1102自主学習

Question01-StartProgram/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question01-StartProgram</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+	</natures>
+</projectDescription>

Question02-Expressions/.classpath

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+<?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>

Question02-Expressions/.gitignore

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+/build/

Question02-Expressions/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question02-Expressions</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>

Question02-Expressions/.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

Question02-Expressions/.settings/org.eclipse.wst.common.project.facet.core.xml

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

Question02-Expressions/src/main/java/Question2_1.java

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+
+public class Question2_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int sum = (6 + 2);
+		System.out.println(sum);
+		
+		int diff = (6 - 2);
+		System.out.println(diff);
+		
+		int mulch = (6 * 2);
+		System.out.println(mulch);
+		
+		int div = (6 / 2);
+		System.out.println(div);
+		
+		int rem = (17 % 5);
+		System.out.println(rem);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_2.java

@@ -0,0 +1,12 @@
+
+public class Question2_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String lastName = "山田";
+		String firstName = "太郎";
+		
+		System.out.println(lastName + firstName);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_3.java

@@ -0,0 +1,11 @@
+
+public class Question2_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 10;
+		num += 5;
+		System.out.println(num);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_4.java

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+
+public class Question2_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		float sum;
+		int num = 10;
+		float fl= 3.14f;
+		
+		sum = num + fl;
+		System.out.println(sum);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_5.java

@@ -0,0 +1,13 @@
+
+public class Question2_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int age = 20;
+		int diff = 5;
+		
+		System.out.println("山田さんは" + age + "歳です。");
+		System.out.println(diff + "年後には" + (age + diff) + "歳になります。");
+	}
+
+}

Question02-Expressions/src/main/java/Question2_6.java

@@ -0,0 +1,10 @@
+
+public class Question2_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		float sum = 9f / 2f;
+		System.out.println(sum);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_7.java

@@ -0,0 +1,10 @@
+
+public class Question2_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = (int)1.0;
+		System.out.println(num);
+	}
+
+}

Question02-Expressions/src/main/java/Question2_8.java

@@ -0,0 +1,18 @@
+
+public class Question2_8 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int money = 1000;
+		int price = 580;
+		float taxRate = 0.08f;
+		
+		float tax  = (int) (price * taxRate);
+		
+		float total = price + tax;
+		money -= total;
+		
+		System.out.println("残金は" + money + "円です。");
+	}
+
+}

Question03-if/.classpath

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+<?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>

Question03-if/.gitignore

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

Question03-if/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question03-if</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>

Question03-if/.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

Question03-if/.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>

Question03-if/src/main/java/Question3_1.java

@@ -0,0 +1,14 @@
+
+public class Question3_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		//設問1
+		int num;
+		num = 100;
+		if(num == 100) {
+			System.out.println("条件に合致しました");
+		}
+	}
+
+}

Question03-if/src/main/java/Question3_2.java

@@ -0,0 +1,15 @@
+
+public class Question3_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num;
+		num = 65;
+		if(num >= 65) {
+			System.out.println("合格です");
+		}else if(num < 65) {
+			System.out.println("不合格です");
+		}
+	}
+
+}

Question03-if/src/main/java/Question3_3.java

@@ -0,0 +1,13 @@
+
+public class Question3_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num;
+		num = 10;
+		if (num % 2 == 0 && num % 5 == 0) {
+			System.out.println(num + "は2でも5でも割り切れます。");
+		}
+	}
+
+}

Question03-if/src/main/java/Question3_4.java

@@ -0,0 +1,22 @@
+import java.util.Scanner;
+
+public class Question3_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("降水確率を入力してください。（数字のみ）");
+		Scanner sc = new Scanner(System.in);
+		int num = sc.nextInt();
+		
+		if(num < 0 || num >100){
+			System.out.println("不正な値が入力されました");
+		}else if(num >= 75) {
+			System.out.println("雨が降る確率が高いです");
+		}else if(num >= 30 && num <75) {
+			System.out.println("雨が降るかもしれないです");
+		}else if (num < 30) {
+			System.out.println("雨はまず降らないでしょう");
+		}
+	}
+
+}

Question04-while/.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>

Question04-while/.gitignore

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

Question04-while/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question04-while</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>

Question04-while/.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

Question04-while/.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>

Question04-while/src/main/java/Question4_1.java

@@ -0,0 +1,13 @@
+
+public class Question4_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 0;
+		
+		while(num != 5) {
+			num = (int)(Math.random()*10);
+			System.out.println(num);
+		}
+	}
+}

