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
22 changed files with 285 additions and 364 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>

1
.gitignore vendored
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@@ -25,3 +25,4 @@ hs_err_pid*
replay_pid* replay_pid*
/.metadata/ /.metadata/
/bin/

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>

View File

@@ -1,9 +1,8 @@
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();
} }

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@@ -2,27 +2,17 @@
public class BasicCheck1 { public class BasicCheck1 {
public static void main(String[] args) { public static void main(String[] args) {
//1-1
// Book book = 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.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;
//
// System.out.println(book.title);
// System.out.println(book.author);
// System.out.println(book.price);
//1-1
//2-1 System.out.println(book1.title +"\n"+ book1.author +"\n"+ book1.price);
Book book1 = new Book(); System.out.println(book2.title +"\n"+ book2.author +"\n"+ book2.price);
System.out.println(book1.title);
System.out.println(book1.author);
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.author);
System.out.println(book2.price);
//2-1
} }
} }

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@@ -2,23 +2,25 @@
public class BasicCheck2 { public class BasicCheck2 {
public static void main(String[] args) { public static void main(String[] args) {
//1-2 // TODO 自動生成されたメソッド・スタブ
// 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.studentId = 1;
// student1.name = "鈴木一郎";
student1.printProfile(); student1.printProfile();
Student student2 = new Student(2, "田中花子"); Student student2 = new Student(2, "田中花子");
student2.printProfile(); student2.printProfile();
Student student3 = new Student(3, "佐藤次郎"); Student student3 = new Student(3, "佐藤次郎");
student3.printProfile(); student3.printProfile();
System.out.println("現在の生徒数:" + Student.getStudentCount() + "人"); Student.getStudentCount();{
//2-3 System.out.println("現在の生徒数:" + Student.studentCount + "人");
} }
}
} }

View File

@@ -1,19 +1,53 @@
public class BasicCheck3 { public class BasicCheck3 {
public static void main(String[] args) { public static void main(String[] args) {
//1-3 // 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("ノート", 120, 50);
items[1] = new Item("消しゴム", 80, 30);
items[2] = new Item("鉛筆", 60, 100);
for (int i = 0; i < 3; i++) { Item item0 = new Item();
Item item1 = new Item();
Item item2 = new Item();
items[0] = item0;
items[1] = item1;
items[2] = item2;
item0.setName("ノート");
item0.setPrice(120);
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++) {
items[i].sell(5); items[i].sell(5);
//2-2
System.out.println(items[i].toString()); System.out.println(items[i]);
//2-2
}
//1-3
} }
}
} }

View File

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

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
@@ -16,5 +17,6 @@ public class Circle extends Shape {
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

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

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 rectangle = new Rectangle(3, 4); // TODO 自動生成されたメソッド・スタブ
rectangle.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

@@ -1,11 +1,14 @@
public class DayCheck3 { 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

@@ -0,0 +1,9 @@
public class DayCheck1 {
public static void main(String[] args) {
Circle radius = new Circle(2);
radius.showInfo();
}
}

View File

@@ -1,28 +1,11 @@
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) { public DepartmentData(String idDepartment, String nmDepartment) {
this.idDepartment = idDepartment; setIdDepartment(idDepartment);
this.nmDepartment = nmDepartment; setNmDepartment(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() {
@@ -40,5 +23,17 @@ 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() {
return getIdDepartment() + "\t" + getNmDepartment();
}
public String toCSV() {
return getIdDepartment() + "," + getNmDepartment();
}
public String getPrimaryKeyValue() {
return getIdDepartment();
}
} }

View File

@@ -1,104 +1,34 @@
public class EmployeeData extends BaseData { public class EmployeeData extends BaseData {
//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;
//1-6 private String password;
// public EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password, private String idDepartment;
// 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; private static int empCount = 0;
static int getEmpCount() { EmployeeData() {
return empCount; empCount = empCount + 1;
}
EmployeeData(String idEmployee, String nmEmployee, String knEmployee, String mailAddress, String password,
String idDepartment) {
setIdEmployee(idEmployee);
setNmEmployee(nmEmployee);
setKnEmployee(knEmployee);
setMailAddress(mailAddress);
setPassword(password);
setIdDepartment(idDepartment);
empCount = empCount + 1;
} }
//2-7
//2-4
public String getIdEmployee() { public String getIdEmployee() {
return IdEmployee; return idEmployee;
} }
public void setIdEmployee(String idEmployee) { public void setIdEmployee(String idEmployee) {
//2-9 this.idEmployee = idEmployee;
idEmployee = idEmployee.strip();
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() {
@@ -106,16 +36,17 @@ public class EmployeeData extends BaseData {
} }
public void setNmEmployee(String nmEmployee) { public void setNmEmployee(String nmEmployee) {
//2-8 // 2日目段階8
nmEmployee = nmEmployee.strip(); // String stripped = nmEmployee.strip();
if (nmEmployee.length() == 0) { // int length = stripped.length();
System.out.println("社員名が空のため設定できませんでした"); // if (nmEmployee == null) {
return; // System.out.println("社員名が空のため設定できませんでした");
} else { // }
// 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;
} }
//2-8
}
public String getKnEmployee() { public String getKnEmployee() {
return knEmployee; return knEmployee;
@@ -148,5 +79,37 @@ public class EmployeeData extends BaseData {
public void setIdDepartment(String idDepartment) { public void setIdDepartment(String idDepartment) {
this.idDepartment = idDepartment; this.idDepartment = idDepartment;
} }
//2-4
public static int getEmpCount() {
return empCount;
}
public static void setEmpCount(int empCount) {
EmployeeData.empCount = empCount;
}
@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() {
return getIdEmployee() + "," + getNmEmployee() + "," + getKnEmployee() + "," + getMailAddress()
+ "," + getPassword() + "," + getIdDepartment();
}
public String getPrimaryKeyValue() {
return idEmployee;
}
public static int empCount() {
return empCount;
}
} }

