20261027

Question06-for/src/main/java/Question06.java

@@ -1,44 +0,0 @@
-
-public class Question06 {
-
-	public static void main(String[] args) {
-		// TODO 自動生成されたメソッド・スタブ
-		
-				//設問１
-				for(int i = 0; i <= 99; i++) {
-					  System.out.println(i);
-				 }
-				
-				//設問２
-				for(int i = 0; i <= 5; i++) {
-					System.out.print("■");
-				}
-				
-				//設問３
-				for(int i = 0; i <= 100; i++) {
-					//偶数の判定
-					if(0 == (i%2))
-						System.out.println(i);
-				}
-				
-				//設問４
-				for(int i = 1; i <= 49; i++) {
-					
-					if(i % 3 == 0 && i % 5 == 0)
-						System.out.println("fizzbuzz");
-					
-					else if(i % 3 == 0)
-						System.out.println("fizz");
-					
-					else if(i % 5 == 0)
-						System.out.println("buzz");
-					
-					else
-						System.out.println(i);
-				}
-				
-				for(int i =0; i <= 2; i++);
-				
-	}
-
-}

Question06-for/src/main/java/Question06_01.java

@@ -0,0 +1,12 @@
+
+public class Question06_01 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+		for(int i = 0; i <= 99; i++) {
+			  System.out.println(i);
+		 }
+	}
+
+}

Question06-for/src/main/java/Question06_02.java

@@ -0,0 +1,11 @@
+
+public class Question06_02 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		for(int i = 0; i <= 5; i++) {
+			System.out.print("■");
+		}
+	}
+
+}

Question06-for/src/main/java/Question06_03.java

@@ -0,0 +1,13 @@
+
+public class Question06_03 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		for(int i = 0; i <= 100; i++) {
+			//偶数の判定
+			if(0 == (i%2))
+				System.out.println(i);
+		}
+	}
+
+}

Question06-for/src/main/java/Question06_04.java

@@ -0,0 +1,26 @@
+
+public class Question06_04 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		for(int i = 1; i <= 49; i++) {
+			
+			if(i % 3 == 0 && i % 5 == 0)
+				System.out.println("fizzbuzz");
+			
+			else if(i % 3 == 0)
+				System.out.println("fizz");
+			
+			else if(i % 5 == 0)
+				System.out.println("buzz");
+			
+			else
+				System.out.println(i);
+		}
+		
+		for(int i =0; i <= 2; i++);
+		
+
+	}
+
+}

Question06-for/src/main/java/Question06_05.java

@@ -0,0 +1,19 @@
+import java.util.Random;
+public class Question06_05 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタ
+		
+		for(int i = 1; i <= 10; i++) {
+			Random random = new Random();
+			int num = random.nextInt(3);
+
+			if(num == 2) {
+				System.out.println();
+			}else {
+				System.out.println(num);
+			}
+		}
+	}
+
+}

Question06-for/src/main/java/Question06_06.java

@@ -0,0 +1,15 @@
+
+public class Question06_06 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		for(int n = 1; n <= 5; n ++) {
+			
+			for(int i = 1; i <= 5; i ++) {
+				System.out.print("■");
+			}
+			System.out.println("");
+	}
+	}
+
+}

Question06-for/src/main/java/Question06_07.java

@@ -0,0 +1,17 @@
+
+public class Question06_07 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		for(int i = 1; i <= 9; i++) {
+
+			for(int n = 1; n <= 9; n++) {
+				System.out.print(" " + i*n);
+			}
+			
+			System.out.println();
+			
+		}
+	}
+
+}

Question07-Array/src/main/java/Question07_05.java

@@ -1,4 +1,4 @@
-
+import java.util.Random;
 public class Question07_05 {
 
 	public static void main(String[] args) {
@@ -6,11 +6,10 @@ public class Question07_05 {
 		String[] array = {"森", "山", "沼", "島", "平地"};
 		
 		
-		for(int i = (int) Math.random(); i < array.length; i++) {
+		Random random = new Random();
-			System.out.print(array[i]);
+        int num = random.nextInt(5);
-		}
-	
         
+        System.out.println(array[num]);
 