Question04-while/src/main/java/Question4_2.java

@@ -0,0 +1,14 @@
+
+public class Question4_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 2;
+		
+		while(num < 1000) {
+			num *= 2;
+			System.out.println(num);
+		}
+	}
+
+}

Question04-while/src/main/java/Question4_3.java

@@ -0,0 +1,20 @@
+
+public class Question4_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 0;
+		
+		while(true) {
+			num = (int)(Math.random()*10);
+			if(num !=5) {
+				System.out.println(num);
+				continue;
+			}else {
+				System.out.println(num);
+				break;
+			}
+		}
+	}
+
+}

Question04-while/src/main/java/Question4_4.java

@@ -0,0 +1,33 @@
+import java.util.Scanner;
+
+public class Question4_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int map = 50;
+		int progress = 0;
+		int num = 0;
+		String str;
+		
+		System.out.println("===== START =====");
+		
+		while(progress <= map) {
+			System.out.println("Enterキーを押してください。さいころをふります。");
+			Scanner sc = new Scanner(System.in);
+			str = sc.nextLine();
+			System.out.println(str);
+			
+			num = (int)(Math.random()*6) + 1;
+			System.out.println(num + "の目がでました。");
+			
+			progress += num;
+			int remaining = map - progress;
+			if(progress < map) {
+				System.out.println("残りのマスは" + remaining + "マスです。");
+			}
+		}
+		
+		System.out.println("===== GOAL =====");
+	}
+
+}

Question04-while/src/main/java/Question4_5.java

@@ -0,0 +1,53 @@
+import java.util.Scanner;
+
+public class Question4_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		boolean winFlag = false;
+		
+		while(!winFlag) {
+		System.out.println("じゃんけんを行います。");
+		System.out.println("あなたの出す手を入力してください。");
+		System.out.println("0:グー、1:チョキ、2:パー");
+		
+		Scanner sc = new Scanner(System.in);
+		int playerHand;
+		playerHand= sc.nextInt();
+		System.out.println(playerHand);
+		
+		if(playerHand == 0) {
+			System.out.println("あなたはグーを出しました。");
+		}else if(playerHand == 1) {
+			System.out.println("あなたはチョキを出しました。");
+		}else {
+			System.out.println("あなたはパーを出しました。");
+		}
+		
+		int num = (int)(Math.random()*3);
+		int npcHand = num;
+		
+		if(npcHand ==0) {
+			System.out.println("相手はグーを出しました。");
+		}else if(npcHand ==1) {
+			System.out.println("相手はチョキを出しました。");
+		}else {
+			System.out.println("相手はパーを出しました。");
+		}
+		
+		if(playerHand == 0 && npcHand ==1 || playerHand == 1 && npcHand ==2 || playerHand == 2 &&npcHand ==0) {
+			System.out.println("あなたの勝ちです。");
+			winFlag = true;
+		}else if(playerHand == npcHand) {
+			System.out.println("あいこです。");
+			System.out.println();
+			continue;
+		}else {
+			System.out.println("あなたの負けです。");
+			System.out.println();
+			continue;
+		}
+		
+	}
+}	
+}

Question05-switch/.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>

Question05-switch/.gitignore

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

Question05-switch/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question05-switch</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>

Question05-switch/.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

Question05-switch/.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>

Question05-switch/src/main/java/Question5_1.java

@@ -0,0 +1,36 @@
+
+public class Question5_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("今日の運勢を占います。");
+		int num = (int)(Math.random()*6);
+		
+		switch(num) {
+		case 0:
+			System.out.println("あなたの運勢は「大吉」です");
+			break;
+			
+		case 1:
+			System.out.println("あなたの運勢は「吉」です");
+			break;
+			
+		case 2:
+			System.out.println("あなたの運勢は「中吉」");
+			break;
+			
+		case 3:
+			System.out.println("あなたの運勢は「小吉」");
+			break;
+			
+		case 4:
+			System.out.println("あなたの運勢は「末吉」");
+			break;
+			
+		case 5:
+			System.out.println("あなたの運勢は「凶」");
+			break;
+		}
+	}
+
+}

Question05-switch/src/main/java/Question5_2.java

@@ -0,0 +1,42 @@
+import java.util.Scanner;
+
+public class Question5_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("1つ目の数値を入力してください");
+		Scanner sc = new Scanner(System.in);
+		int num1 = sc.nextInt();
+		System.out.println("2つ目の数値を入力してください");
+		int num2 = sc.nextInt();
+		System.out.println("計算方法を選択してください");
+		sc.nextLine();
+		String choice = sc.nextLine();
+		
+		switch(choice) {
+		case "+":
+			System.out.println(num1 + num2);
+			break;
+			
+		case "-":
+			System.out.println(num1 - num2);
+			break;
+			
+		case "*":
+			System.out.println(num1 * num2);
+			break;
+			
+		case "/":
+			System.out.println(num1 / num2);
+			break;
+			
+		case "%":
+			System.out.println(num1 % num2);
+			break;
+			
+		default:
+			System.out.println("計算に失敗しました");
+		}
+	}
+
+}

