10/30自習

Question01-StartProgram/.project

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question01-StartProgram</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+	</natures>
+</projectDescription>

Question02-Expressions/.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>

Question02-Expressions/.gitignore

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

Question02-Expressions/.project

@@ -0,0 +1,23 @@
+<?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

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

Question02-Expressions/src/main/java/Question02_1.java

@@ -0,0 +1,35 @@
+
+public class Question02_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String s = "変数";
+		
+		int numa = 2;
+		int numb = 5;
+		int numc = 6;
+		int numd = 17;
+		
+		//sum
+		int sum = numc + numa;
+		System.out.println(s + "sum" + "  :" + sum);
+		
+		//diff
+		int diff = numc - numa;
+		System.out.println(s + "diff" + " :" + diff);
+		
+		//mulch
+		int mulch = numc * numa;
+		System.out.println(s + "mulch" + ":" + mulch);
+		
+		//div
+		int div = numc / numa;
+		System.out.println(s + "div" + "  :" + div);
+		
+		//rem
+		int rem = numd % numb;
+		System.out.println(s + "rem" + "  :" + rem);
+ 
+	}
+
+}

Question02-Expressions/src/main/java/Question02_2.java

@@ -0,0 +1,13 @@
+
+public class Question02_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/Question02_3.java

@@ -0,0 +1,13 @@
+
+public class Question02_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 = num + 5;
+		
+		System.out.println(num);
+
+	}
+
+}

Question02-Expressions/src/main/java/Question02_4.java

@@ -0,0 +1,15 @@
+
+public class Question02_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int sum1 = 10;
+		double sum2 = 3.14;
+		
+		double sum = sum1 + sum2;
+		
+		System.out.println(sum);
+
+	}
+
+}

Question02-Expressions/src/main/java/Question02_5.java

@@ -0,0 +1,15 @@
+
+public class Question02_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) + "になります。");
+
+	}
+
+}

Question02-Expressions/src/main/java/Question02_6.java

@@ -0,0 +1,13 @@
+
+public class Question02_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		double a = 9;
+		double b = 2;
+		
+		System.out.println(a / b);
+
+	}
+
+}

Question02-Expressions/src/main/java/Question02_7.java

@@ -0,0 +1,12 @@
+
+public class Question02_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		double num = 1.0;
+		
+		System.out.println((int)num);
+
+	}
+
+}

Question02-Expressions/src/main/java/Question02_8.java

@@ -0,0 +1,17 @@
+
+public class Question02_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;
+		double taxRate = 0.08;
+		
+		int total = price + (int)(price * taxRate);
+		money = money - total;
+		
+		System.out.println("残金は" + money + "円です。");
+
+	}
+
+}

Question03-if/.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>

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/Question03_1.java

@@ -0,0 +1,14 @@
+
+public class Question03_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 100;
+			
+		if(num == 100) {
+			System.out.println("条件に合致しました");
+		}
+
+	}
+
+}

Question03-if/src/main/java/Question03_2.java

@@ -0,0 +1,16 @@
+
+public class Question03_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int num = 65;
+		
+		if(num >= 65) {
+			System.out.println("合格です");
+		} else {
+			System.out.println("不合格です");
+		}
+
+	}
+
+}

Question03-if/src/main/java/Question03_3.java

@@ -0,0 +1,14 @@
+
+public class Question03_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;
+		
+		if((num % 2 == 0) && (num % 5 == 0)) {
+			System.out.println("10は2でも5でも割り切れます。");
+		}
+
+	}
+
+}

Question03-if/src/main/java/Question03_4.java

@@ -0,0 +1,31 @@
+import java.util.Scanner;
+
+public class Question03_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。");
+		
+		
+		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 {
+			System.out.println("雨はまず降らないでしょう");
+		}
+		
+		sc.close();
+
+	}
+
+}

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/Question04_1.java

@@ -0,0 +1,16 @@
+import java.util.Random;
+
+public class Question04_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		Random rand = new Random();
+		int num = rand.nextInt(10);
+
+		while (num != 5) {
+			System.out.println(num);
+			num = rand.nextInt(10);
+		}
+	}
+
+}

