5 Commits

Author SHA1 Message Date
41334b8584 3日分のミッション課題です。 2026-09-24 15:27:32 +09:00
ff69e07219 9/16のミッション課題1~3です 2026-09-16 15:01:43 +09:00
75eb127faa 段階1です 2026-09-15 16:38:52 +09:00
1b37712bc8 段階6までです 2026-09-15 15:46:38 +09:00
a52f78be66 段階4までです 2026-09-15 15:33:43 +09:00
26 changed files with 431 additions and 666 deletions

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@@ -1,6 +0,0 @@
<?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
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@@ -25,4 +25,3 @@ hs_err_pid*
replay_pid* replay_pid*
/.metadata/ /.metadata/
/bin/

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@@ -1,17 +0,0 @@
<?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

@@ -1,10 +1,9 @@
package day3Keisho;
public abstract class BaseData { public abstract class BaseData {
//3-4
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

@@ -2,25 +2,27 @@
public class BasicCheck1 { 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 //1-1
//Book book = new Book(); // Book book = new Book();
// 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(book.title);
// System.out.println(book.author);
// System.out.println(book.price);
//1-1
//2-1
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); 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

@@ -1,18 +1,24 @@
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 //1-2
// Student student = new Student(); // Student student = new Student();
// student.studentId=1; // student.studentId=1;
// student.name="鈴木一郎"; // 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");
Student student2 = new Student(2, "田中花子");
Student student3 = new Student(3, "佐藤次郎");
student1.printProfile(); student1.printProfile();
Student student2 = new Student(2, "田中花子");
student2.printProfile(); student2.printProfile();
Student student3 = new Student(3, "佐藤次郎");
student3.printProfile(); student3.printProfile();
System.out.println("現在の生徒数は:"+Student.getStudentCount()); System.out.println("現在の生徒数:" + Student.getStudentCount() + "人");
//2-3
} }
} }

View File

@@ -1,56 +1,19 @@
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 //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[0].name = "ノート"; items[2] = new Item("鉛筆", 60, 100);
// items[0].price = 120;
// items[0].stock = 50;
//
// items[1] = new Item();
// items[1].name = "消しゴム";
// items[1].price = 80;
// items[1].stock = 30;
//
// items[2] = new Item();
// items[2].name = "鉛筆";
// items[2].price = 60;
// items[2].stock = 100;
items[0] = new Item();
items[0].setName("ノート");
items[0].setPrice(120);
items[0].setStock(50);
items[1] = new Item();
items[1].setName("消しゴム");
items[1].setPrice(80);
items[1].setStock(30);
items[2] = new Item();
items[2].setName("鉛筆");
items[2].setPrice(60);
items[2].setStock(100);
// Item[] items = {
// new Item("ノート", 120, 50),
// new Item("消しゴム", 80, 30), //this is also fine but the question is make items[i].setName(...),so we should be change
// new Item("鉛筆", 60, 100)
// };
for (int i = 0; i < items.length; i++) {
items[i].sell(5);
System.out.println(items[i]);
}
for (int i = 0; i < 3; i++) {
items[i].sell(5);
//2-2
System.out.println(items[i].toString());
//2-2
}
//1-3
} }
} }

View File

@@ -1,20 +1,22 @@
public class Book { public class Book {
//1-1
String title; String title;
String author; String author;
int price; int price;
public Book () { //1-1
this.title="タイトル未設定";
this.author = "著者未設定"; //2-1
this.price=500; public Book() {
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.title= title; this.author = author;
this.author= author; this.price = price;
this.price= price;
} }
//2-1
} }

View File

@@ -1,22 +1,20 @@
package day3Keisho;
public class Circle extends Shape { public class Circle extends Shape {
private double radius; private double radius;
public Circle (double radius) { public Circle(double radius) {
super("円"); super("円");
this.radius= radius; this.radius = radius;
} }
@Override @Override
public double area() { public double area() {
return Math.PI * radius * radius; return Math.PI * radius * radius;
} }
@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

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

View File

@@ -1,15 +1,11 @@
package day3Keisho;
public class Day3Check2 { public class Day3Check2 {
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 Rectangle rectangle = new Rectangle(3, 4);
Rectangle rect = new Rectangle(3.0, 4.0); rectangle.showInfo();
rect.showInfo();
Greeting greeting = new JapaneseGreeting(); Greeting greeting = new JapaneseGreeting();
System.out.println(greeting.hello()); System.out.println(greeting.hello());
} }
} }