View File

@@ -1,3 +1,4 @@
public interface Greeting { public interface Greeting {
String hello(); String hello();
} }

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@@ -1,27 +1,20 @@
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) { // void sell(int amount) {
this.name = name;
this.price = price;
this.stock = stock;
}
void sell(int amount) {
// this.stock = this.stock - 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 public void sell(int amount) {
setStock(this.getStock() - amount);
}
@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() {
@@ -47,5 +40,5 @@ public class Item {
public void setStock(int stock) { public void setStock(int stock) {
this.stock = stock; this.stock = stock;
} }
//2-2
} }

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@@ -1,7 +1,10 @@
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

@@ -1,168 +1,79 @@
//import java.util.Scanner;//1-8 import java.util.Scanner;
public class Main { public class Main {
public static void main(String[] args) { public static void main(String[] args) {
//1-8 // TODO 自動生成されたメソッド・スタブ
// Scanner scanner = new Scanner(System.in);
// //1-9
// boolean end = false;
// while (!end) {
// //1-9
// 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()); while (true) {
// System.out.println(employee.getNmEmployee());
// System.out.println(employee.getKnEmployee()); 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)");
// System.out.println(employee.getMailAddress()); Scanner scanner = new Scanner(System.in);
// System.out.println(employee.getPassword()); String id = scanner.nextLine();
// System.out.println(employee.getIdDepartment()); boolean bo = false;
//1-4
BaseData[] allData = new BaseData[11];
BaseData employee = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
BaseData employee1 = new EmployeeData("10001", "高橋準", "タカハシジュン", "jtaka@hoge.jp", "bbb", "10");
BaseData employee2 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
BaseData employee3 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "12");
BaseData employee4 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp,eee", "eee", "13");
allData[0] = employee;
allData[1] = employee1;
allData[2] = employee2;
allData[3] = employee3;
allData[4] = employee4;
BaseData dept = new DepartmentData("10", "役員");
BaseData dept1 = new DepartmentData("11", "人事・総務部");
BaseData dept2 = new DepartmentData("12", "経理部");
BaseData dept3 = new DepartmentData("13", "システム開発事業部");
BaseData dept4 = new DepartmentData("14", "教育事業部");
BaseData dept5 = new DepartmentData("15", "営業企画部");
allData[5] = dept;
allData[6] = dept1;
allData[7] = dept2;
allData[8] = dept3;
allData[9] = dept4;
allData[10] = dept5;
// for (int i = 0; i < allData.length; i++) {
// System.out.println(allData[i]);
// }
// System.out.println("現在の社員データ件数"+ EmployeeData.getEmpCount()+ "件");
for (int i = 0; i < allData.length; i++) {
// System.out.println(employees[i]);
if (allData[i].getPrimaryKeyValue().equals(id)) {
bo = true;
System.out.println(allData[i]);
//3-4
// System.out.println(employee.toCSV()); // System.out.println(employee.toCSV());
// System.out.println(employee.getPrimaryKeyValue()); // System.out.println(employee.getPrimaryKeyValue());
//3-4
//2-5
// EmployeeData emp1 = new EmployeeData("10000", "山田龍也", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
// EmployeeData emp2 = new EmployeeData("10001", "高橋準", "タカハシジュン", "Jtaka@hoge.jp", "bbb", "11");
// EmployeeData emp3 = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "12");
// EmployeeData emp4 = new EmployeeData("10003", "丸戸章介", "マルトショウスケ", "marusyo@hoge.jp", "ddd", "13");
// EmployeeData emp5 = new EmployeeData("10004", "三宅武", "ミヤケタケシ", "miya@hoge.jp", "eee", "14");
//2-5
//1-6
BaseData[] employee = new EmployeeData[5];
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");
employee[2] = new EmployeeData("10002", "麻枝史明", "マエダフミアキ", "fmak@hoge.jp", "ccc", "11");
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");
//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
//3-5
// System.out.println(employee[2].getPrimaryKeyValue().equals("10002"));
// System.out.println(employee[2].getPrimaryKeyValue().equals("99999"));
//3-5
//1-7
//1-8
// for (int i = 0; i < employee.length; i++) {
// if (num.equals(employee[i].getIdEmployee())) {
// //2-6
// System.out.println(employee[i]);
// //2-6
//// 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");
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 // employees[i].isMatchId("10002");
int Cou = 0; // employees[i].isMatchId("99999");
int Cou2 = 0; continue;
for (int i = 0; i < 11; i++) {
if (allData[i] instanceof EmployeeData) {
Cou = Cou + 1;
} else if (allData[i] instanceof DepartmentData) {
Cou2 = Cou2 + 1;
} }
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");
} }
System.out.println("社員データ:" + Cou + "件"); if (id.equals("0")) {
System.out.println("部署データ:" + Cou2 + "件"); System.out.println("システムを終了します");
//3-7 break;
//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
}
} }

View File

@@ -5,12 +5,14 @@ public class Rectangle extends Shape {
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
public double area() { public double area() {
return width * height; return width * height;
} }
} }

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;
} }

View File

@@ -1,27 +1,25 @@
public class Student { public class Student {
//1-2
int studentId; int studentId;
String name; String name;
void printProfile() {
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; static int studentCount = 0;
{ {
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);
} }
//2-3
} }