Question04-while/src/main/java/Question04_2.java

@@ -0,0 +1,16 @@
+
+public class Question04_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 = num * 2;
+			
+		}
+		System.out.println(num);
+
+	}
+
+}

Question04-while/src/main/java/Question04_3.java

@@ -0,0 +1,20 @@
+import java.util.Random;
+
+public class Question04_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+		Random rand = new Random();
+
+		while (true) {
+			int num = rand.nextInt(10);
+			if (num == 5) {
+				break;
+			}
+			System.out.println(num);
+		}
+
+	}
+
+}

Question04-while/src/main/java/Question04_4.java

@@ -0,0 +1,34 @@
+
+public class Question04_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, progress = 0;
+
+		System.out.println("===== START =====");
+
+		while (map >= progress) {
+
+			System.out.println("Enterキーを押してください。さいころをふります。" + "\n");
+
+			double rand = Math.random() * 6 + 1;
+			int num = (int) rand;
+
+			System.out.println(num + "の目が出ました。");
+			progress += num;
+
+			if (map >= progress) {
+				
+				System.out.println("残りのマスは" + (map - progress) + "マスです。");
+				
+			} else {
+				
+				break;
+			}
+
+		}
+		System.out.println("===== GOAL =====");
+
+	}
+
+}

Question04-while/src/main/java/Question04_5.java

@@ -0,0 +1,51 @@
+import java.util.Random;
+import java.util.Scanner;
+
+
+public class Question04_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("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");
+		String[] hands = {"グー", "チョキ", "パー"};
+		Scanner sc = new Scanner(System.in);
+		int playerHand = sc.nextInt();
+		Random rand = new Random();
+		int npcHand = rand.nextInt(3);
+		
+
+		
+		
+		boolean winFlag = true;
+		
+		while(true) {
+			System.out.println("あなたは" + hands[playerHand] + "を出しました");
+			System.out.println("相手は" + hands[npcHand] + "を出しました");
+			
+			
+			if(npcHand == playerHand) {
+				winFlag = false;
+				System.out.println("引き分け");
+			} else if ((npcHand == 0 && playerHand == 1) || (npcHand == 1 && playerHand == 2) || (npcHand == 2 && playerHand == 0)) {
+				System.out.println("負け");
+				break;
+			} else if((npcHand == 1 && playerHand == 0) || (npcHand == 2 && playerHand == 1) || (npcHand == 0 && playerHand == 2)) {
+				System.out.println("勝ち");
+				break;
+				
+			} while (winFlag) {				
+			} if((npcHand == 0 && playerHand == 1) || (npcHand == 1 && playerHand == 2) || (npcHand == 2 && playerHand == 0)) {
+				System.out.println("負け");
+				break;
+			} else if ((npcHand == 1 && playerHand == 0) || (npcHand == 2 && playerHand == 1) || (npcHand == 0 && playerHand == 2)) {
+				System.out.println("勝ち");
+				break;
+				
+		}
+			}
+		
+	}
+
+}

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/Question05_1.java

@@ -0,0 +1,35 @@
+import java.util.Random;
+
+public class Question05_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。");
+		
+		Random rand = new Random();
+		int num = rand.nextInt(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」です");
+			break;
+		case 3:
+			System.out.println("あなたの運勢は「小吉」です");
+			break;
+		case 4:
+			System.out.println("あなたの運勢は「末吉」です");
+			break;
+		case 5:
+			System.out.println("あなたの運勢は「凶」です");
+			break;
+		}
+
+	}
+
+}