Question05-switch/src/main/java/Question5_3.java

@@ -0,0 +1,58 @@
+import java.util.Scanner;
+
+public class Question5_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("=========================================");
+		System.out.println("				ゲームの説明				");
+		System.out.println("=========================================");
+		
+		System.out.println("これからハイ＆ローゲームを行います。");
+		System.out.println("ハイ＆ローゲームは、あなたのカードがディーラーのカードより大きいか小さいかを予想するゲームです。");
+		System.out.println();
+		
+		System.out.println("=========================================");
+		System.out.println("				ゲーム開始				");
+		System.out.println("=========================================");
+		
+		
+		int dealerCard = (int)(Math.random()*13)+1;
+		System.out.println("ディーラーのカードは" + dealerCard + "です");
+		int myCard = (int)(Math.random()*13)+1;
+		System.out.println();
+		System.out.println("あなたのカードがディーラのカードより大きい場合は H 小さい場合は L を入力してください。");
+		System.out.println("※ カードの数値が同じ場合はあなたの勝ちです。");
+		Scanner sc = new Scanner(System.in);
+		String judgement = sc.nextLine();
+		System.out.println("あなたのカードは" + myCard + "です");
+		
+		
+		System.out.println();
+		System.out.println("=========================================");
+		System.out.println("				勝敗判定"					);
+		System.out.println("=========================================");
+		
+		switch(judgement) {
+		case "H":
+			if(myCard > dealerCard || myCard == dealerCard) {
+				System.out.println("あなたの勝ちです");
+				break;
+			}else{
+				System.out.println("あなたの負けです");
+				break;
+			}
+		case "L":
+			if(myCard < dealerCard || myCard == dealerCard) {
+				System.out.println("あなたの勝ちです");
+				break;
+			}else{
+				System.out.println("あなたの負けです");
+				break;
+			}
+		default:
+			System.out.println("不正な値が入力されました");
+		}
+	}
+
+}

Question06-for/.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>

Question06-for/.gitignore

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

Question06-for/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question06-for</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>

Question06-for/.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

Question06-for/.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>

Question06-for/src/main/java/Question6_1.java

@@ -0,0 +1,11 @@
+
+public class Question6_1 {
+
+	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++){
+			System.out.println(i);
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_2.java

@@ -0,0 +1,13 @@
+
+public class Question6_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("■■■■■");
+		
+		for(int i = 0; i < 5;i++) {
+			System.out.print("■");
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_3.java

@@ -0,0 +1,13 @@
+
+public class Question6_3 {
+
+	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++) {
+			if(i % 2 == 0) {
+				System.out.println(i);
+			}
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_4.java

@@ -0,0 +1,19 @@
+
+public class Question6_4 {
+
+	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 % 5 == 0) {
+				System.out.println("buzz");
+			}else if(i % 3 == 0 ) {
+				System.out.println("fizz");
+			}else {
+				System.out.println(i);
+			}
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_5.java

@@ -0,0 +1,14 @@
+
+public class Question6_5 {
+
+	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 < 10; i++) {
+			int num = (int)(Math.random()*3);
+			if(num !=2) {
+				System.out.println(num);
+			}
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_6.java

@@ -0,0 +1,11 @@
+
+public class Question6_6 {
+
+	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.println("■■■■■");
+		}
+	}
+
+}

Question06-for/src/main/java/Question6_7.java

@@ -0,0 +1,14 @@
+
+public class Question6_7 {
+
+	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 j = 1; j <= 9; j++) {
+				System.out.printf("%2d",i * j);
+			}
+			System.out.println();
+		}
+	}
+
+}

Question07-Array/.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>

Question07-Array/.gitignore

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

Question07-Array/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question07-Array</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>

Question07-Array/.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

Question07-Array/.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>

Question07-Array/src/main/java/Question7_1.java

@@ -0,0 +1,9 @@
+
+public class Question7_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] nums = {1, 3, 5, 7, 9};
+		System.out.println(nums[1]);
+	}
+}

Question07-Array/src/main/java/Question7_10.java

@@ -0,0 +1,16 @@
+
+public class Question7_10 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] nums = new int[100];
+		
+		for(int i = 0; i < nums.length; i++) {
+			nums[i] = i + 1;
+		}
+		for(int i = 0; i < nums.length; i++) {
+			System.out.println(nums[i]);
+		}
+	}
+
+}