View File

@@ -1,14 +1,12 @@
package day3Keisho;
public class Day3Check3 { public class DayCheck3 {
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 +1,29 @@
package day3Keisho;
public class DepartmentData extends BaseData { public class DepartmentData extends BaseData {
//3-6
private String idDepartment; private String idDepartment;
private String nmDepartment; 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() { public String getIdDepartment() {
return idDepartment; return idDepartment;
@@ -19,23 +40,5 @@ public class DepartmentData extends BaseData {
public void setNmDepartment(String nmDepartment) { public void setNmDepartment(String nmDepartment) {
this.nmDepartment = nmDepartment; this.nmDepartment = nmDepartment;
} }
//3-6
@Override
public String toString() {
// TODO 自動生成されたメソッド・スタブ
return getIdDepartment() + "\t" + getNmDepartment();
}
@Override
public String toCSV() {
// TODO 自動生成されたメソッド・スタブ
return getIdDepartment() + "," + getNmDepartment();
}
@Override
public String getPrimaryKeyValue() {
// TODO 自動生成されたメソッド・スタブ
return getIdDepartment();
}
} }

View File

@@ -1,23 +1,104 @@
public class EmployeeData { public class EmployeeData extends BaseData {
private String idEmployee; //1-4
private String nmEmployee; private String IdEmployee, nmEmployee, knEmployee, mailAddress, password, idDepartment;
private String knEmployee; //1-4 + 2-4
private String mailAddress;
private String password;
private String idDepartment;
//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
public String toString() {
// System.out.println(getIdEmployee() + "\t" + getNmEmployee() + "\t" + getKnEmployee() + "\t" + getMailAddress()
// + "\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() {
return IdEmployee;
}
//3-4
//1-7
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() {
//2-7
empCount++;
//2-7
}
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);
//2-7
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 IdEmployee;
} }
public void setIdEmployee(String idEmployee) { public void setIdEmployee(String idEmployee) {
// null ဖြစ်နေသလား (သို့မဟုတ်) ရှေ့နောက် Space များကို ဖယ်ရှားလိုက်လျှင် စာသားအလွတ် ဖြစ်သွားသလား စစ်ဆေးခြင်း //2-9
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"); 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 { } else {
this.idEmployee = idEmployee; this.IdEmployee = idEmployee;
} }
//2-9
} }
public String getNmEmployee() { public String getNmEmployee() {
@@ -25,13 +106,15 @@ public class EmployeeData {
} }
public void setNmEmployee(String nmEmployee) { public void setNmEmployee(String nmEmployee) {
// null ဖြစ်နေသလား (သို့မဟုတ်) ရှေ့နောက် Space များကို ဖယ်ရှားလိုက်လျှင် စာသားအလွတ် ဖြစ်သွားသလား စစ်ဆေးခြင်း //2-8
if (nmEmployee == null || nmEmployee.trim().isEmpty()) { 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"); System.out.println("社員名が空のため設定できませんでした");
return;
} else { } else {
this.nmEmployee = nmEmployee; this.nmEmployee = nmEmployee;
} }
//2-8
} }
public String getKnEmployee() { public String getKnEmployee() {
@@ -65,44 +148,5 @@ public class EmployeeData {
public void setIdDepartment(String idDepartment) { public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment; this.idDepartment = idDepartment;
} }
//2-4
private static int empCount = 0;
public void showInfo() {
System.out.println(this.idEmployee + "\t" + this.nmEmployee + this.knEmployee + this.mailAddress + this.password
+ this.idDepartment);
// System.out.println("社員ID: " + this.getIdEmployee());
// System.out.println("社員氏名: " + this.getNmEmployee());
// System.out.println("フリガナ: " + this.getKnEmployee());
// System.out.println("メールアドレス: " + this.getMailAddress());
// System.out.println("パスワード: " + this.getPassword());
// System.out.println("部署ID: " + this.getIdDepartment());
}
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 static int getEmpCount() {
return empCount;
}
// boolean isMatchId(String id) { //stept 7
// return this.idEmployee.equals(id);
//
// }
} }

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@@ -1,6 +1,3 @@
package day3Keisho;
public interface Greeting { public interface Greeting {
String hello(); String hello();
} }