 	}
 

Question07-Array/src/main/java/Question07_06.java

@@ -0,0 +1,14 @@
+
+public class Question07_06 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] array = {"森", "山", "沼", "島", "平地"};
+		
+		for(int i = array.length-1; i >= 0; i --) {
+			System.out.print(array[i]);
+		}
+	}
+	
+	
+}

Question07-Array/src/main/java/Question07_07.java

@@ -0,0 +1,12 @@
+
+public class Question07_07 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+		String[]day = {"月","火","水","木","金"};
+		String[]schedule = {"1時間目","２時間目","３時間目","４時間目","５時間目"};
+		System.out.println(day[day.ength]);
+	}
+		
+}

Question07-Array/src/main/java/Question07_08.java

@@ -0,0 +1,9 @@
+
+public class Question07_08 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

Question07-Array/src/main/java/Question07_09.java

@@ -0,0 +1,9 @@
+
+public class Question07_09 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

Question07-Array/src/main/java/Question07_10.java

@@ -0,0 +1,9 @@
+
+public class Question07_10 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

Question09-Package/.classpath

@@ -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>

Question09-Package/.gitignore

@@ -0,0 +1 @@
+/build/

Question09-Package/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question09-Package</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>

Question09-Package/.settings/org.eclipse.jdt.core.prefs

@@ -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

Question09-Package/.settings/org.eclipse.wst.common.project.facet.core.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <installed facet="java" version="21"/>
+</faceted-project>

Question09-Package/src/main/java/Question09_01.java

@@ -0,0 +1,10 @@
+public class Question09_01 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		hello();
+	}
+
+	
+
+}

Question09-Package/src/main/java/Question09_01/Util.java

@@ -0,0 +1,9 @@
+package Question09_01;
+
+public class Util {
+	
+	public void hello() {
+		System.err.println("こんにちは");
+	}
+
+}

Question09-Package/src/main/java/Question09_02.java

@@ -0,0 +1,9 @@
+
+public class Question09_02 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

Question09-Package/src/main/java/Question09_03.java

@@ -0,0 +1,9 @@
+
+public class Question09_03 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Car.java

@@ -0,0 +1,24 @@
+import java.util.Random;
+
+public class Car {
+	//フィールド
+	String color;
+	int gasoline;
+	
+	//メソッド
+	public int run() {
+		this.gasoline =  (gasoline -1);
+		
+		if(gasoline >= 0) {
+			Random random = new Random();
+			int num = random.nextInt(16) + 1;
+			
+			return num;
+			
+		} else {
+			
+			return -1;
+		}
+		
+	}
+}

Question10-InstanceAndClass/src/main/java/Question10_05.java

@@ -3,6 +3,17 @@ public class Question10_05 {
 
 	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
+		Car car = new Car();
+		
+		car.color = "赤";
+		car.gasoline = 50;
+		
+		//runメソッドの実行
+		//car.run();
+		
+		System.out.println(car.color +"色の車は" + car.run() +"進みました");
+		System.out.println(car.gasoline);
 		
 	}
 

Question11-ConstructorAndStatic/src/main/java/Atm.java

@@ -7,12 +7,13 @@ public class Atm {
 	//withdrawメソッドの生成
 	public void withdraw(Wallet2 wallet,int money) {
 		
-		wallet.money = wallet.money + money;
 		
-		if(credit < money) {
+		if(this.credit < money) {
 			System.out.println("預金残高不足です。現金の引き出しに失敗しました。");
 		}	else {
-			System.out.println("ATMの残り残高はx" + (credit - wallet.money) + "です");
+			this.credit = this.credit - money;
+			wallet.money = wallet.money + money;
+			System.out.println("ATMの残り残高は" + this.credit + "です");
 		}
 		
 	}

Question11-ConstructorAndStatic/src/main/java/Question11_02.java

@@ -10,17 +10,19 @@ public class Question11_02 {
 		wallet.money = 10000;
 	
 		
+		
 		//Atm 型の変数 atm を宣言し、Atm のインスタンスを代入
 		Atm atm = new Atm();
 
+		
 		//atm の withdraw メソッドを、第一引数に wallet、第二引数に 100000 を渡して呼び出す
 		atm.withdraw(wallet,100000);
 		