Question07-Array/src/main/java/Question7_2.java

@@ -0,0 +1,10 @@
+
+public class Question7_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] nums = {1, 10, 100};
+		System.out.println(nums[0] + nums[2]);
+	}
+
+}

Question07-Array/src/main/java/Question7_3.java

@@ -0,0 +1,12 @@
+
+public class Question7_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] str = {"森", "山", "沼", "島", "平地"};
+		for(int i = 0; i <= 4; i++) {
+			System.out.println(str[i]);
+		}
+	}
+
+}

Question07-Array/src/main/java/Question7_4.java

@@ -0,0 +1,15 @@
+
+public class Question7_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] nums = new int[1000];
+		for(int i = 0; i < 1000; i++) {
+		nums[i] = i + 1;
+	}
+		for(int i = 0; i < 1000; i++) {
+			System.out.println(nums[i]);
+		}
+
+}
+}

Question07-Array/src/main/java/Question7_5.java

@@ -0,0 +1,11 @@
+
+public class Question7_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] str = {"森", "山", "沼", "島", "平地"};
+		int num = (int)(Math.random()*5);
+		System.out.println(str[num]);
+	}
+
+}

Question07-Array/src/main/java/Question7_6.java

@@ -0,0 +1,12 @@
+
+public class Question7_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] str = {"森", "山", "沼", "島", "平地"};
+		for(int i = 4; i >=0; i--) {
+			System.out.println(str[i]);
+	}
+
+}
+}

Question07-Array/src/main/java/Question7_7.java

@@ -0,0 +1,28 @@
+
+public class Question7_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[][] timetable = {
+			{"国語", "社会", "国語", "理科", "社会"},
+			{"英語", "数学", "英語", "数学", "国語"},
+			{"理科", "国語", "理科", "国語" ,"理科"},
+			{"社会", "社会", "数学", "社会", "数学"},
+			{"数学", "英語", "英語", "理科", "英語"},
+			};
+		
+		System.out.println("\t	 月\t	 火\t	 水\t	 木\t	 金");
+		for(int i = 0; i < 5; i++) {
+			System.out.print((i + 1) + "時間目");
+			
+			for(int j = 0; j < 5; j++) {
+				System.out.print("\t" + timetable[i][j]);
+			}
+			System.out.println();
+		}
+		
+		System.out.println(timetable[1][4]);
+		}
+	}
+
+

Question07-Array/src/main/java/Question7_8.java

@@ -0,0 +1,16 @@
+
+public class Question7_8 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[][] nums = {
+			{1, 3, 5, 7},
+			{11, 13, 17, 19, 23, 29}
+		};
+		for(int i = 0; i < nums.length; i++) {
+			for(int j = 0; j < nums[i].length; j++) {
+				System.out.println(nums[i][j]);
+			}
+		}
+	}
+}

Question07-Array/src/main/java/Question7_9.java

@@ -0,0 +1,23 @@
+
+public class Question7_9 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[][] nums = {
+				{1, 3, 5, 7},
+				{11, 13, 17, 19, 23, 29}
+			};
+		int sum = 0;
+		int count = 0;
+		
+		for(int i = 0; i < nums.length; i++) {
+			for(int j = 0; j < nums[i].length; j++) {
+				sum += nums[i][j];
+				count++;
+			}
+		}
+		float ave = (float)sum / count;
+		System.out.println(ave);
+	}
+
+}

Question08-Method/.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>

Question08-Method/.gitignore

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

Question08-Method/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question08-Method</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>

Question08-Method/.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

Question08-Method/.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>

Question08-Method/src/main/java/Question8_1.java

@@ -0,0 +1,12 @@
+
+public class Question8_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		hello();
+	}
+
+	public static void hello() {
+		System.out.println("こんにちは");
+	}
+}

Question08-Method/src/main/java/Question8_2.java

@@ -0,0 +1,12 @@
+
+public class Question8_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		hello("山田");
+	}
+
+	public static void hello(String str) {
+		System.out.println("こんにちは" + str + "です");
+	}
+}

Question08-Method/src/main/java/Question8_3.java

@@ -0,0 +1,13 @@
+
+public class Question8_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String str = hello();
+		System.out.println(str);
+	}
+
+	public static String hello() {
+		return "こんにちは";
+	}
+}

Question08-Method/src/main/java/Question8_4.java

@@ -0,0 +1,14 @@
+
+public class Question8_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int total = 0;
+		total = sum(1, 2);
+		System.out.println(total);
+	}
+
+	public static int sum(int x, int y) {
+		return x + y;
+	}
+}