View File

@@ -1,15 +1,28 @@
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 Item(String name, int price, int stock) {
// this.name = name; this.name = name;
// this.price = price; this.price = price;
// this.stock = stock; this.stock = stock;
// }
// }
void sell(int amount) {
// this.stock = this.stock - amount;
this.setStock(this.getStock() - amount); //2-2
//System.out.println(name + " " + price + "円 残り" + stock + "個");
}
//1-3
//2-2
@Override
public String toString() {
return getName() + "" + getPrice() + "円(残り" + getStock() + "個)";
}
public String getName() { public String getName() {
return name; return name;
@@ -34,15 +47,5 @@ public class Item {
public void setStock(int stock) { public void setStock(int stock) {
this.stock = stock; this.stock = stock;
} }
//2-2
public void sell(int amount) {
this.stock = this.stock - amount;
}
@Override
public String toString() {
return getName() + " " + getPrice() + "円 (残り" + getStock() + "個)";
}
} }

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@@ -1,11 +1,7 @@
package day3Keisho;
public class JapaneseGreeting implements Greeting { public class JapaneseGreeting implements Greeting {
@Override @Override
public String hello() { public String hello() {
return "こんにちは"; return "こんにちは";
} }
} }

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@@ -1,147 +1,168 @@
//import java.util.Scanner;//1-8
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 //1-8
EmployeeData[] employees = new EmployeeData[5]; // Scanner scanner = new Scanner(System.in);
EmployeeData employee1 = new EmployeeData(); // //1-9
employee1.setIdEmployee("10000"); // boolean end = false;
employee1.setNmEmployee("山田太郎"); // while (!end) {
employee1.setKnEmployee("ヤマダタツヤ"); // //1-9
employee1.setMailAddress("yamada@hoge.jp"); // 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)");
employee1.setPassword("aaa"); // String num = scanner.nextLine().strip();
employee1.setIdDepartment("10"); // boolean found = false;
//1st person //1-8
//EmployeeData employee = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10"); //1-4
// employees[0] = new EmployeeData(); // BaseData employee = new EmployeeData();
// employees[0].idEmployee = "10000"; // employee.setIdEmployee("10000");
// employees[0].nmEmployee = "山田龍也"; // employee.setNmEmployee("山田龍也");
// employees[0].knEmployee = "ヤマダタツヤ"; // employee.setKnEmployee("ヤマダタツヤ");
// employees[0].mailAddress = "yamada@hoge.jp"; // employee.setMailAddress("yamada@hoge.jp");
// employees[0].password = "aaa"; // employee.setPassword("aaa");
// employees[0].idDepartment = "10"; // employee.setIdDepartment("10");
EmployeeData employee2 = new EmployeeData();
employee2.setIdEmployee("10001");
employee2.setNmEmployee("高橋準");
employee2.setKnEmployee("タカハシジュン");
employee2.setMailAddress("jtaka@hoge.jp");
employee2.setPassword("bbb");
employee2.setIdDepartment("10");
// //2nd person
// employees[1] = new EmployeeData();
// 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";
// //3rd person
EmployeeData employee3 = new EmployeeData();
employee3.setIdEmployee("10002");
employee3.setNmEmployee("麻枝史明");
employee3.setKnEmployee("マエダフミアキ");
employee3.setMailAddress("fmak@hoge.jp");
employee3.setPassword("ccc");
employee3.setIdDepartment("11");
// employees[2] = new EmployeeData();
// 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";
EmployeeData employee4 = new EmployeeData();
employee4.setIdEmployee("10003");
employee4.setNmEmployee("丸戸章介");
employee4.setKnEmployee("マルトショウスケ");
employee4.setMailAddress("marusyo@hoge.jp");
employee4.setPassword("ddd");
employee4.setIdDepartment("12");
// //4th person
// employees[3] = new EmployeeData();
// 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";
EmployeeData employee5 = new EmployeeData();
employee5.setIdEmployee("10004");
employee5.setNmEmployee("三宅武");
employee5.setKnEmployee("ミヤケタケシ");
employee5.setMailAddress("miya@hoge.jp");
employee5.setPassword("eee");
employee5.setIdDepartment("13");
// //5th pe5rson
// employees[4] = new EmployeeData();
// 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";
// stept6
// for (int i = 0; i < employees.length; i++) {
// employees[i].showInfo();
// }
employee1.showInfo();
employee2.showInfo();
employee3.showInfo();
employee4.showInfo();
employee5.showInfo();
//stept 7 // System.out.println(employee.getIdEmployee());
//System.out.println("10002 を検索します"); // System.out.println(employee.getNmEmployee());
// System.out.println(employees[2].isMatchId("10002")); // System.out.println(employee.getKnEmployee());
// // System.out.println(employee.getMailAddress());
// System.out.println("99999 を検索します"); // System.out.println(employee.getPassword());
// System.out.println(employees[2].isMatchId("99999")); // System.out.println(employee.getIdDepartment());
//1-4
//stept 5 //3-4
// employee.showInfo(); // System.out.println(employee.toCSV());
// stept6 // System.out.println(employee.getPrimaryKeyValue());
//3-4
// System.out.println(employee.idEmployee); //2-5
// System.out.println(employee.nmEmployee); // EmployeeData emp1 = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
// System.out.println(employee.knEmployee); // EmployeeData emp2 = new EmployeeData("10001", "高橋準", "タカハシジュン", "Jtaka@hoge.jp", "bbb", "11");
// System.out.println(employee.mailAddress); // EmployeeData emp3 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "12");
// System.out.println(employee.password); // EmployeeData emp4 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "13");
// System.out.println(employee.idDepartment); // EmployeeData emp5 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "14");
// Scanner scan = new Scanner(System.in); //2-5
// while (true) {
// 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)"); //1-6
// BaseData[] employee = new EmployeeData[5];
// //stept 8 employee[0] = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
// employee[1] = new EmployeeData("10001", "高橋準", "タカハシジュン", "Jtaka@hoge.jp", "bbb", "10");
// //System.out.println("検索したい社員IDを入力してください"); employee[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
// String serchId = scan.nextLine(); employee[3] = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
// employee[4] = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "13");
// if (serchId.equals("0")) { //stept 9 //1-5
// System.out.println("システムを終了します"); //1-6
// break; //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
// boolean found = false; //←if it haven't this boolean , they can't be decided true or false, so we should be make boolan name (found) //1-7
for (int i = 0; i < employees.length; i++) { //3-5
// System.out.println(employee[2].getPrimaryKeyValue().equals("10002"));
// System.out.println(employee[2].getPrimaryKeyValue().equals("99999"));
//3-5
//1-7
} //1-8
System.out.println("現在社員データ数:" + EmployeeData.getEmpCount() + "件"); // for (int i = 0; i < employee.length; i++) {
// if (employees[i].isMatchId(serchId)) { // if (num.equals(employee[i].getIdEmployee())) {
// employees[i].showInfo(); // //2-6
// System.out.println(employee[i]);
// //2-6
//// employee[i].showInfo();
// found = true; // found = true;
// break; // break;
// } else if (num.equals("0")) {
// System.out.println("システムを終了します");
// return;
// } // }
//
// } // }
// if (!found) { // if (!found) {
// System.out.println("該当する社員が見つかりませんでした"); // System.out.println("該当する社員が見つかりませんでした");
// } // }
System.out.println("--- 空文字のテスト ---"); //1-8 isMatchIdメソッドを使っていない
employee1.setNmEmployee(""); // စာသားအလွတ် // }
employee1.setIdEmployee(" "); // Space သီးသန့်
employee1.setNmEmployee(null); // null တန်ဖိုး
//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");
allData[5] = dept;
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
for (int i = 0; i < 11; i++) {
if (allData[i] instanceof EmployeeData) {
EmployeeData emp = (EmployeeData) allData[i];
System.out.println(emp.getMailAddress());
}
}
//3-8
//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
} }
//scan.close();
} }