Question05-switch/src/main/java/Question05_2.java

@@ -0,0 +1,42 @@
+import java.util.Scanner;
+public class Question05_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 sca = new Scanner(System.in);
+		int num1 =  sca.nextInt();
+		System.out.println("2つ目の数値を入力してください");
+		Scanner scb = new Scanner(System.in);
+		int num2 =  scb.nextInt();
+		System.out.println("計算方法を選択してください");
+		Scanner scc = new Scanner(System.in);
+		int choice =  scb.nextInt();
+		
+		
+		switch(choice) {
+		
+		case 1:
+			System.out.println(num1 + num2);
+			break;
+		case 2:
+			System.out.println(num1 - num2);
+			break;
+		case 3:
+			System.out.println(num1 * num2);
+			break;
+		case 4:
+			System.out.println(num1 / num2);
+			break;
+		case 5:
+			System.out.println(num1 % num2);
+			break;
+		default:
+			System.out.println("計算に失敗しました");
+			
+		}
+ 
+	}
+
+}

Question05-switch/src/main/java/Question05_3.java

@@ -0,0 +1,67 @@
+import java.util.Random;
+import java.util.Scanner;
+
+public class Question05_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("==========================================");
+		
+		Random randd = new Random();
+		int dealerCard = randd.nextInt(13) + 1;
+		
+		System.out.println("ディーラーのカードは" + dealerCard +"です");
+		
+		Random randm = new Random();
+		int myCard = randm.nextInt(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(dealerCard < myCard) {
+				System.out.println("あなたの勝ちです"); 
+			} else {
+				System.out.println("あなたの負けです"); 
+			break;
+			}
+		case "L" :
+			if(dealerCard > myCard) {
+				System.out.println("あなたの勝ちです");
+			} 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/Question06_1.java

@@ -0,0 +1,12 @@
+
+public class Question06_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 <=99; i++) {
+			System.out.println(i);
+		}
+
+	}
+
+}

Question06-for/src/main/java/Question06_2.java

@@ -0,0 +1,12 @@
+
+public class Question06_2 {
+
+	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_3.java

@@ -0,0 +1,14 @@
+
+public class Question06_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/Question06_4.java

@@ -0,0 +1,20 @@
+
+public class Question06_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 % 3 == 0) {
+				System.out.println("fizz");
+			} else if (i % 5 == 0) {
+				System.out.println("buzz");
+			} else {
+				System.out.println(i);				
+			}
+		}
+
+	}
+
+}

Question06-for/src/main/java/Question06_5.java

@@ -0,0 +1,16 @@
+public class Question06_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 i1 = (int)(Math.random()* 3 + 0);
+			if(i1 == 2) {
+				continue;
+			}else {
+				System.out.println(i1);
+			}
+		}
+		
+	}
+}

Question06-for/src/main/java/Question06_6.java

@@ -0,0 +1,13 @@
+
+public class Question06_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++) {
+			for(int p = 1; p < 5; p++) {
+			System.out.print("■");
+		}
+			System.out.println("■");
+		}
+	}
+}

Question06-for/src/main/java/Question06_7.java

@@ -0,0 +1,17 @@
+
+public class Question06_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int i, p;
+		for(i = 1; i <= 9; i++) {
+			for(p = 1; p < 9; p++) {
+			System.out.print(i * p);
+			}
+		System.out.println(i * p);
+	}
+	
+
+	}
+
+}

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/Question07_1.java

@@ -0,0 +1,17 @@
+
+public class Question07_1 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] number = new int[5];
+		number[0] = 1;
+		number[1] = 3;
+		number[2] = 5;
+		number[3] = 7;
+		number[4] = 9;
+		
+		System.out.println(number[1]);
+
+	}
+
+}

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

@@ -0,0 +1,15 @@
+import java.util.Arrays;
+
+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
+		int[] array = new int[100];
+		for(int i = 0; i < array.length; i++) {
+			array[i] = i + 1;
+		}
+		System.out.println(Arrays.toString(array));
+
+	}
+
+}

Question07-Array/src/main/java/Question07_2.java

@@ -0,0 +1,12 @@
+
+public class Question07_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[] num = {1, 10, 100};
+		
+		System.out.println(num[0] + num[2]);
+
+	}
+
+}

Question07-Array/src/main/java/Question07_3.java

@@ -0,0 +1,14 @@
+
+public class Question07_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] s = {"森", "山", "沼", "島", "平地"};
+		
+		for(int i = 0; i < s.length; i++) {
+			System.out.print(s[i] + ",");
+		}
+
+	}
+
+}