 		//wallet の money フィールドの値を出力
 		System.out.println(wallet.money);
 		
-		atm.withdraw(wallet,100000);
 		
+		atm.withdraw(wallet,100000);
 		System.out.println(wallet.money);
 		
 	}

Question11-ConstructorAndStatic/src/main/java/Question11_04.java

@@ -0,0 +1,20 @@
+
+public class Question11_04 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		//Student2のインスタンス生成
+		Student2 deta = new Student2();
+		
+	    //生徒の名前（name フィールド）に 太郎 を設定
+		deta.name = "太郎";
+		Student2.group = "A";
+		Student2.teacher = "山田";
+		
+		deta.studentProfile();		
+		Student2.groupProfile();
+	}
+
+
+
+}

Question11-ConstructorAndStatic/src/main/java/Student2.java

@@ -0,0 +1,17 @@
+
+public class Student2 {
+	//Student2クラスで３つのフィールドを宣言する
+	String name;
+	static String group; 
+	static String teacher;
+	
+	//メソッドの定義
+	public  void studentProfile() {
+		System.out.println(this.name +"は" + group +"教室の生徒です。");
+	}
+	
+	public static void groupProfile() {
+		System.out.println(group +"教室の担任は" + teacher +"先生です。");
+	}
+
+}

Question11-ConstructorAndStatic/src/main/java/Wallet2.java

@@ -2,4 +2,6 @@
 public class Wallet2 {
 	//フィールドの宣言
 	int money;
+
+	
 }

Question13-Extends/src/main/java/Animal.java

@@ -1,4 +1,14 @@
-
+//親クラス
 public class Animal {
+	String name;
+	
+	 public void run() {
+	     System.out.println(name + "は走りました。");
+	 }
+	 
+	 public void eat() {
+	     System.out.println(name + "は食事をしました。");
+	 }
+	 
 	 
 }

Question13-Extends/src/main/java/Cat.java

@@ -0,0 +1,6 @@
+//子クラス
+public class Cat extends Animal {
+	public void Catprint () {
+		
+	}
+}

Question13-Extends/src/main/java/Dog.java

@@ -0,0 +1,6 @@
+//子クラス
+public class Dog extends Animal {
+	public void Dogprint() {
+		System.out.println(name + "はドックフードを食べました。");
+	}
+}

Question13-Extends/src/main/java/Question13_01.java

@@ -3,6 +3,19 @@ public class Question13_01 {
 
 	public static void main(String[] args) {
 		// TODO 自動生成されたメソッド・スタブ
+		//Catクラスのインスタンス生成
+		Cat cat = new Cat();
+		cat.name = "タマ";
+		
+		Dog dog = new Dog();
+		dog.name = "ポチ";
+		
+		cat.run();
+		cat.eat();
+		cat.Catprint();
+		
+		dog.run();
+		dog.Dogprint();
 
 	}
 

Question14-Interface/.classpath

@@ -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>

Question14-Interface/.gitignore

@@ -0,0 +1 @@
+/build/

Question14-Interface/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question14-Interface</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>

Question14-Interface/.settings/org.eclipse.jdt.core.prefs

@@ -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

Question14-Interface/.settings/org.eclipse.wst.common.project.facet.core.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <installed facet="java" version="21"/>
+</faceted-project>

Question14-Interface/src/main/java/Book.java

@@ -0,0 +1,12 @@
+
+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);
+	
+}

Question14-Interface/src/main/java/Question14_01.java

@@ -0,0 +1,9 @@
+
+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";
+		
+		System.out.println(book.chapter());
+	}
+}

Question14-Interface/src/main/java/programmingBook.java

@@ -0,0 +1,14 @@
+
+public class programmingBook implements Book {
+	
+	String bookname;
+	
+	public void bookPrint() {
+		System.out.println("プログラミング基礎入門");
+	}
+	
+	public String chapter(String chapter1,String chapter2,String chapter3,String chapter4,String chapter5) {
+		return chapter1+"/"+ chapter2 +"/"+ chapter3 +"/"+ chapter4 +"/"+ chapter5;
+	}
+
+}