
}
public void setIdEmployee(String idEmployee) {
idEmployee = idEmployee.strip();
int idNum = idEmployee.length();
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;
}
}
public String getNmEmployee() {
return nmEmployee;
}
public void setNmEmployee(String nmEmployee) {
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");
} else {
this.nmEmployee = nmEmployee;
}
}
public String getKnEmployee() {
return this.knEmployee;
}
public void setKnEmployee(String knEmployee) {
this.knEmployee = knEmployee;
}
public String getMailAddress() {
return this.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;
} }
} }

View File

@@ -1,43 +1,43 @@
public class Item { public class Item {
private String name; private String name;
private int price; private int price;
private int stock; private int stock;
public void sell(int amount) {
this.setStock(this.getStock()-amount) ;
public String getName() {
return name;
} }
public int totalPrice() { public void setName(String name) {
return this.price*this.stock; this.name = name;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public int getStock() {
return stock;
}
public void setStock(int stock) {
this.stock = stock;
}
void sell(int amount) {
this.setStock(this.getStock() - amount);
} }
@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

@@ -1,202 +1,64 @@
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) {
// TODO 自動生成されたメソッド・スタブ
// BaseData employee = new EmployeeData(); EmployeeData[] Employees = new EmployeeData[5];
// BaseData[] employees = new BaseData[];
// BaseData[] allData = new BaseData();
ArrayList<BaseData> allData = new ArrayList<>();
allData.add(new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10")); Employees[0] = new EmployeeData();
// allData[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10"); Employees[1] = new EmployeeData();
// allData[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11"); Employees[2] = new EmployeeData();
// allData[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();
// allData[4] = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13"); Employees[4] = new EmployeeData();
// 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;
Scanner scanner = new Scanner(System.in); 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";
while (true) { Employees[1].idEmployee = "10001";
System.out.println("1:検索 2:登録 3:更新 4:削除 0:終了"); Employees[1].nmEmployee = "高橋準";
String usertype = scanner.nextLine(); Employees[1].knEmployee = "タカハシジュン";
Employees[1].mailAddress = "jtaka@hoge.jp";
Employees[1].password = "bbb";
Employees[1].idDepartment = "10";
//0:終了 Employees[2].idEmployee = "10002";
if (usertype.equals("0")) { Employees[2].nmEmployee = "麻枝史明";
break; Employees[2].knEmployee = "マエダフミアキ";
} Employees[2].mailAddress = "fmak@hoge.jp";
Employees[2].password = "ccc";
Employees[2].idDepartment = "11";
//1:検索 Employees[3].idEmployee = "10003";
if (usertype.equals("1")) { Employees[3].nmEmployee = "丸戸章介";
System.out.println("1:全検索 2:条件検索 それ以外:戻る"); Employees[3].knEmployee = "マルトショウスケ";
usertype = scanner.nextLine(); Employees[3].mailAddress = "marusyo@hoge.jp";
if (usertype.equals("1")) { Employees[3].password = "ddd";
for (int i = 0; i < allData.size(); i++) Employees[3].idDepartment = "12";
if (allData.get(i) instanceof EmployeeData) {
System.out.println(allData.get(i).toString());
}
} else if (usertype.equals("2")) { Employees[4].idEmployee = "10004";
System.out.println("IDを入力してください"); Employees[4].nmEmployee = "三宅武";
usertype = scanner.nextLine(); Employees[4].knEmployee = "ミヤケタケシ";
Employees[4].mailAddress = "miya@hoge.jp";
Employees[4].password = "eee";
Employees[4].idDepartment = "13";
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;
}
} // System.out.println(Employees.idEmployee);
if (result == false) { // System.out.println(Employees.nmEmployee);
System.out.println("入力された値で情報がみつかりませんでした"); // 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();
} 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[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","ミヤケタケシ","miya@hoge.jp","eee","13");
// System.out.println(employees[0].toCSV());
// System.out.println(employees[0].getPrimaryKeyValue());
// Scanner sc = new Scanner(System.in);
// //
// for (int i = 0; i < employees.length; i++) {
// System.out.println("1:検索 2:登録 3:更新 4:削除 0:終了");
// String id = sc.nextLine();
// boolean result = false;
//
// if (id.equals("0")) {
// System.out.println("システムを終了します");
// break;
// }
// if (employees[i].getPrimaryKeyValue().equals(id)) {
// result = true;
// employees[i].toString();
//
// }
//
// if (result == false) {
// System.out.println("該当する社員が見つかりませんでした");
// }
//
// }
//
// 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();
// System.out.println(employee.nmEmployee);
// System.out.println(employee.knEmployee);
// System.out.println(employee.mailAddress);
// System.out.println(employee.password);
// System.out.println(employee.idDepartment);

View File

@@ -2,23 +2,22 @@
public class Student { public class Student {
int studentId; int studentId;
String name; 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) { public Student(int studentId, String name) {
this.studentId = studentId; this.studentId = studentId;
this.name = name; this.name = name;
studentCount++;
} }
public static int getStudentCount() { public void printProfile() {
return studentCount; 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();
//}
} }

View File

@@ -1,22 +0,0 @@
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

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

View File

@@ -1,15 +0,0 @@
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

@@ -1,13 +0,0 @@
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

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

View File

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

View File

@@ -1,18 +0,0 @@
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

@@ -1,15 +0,0 @@
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");
}
}