16
em-oop/src/Rectangle.java Normal file
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@@ -0,0 +1,16 @@
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;
}
}

14
em-oop/src/Shape.java Normal file
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@@ -0,0 +1,14 @@
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

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

View File

@@ -1,13 +0,0 @@
package day3Keisho;
public class Day3Check1 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
Circle circle = new Circle(2.0);
circle.showInfo();
}
}

View File

@@ -1,99 +0,0 @@
package day3Keisho;
public class EmployeeData extends BaseData {
private String idEmployee;
private String nmEmployee;
private String knEmployee;
private String mailAddress;
private String password;
private String idDepartment;
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;
}
public EmployeeData() {
}
public String getIdEmployee(String idEmployee) {
return idEmployee;
}
public void setIdEmployee(String idEmployee) {
// null ဖြစ်နေသလား (သို့မဟုတ်) ရှေ့နောက် Space များကို ဖယ်ရှားလိုက်လျှင် စာသားအလွတ် ဖြစ်သွားသလား စစ်ဆေးခြင်း
if (idEmployee == null || idEmployee.trim().isEmpty()) {
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) {
// null ဖြစ်နေသလား (သို့မဟုတ်) ရှေ့နောက် Space များကို ဖယ်ရှားလိုက်လျှင် စာသားအလွတ် ဖြစ်သွားသလား စစ်ဆေးခြင်း
if (nmEmployee == null || nmEmployee.trim().isEmpty()) {
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 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 idEmployee + "\t" + nmEmployee + "\t" + knEmployee + "\t" + mailAddress + "\t" + password + "\t" + idDepartment;
}
@Override
public String toCSV() {
return idEmployee + "," + nmEmployee + "," + knEmployee + "," + mailAddress + "," + password + "," + idDepartment;
}
@Override
public String getPrimaryKeyValue() {
return idEmployee;
}
}

