2026_1011_3FR_Java_Kyono/question-java
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福森　百夢
2026-10-30 17:59:25 +09:00
parent 6feb026bb4
commit 6701bc351e
26 changed files with 254 additions and 39 deletions
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12
Question08-Method/src/main/java/Question08_06.java
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@@ -1,17 +1,9 @@
public class Question08_06 {
public static int addArray(int x, int y) {
return x,y;
}
}
}
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
int x = 10;
int y = 20;
System.out.println();
}
}

8
Question12-Encapsulation/src/main/java/Item.java
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@@ -1,6 +1,6 @@
public class Item {
private String item = "アイテムA";
private String item;
// ゲッターセッターの設定
@@ -13,12 +13,8 @@ public class Item {
}
//コンストラクタの設定
public Item(String item) {
Item(String item) {
this.item = item;
}
//メソッドの設定
public void itembox() {
System.out.println(item);
}
}

4
Question12-Encapsulation/src/main/java/Question12_02.java
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@@ -4,10 +4,8 @@ public class Question12_02 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//インスタンスの生成
Item secretitem = new Item();
Item secretitem = new Item("アイテムA");
secretitem.itembox();
secretitem.setItem();
System.out.println(secretitem.getItem());
}

10
Question14-Interface/src/main/java/Book.java
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@@ -1,12 +1,8 @@
public interface Book {
String bookname;
//メソッドの定義
void bookPrint();
String chapter(String chapter1,String chapter2,String chapter3,String chapter4,String chapter5);
//Printメソッドの宣言
void Print();
}

4
Question14-Interface/src/main/java/Car.java Normal file
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@@ -0,0 +1,4 @@
public interface Car {
void Print();
}

5
Question14-Interface/src/main/java/Question14_01.java
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@@ -1,9 +1,8 @@
public class Question14_01 {
public static void main(String[] args) {
Book book = new Book();
book.bookname = "プログラミング基礎入門";
Book bk = new programmingBook();
System.out.println(book.chapter());
bk.Print();
}
}

10
Question14-Interface/src/main/java/Question14_02.java Normal file
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@@ -0,0 +1,10 @@
public class Question14_02 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
Car car = new Sportscar();
car.Print();
}
}

17
Question14-Interface/src/main/java/Sportscar.java Normal file
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@@ -0,0 +1,17 @@
public class Sportscar implements Car{
int gasolene = 100;
int speed = 301;
public void Print() {
System.out.println("ハイオクを" + gasolene +"リットル補充した");
if(speed >= 300) {
System.out.println("速度オーバーです");
} else {
System.out.println("スポーツカーは時速" + speed +"キロで走った");
}
}
}

18
Question14-Interface/src/main/java/programmingBook.java
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@@ -1,14 +1,12 @@
public class programmingBook implements Book {
String bookname;
public void bookPrint() {
System.out.println("プログラミング基礎入門");
//フィールド
String bookname = "プログラミング基礎入門";//本のタイトル
String[] chapter = {"式と変数","制御構文","メソッド","オブジェクト指向","継承"};//章立て(配列)
//コンストラクタ？？
public void Print() {
System.out.println(bookname);
System.out.println(chapter[0] + chapter[1] + chapter[2] + chapter[3] + chapter[4]);
}
public String chapter(String chapter1,String chapter2,String chapter3,String chapter4,String chapter5) {
return chapter1+"/"+ chapter2 +"/"+ chapter3 +"/"+ chapter4 +"/"+ chapter5;
}
}

6
Question15-Polymorphism/.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/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
<classpathentry kind="src" path="src/main/java"/>
<classpathentry kind="output" path="build/classes"/>
</classpath>

1
Question15-Polymorphism/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

28
Question15-Polymorphism/.project Normal file
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@@ -0,0 +1,28 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Question15-Polymorphism</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.wst.common.project.facet.core.builder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.wst.common.project.facet.core.builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

9
Question15-Polymorphism/.settings/org.eclipse.jdt.core.prefs Normal file
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@@ -0,0 +1,9 @@
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
org.eclipse.jdt.core.compiler.compliance=21
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=21

4
Question15-Polymorphism/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
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@@ -0,0 +1,4 @@
<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

11
Question15-Polymorphism/src/main/java/Car.java Normal file
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@@ -0,0 +1,11 @@
public class Car {
//データ
String carname;
int carspeed;
public void Car() {
System.out.println(carname + "は時速" + carspeed + "で走った");
}
}

13
Question15-Polymorphism/src/main/java/Question15_01.java Normal file
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@@ -0,0 +1,13 @@
public class Question15_01 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
Car sc = new SportsCar();
Car tk = new Truck();
sc.Car();
tk.Car();
}
}

19
Question15-Polymorphism/src/main/java/Question15_02.java Normal file
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@@ -0,0 +1,19 @@
public class Question15_02 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
Car[] cr = new Car[2];
cr[0] = new SportsCar();
cr[1] = new Truck();
for(Car car1 : cr) {
car1.Car();
}
}
}

17
Question15-Polymorphism/src/main/java/SportsCar.java Normal file
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@@ -0,0 +1,17 @@
public class SportsCar extends Car{
//データ
String carname = "スポーツカー";
int carspeed = 100;
@Override
public void Car() {
System.out.println(carname + "は時速" + carspeed + "で走った");
}
public void SportsCar() {
System.out.println(carname + "は時速" + (carspeed * 3) + "で走った");
}
}

11
Question15-Polymorphism/src/main/java/Truck.java Normal file
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@@ -0,0 +1,11 @@
public class Truck extends Car {
//データ
String carname = "トラック";
int carspeed = 30;
public void Car() {
System.out.println(carname + "は時速" + carspeed + "で走った");
}
}

6
Question16-Exception/.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/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
<classpathentry kind="src" path="src/main/java"/>
<classpathentry kind="output" path="build/classes"/>
</classpath>

1
Question16-Exception/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

23
Question16-Exception/.project Normal file
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@@ -0,0 +1,23 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Question16-Exception</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.wst.common.project.facet.core.builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

9
Question16-Exception/.settings/org.eclipse.jdt.core.prefs Normal file
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@@ -0,0 +1,9 @@
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
org.eclipse.jdt.core.compiler.compliance=21
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=21

4
Question16-Exception/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
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@@ -0,0 +1,4 @@
<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

20
Question16-Exception/src/main/java/Question16_01.java Normal file
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@@ -0,0 +1,20 @@
public class Question16_01 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//整数xとyを渡して、プログラムを呼び出す
try {
int x = 10;
int y = 0;
int Caluculate;
Caluculate = x / y;
System.out.println(Caluculate);
} catch (ArithmeticException e) {
System.out.println("0で割ることはできません");
}
}
}

23
Question16-Exception/src/main/java/Question16_02.java Normal file
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@@ -0,0 +1,23 @@
public class Question16_02 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
try {
String str = "";
if(str.isEmpty())
str = null;
} catch(NullPointerException e) {
System.out.println("入力が空です");
} break;
try {
int num = Integer.parseInt(str);
System.out.println(num*2);
} catch(NumberFormatException e) {
System.out.println("数値に変換できません");
}