Question08-Method/src/main/java/Question8_5.java

@@ -0,0 +1,27 @@
+import java.util.Scanner;
+
+public class Question8_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		System.out.println("1つ目の数値を入力してください");
+		Scanner sc = new Scanner(System.in);
+		int num1;
+		num1 = sc.nextInt();
+		System.out.println(num1);
+		
+		System.out.println("2つ目の数値を入力してください");
+		int num2;
+		num2 = sc.nextInt();
+		System.out.println(num2);
+		
+		int total = 0;
+		total = sum(num1, num2);
+		System.out.println(total);
+	}
+	
+	public static int sum(int num1, int num2) {
+		return num1 + num2;
+	}
+
+}

Question08-Method/src/main/java/Question8_6.java

@@ -0,0 +1,17 @@
+import java.util.Arrays;
+
+public class Question8_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] array = addArray(10, 20);
+		System.out.println(Arrays.toString(array));
+	}
+
+	public static int[] addArray(int x, int y) {
+		int[] array = new int[2];
+		array[0] = x;
+		array[1] = y;
+		return array;
+	}
+}

Question08-Method/src/main/java/Question8_7.java

@@ -0,0 +1,27 @@
+
+public class Question8_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		printValue("こんにちは");
+		printValue("100");
+		printValue("10.1");
+		printValue("A");
+	}
+
+	public static void printValue(String str) {
+		System.out.println("引数は" + str + "です");
+	}
+	
+	public static void printValue(int i) {
+		System.out.println("引数は" + i + "です");
+	}
+	
+	public static void printValue(float f) {
+		System.out.println("引数は" + f + "です");
+	}
+	
+	public static void printValue(char ch) {
+		System.out.println("引数は" + ch + "です");
+	}
+}

Question08-Method/src/main/java/Question8_8.java

@@ -0,0 +1,25 @@
+
+public class Question8_8 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int total = 0;
+		total = sum(1, 2);
+		System.out.println(total);
+		
+		total = sum(1, 2, 3);
+		System.out.println(total);
+		
+		total = sum(1, 2, 3, 4);
+		System.out.println(total);
+		
+	}
+	
+	public static int sum(int... numbers) {
+		int total = 0;
+		for(int n : numbers) {
+			total += n;
+		}
+		return total;
+	}
+}

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/Question9_1.java

@@ -0,0 +1,9 @@
+
+public class Question9_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		Util.hello();
+	}
+
+}

Question09-Package/src/main/java/Question9_2.java

@@ -0,0 +1,9 @@
+
+public class Question9_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		common.Util.showSum(1, 2);
+	}
+
+}

Question09-Package/src/main/java/Question9_3.java

@@ -0,0 +1,9 @@
+import  common.Util;
+public class Question9_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		Util.showSum(1, 2);
+	}
+
+}

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

@@ -0,0 +1,6 @@
+
+public class Util {
+	public static void hello() {
+		System.out.println("こんにちは");
+	}
+}

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

@@ -0,0 +1,7 @@
+package common;
+
+public class Util {
+	public static void showSum(int num1, int num2) {
+		System.out.println(num1 + num2);
+	}
+}

Question10-InstanceAndClass/.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>

Question10-InstanceAndClass/.gitignore

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

Question10-InstanceAndClass/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question10-InstanceAndClass</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>

Question10-InstanceAndClass/.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

Question10-InstanceAndClass/.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>

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

@@ -0,0 +1,9 @@
+
+public class Calculation {
+	int baseNum;
+	
+	
+	public void add(int num) {
+		this.baseNum += num;
+	}
+}

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

@@ -0,0 +1,17 @@
+import java.util.Random;
+
+public class Car {
+	String color;
+	int gasoline;
+	
+	public int run() {
+		this.gasoline -= 1;
+		if(this.gasoline >= 0) {
+			Random rand = new Random();
+			int	num = rand.nextInt(15) + 1;
+			return num;
+		}else {
+			return -1;
+		}
+	}
+}

Question10-InstanceAndClass/src/main/java/Question10_1.java

@@ -0,0 +1,15 @@
+
+public class Question10_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		User user = new User();
+		
+		user.id = 1000;
+		user.name = "山田太郎";
+		
+		System.out.println(user.id);
+		System.out.println(user.name);
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Question10_2.java

@@ -0,0 +1,14 @@
+
+public class Question10_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		User user = new User();
+		
+		user.id = 2000;
+		user.name = "佐藤二郎";
+		
+		user.printProfile();
+	}
+
+}