View File

@@ -1,126 +0,0 @@
package day3Keisho;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//EmployeeData[] employees = new EmployeeData[5];
BaseData[] employees = new BaseData[5];
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());
System.out.println("10002 を検索します");
System.out.println(employees[2].getPrimaryKeyValue().equals("10002"));
BaseData[] allData = new BaseData[11];
for (int i = 0; i < employees.length; i++) {
allData[i] = employees[i];
}
DepartmentData dept1 = new DepartmentData();
dept1.setIdDepartment("10");
dept1.setNmDepartment("役員");
allData[5] = dept1;
DepartmentData dept2 = new DepartmentData();
dept2.setIdDepartment("11");
dept2.setNmDepartment("人事・総務部");
allData[6] = dept2;
DepartmentData dept3 = new DepartmentData();
dept3.setIdDepartment("12");
dept3.setNmDepartment("経理部");
allData[7] = dept3;
DepartmentData dept4 = new DepartmentData();
dept4.setIdDepartment("13");
dept4.setNmDepartment("システム開発事業部");
allData[8] = dept4;
DepartmentData dept5 = new DepartmentData();
dept5.setIdDepartment("14");
dept5.setNmDepartment("教育事業部");
allData[9] = dept5;
DepartmentData dept6 = new DepartmentData();
dept6.setIdDepartment("15");
dept6.setNmDepartment("営業企画部");
allData[10] = dept6;
for (BaseData data : allData) {
System.out.println(data.toString());
}
//Stept 7
int employeeCount =0;
int departmentCount =0;
for(BaseData data: allData) {
if(data instanceof EmployeeData) { //instanceof is looking for inside
employeeCount++;
}else if(data instanceof DepartmentData) {
departmentCount++;
}
}
System.out.println("社員データ:" + employeeCount + "件");
System.out.println("部署データ:" + departmentCount + "件");
//Strpt 8
for (BaseData data : allData) {
if (data instanceof EmployeeData) {
// EmployeeData သို့ Cast လုပ်ခြင်း
EmployeeData emp = (EmployeeData) data;
System.out.println(emp.getMailAddress());
}
}
// Stept 9
Scanner scanner = new Scanner(System.in);
System.out.print("検索したい部署名を入力してください: ");
String targetDepartmentName = scanner.nextLine();
String targetDepartmentId = null;
// ၁။ ဌာနနာမည်မှတစ်ဆင့် ဌာန ID (idDepartment) ကို ရှာခြင်း
for (BaseData data : allData) {
if (data instanceof DepartmentData) {
DepartmentData dept = (DepartmentData) data;
if (targetDepartmentName.equals(dept.getNmDepartment())) {
targetDepartmentId = dept.getIdDepartment();
break;
}
}
}
// ၂။ ဌာန ID တူညီသည့် ဝန်ထမ်းများကို ရှာဖွေပြီး ထုတ်ပြခြင်း
if (targetDepartmentId != null) {
boolean found = false;
for (BaseData data : allData) {
if (data instanceof EmployeeData) {
EmployeeData emp = (EmployeeData) data;
if (targetDepartmentId.equals(emp.getIdDepartment())) {
System.out.println(emp.getNmEmployee() + "\t" + emp.getMailAddress());
found = true;
}
}
}
if (!found) {
System.out.println("その部署に所属する社員は見つかりませんでした");
}
} else {
System.out.println("該当する部署が見つかりませんでした");
}
scanner.close();
}
}

View File

@@ -1,21 +0,0 @@
package day3Keisho;
public class Rectangle extends Shape {
private double width;
private double height;
public Rectangle(double width,double height) {
super("四角形");
this.height=height;
this.width=width;
}
@Override
public double area() {
// TODO 自動生成されたメソッド・スタブ
//super.showInfo();
return width*height;
}
}

View File

@@ -1,22 +0,0 @@
package day3Keisho;
//public class Shape { //stept 1
public abstract class Shape{ //stept 2
private String name;
public Shape(String name) {
this.name = name;
}
public abstract double area(); //stept 2
// public double area() { //stept 1
// return 0.0;
//
// }
public void showInfo() {
System.out.println(this.name + "の面積は" + this.area() + "です");
}
}