Question07-Array/src/main/java/Question07_4.java

@@ -0,0 +1,14 @@
+
+public class Question07_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		
+		int num[] = new int[1000];
+		for(int i = 0; i <= 1000; i++) {
+			num[i] = i +1;
+			
+			System.out.println(num[i]);
+		}
+	}
+}

Question07-Array/src/main/java/Question07_5.java

@@ -0,0 +1,17 @@
+
+
+public class Question07_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] s = {"森", "山", "沼", "島", "平地"};
+		int rand = s.length;
+		int randomIndex = (int)(Math.random() * rand);
+		
+		String rands = s[randomIndex];
+		System.out.print(rands);
+		
+
+	}
+
+}

Question07-Array/src/main/java/Question07_6.java

@@ -0,0 +1,14 @@
+
+public class Question07_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[] st = {"森", "山", "沼", "島", "平地"};
+		
+		for(int i = st.length-1; i >= 0; i--) {
+			System.out.print(st[i] + ",");
+		}
+
+	}
+
+}

Question07-Array/src/main/java/Question07_7.java

@@ -0,0 +1,19 @@
+
+public class Question07_7 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String[][] time = {
+				{"月", "火", "水", "木", "金"},
+				{"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", "理科"},
+				{"数学", "英語", "英語", "理科", "英語"}
+		};
+		System.out.println(time[2][4]);
+		
+
+	}
+
+}

Question07-Array/src/main/java/Question07_8.java

@@ -0,0 +1,18 @@
+
+public class Question07_8 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[][] num = {
+				{1, 3, 5, 7},
+				{11, 13, 17, 19, 23, 29}
+		};
+				for(int[] row : num ) {
+					for(int nums : row)
+					System.out.print(nums + ",");
+				
+		}
+		
+}
+
+}

Question07-Array/src/main/java/Question07_9.java

@@ -0,0 +1,21 @@
+public class Question07_9 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		int[][] array = {
+				{1, 3, 5, 7},
+				{11, 13, 17, 19, 23, 29}
+		};
+		int sum = 0;
+		int count = 0;
+		for (int i = 0; i < array.length; i++) {
+			for(int s = 0; s < array[i].length; s++) {
+				sum += array[i][s];
+				count++;
+			}
+		}
+		System.out.print((double)sum/(double)count);
+
+	}
+
+}

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/Question08_1.java

@@ -0,0 +1,15 @@
+
+public class Question08_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/Question08_2.java

@@ -0,0 +1,15 @@
+
+public class Question08_2 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		String name = "山田";
+		hello(name);
+	}
+	
+	public static void hello(String name) {
+		
+		System.out.println("こんにちは。" + name + "です");
+	}
+
+}

Question08-Method/src/main/java/Question08_3.java

@@ -0,0 +1,18 @@
+
+public class Question08_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+		String str = "こんにちは";
+		hello(str);
+
+	}
+	public static String hello(String str) {
+		
+		System.out.println(str);
+		
+		return str;
+	}
+
+}

Question08-Method/src/main/java/Question08_4.java

@@ -0,0 +1,31 @@
+
+public class Question08_4 {
+
+	public static void main(String[] args) {
+		//		★0
+		//		sumメソッドの戻り値を変数sumに代入している
+		//		int sum = sum(1, 2);
+
+		//		sumメソッドではなく、変数sumを出力している
+		//		System.out.println(sum);
+
+		
+		//★2
+		//System.out.println(sum(1, 2));
+
+		
+		//★1
+		sum(1, 2);
+	}
+
+	//★0,2
+	//	public static int sum(int x, int y) {
+	//		return x + y;
+	//	}
+
+	
+	//★1
+	public static void sum(int x, int y) {
+		System.out.println(x + y);
+	}
+}

Question08-Method/src/main/java/Question08_5.java

@@ -0,0 +1,24 @@
+import java.util.Scanner;
+
+public class Question08_5 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		Scanner scanner = new Scanner(System.in);
+		
+		System.out.println("1つ目の数値を入力してください");
+		
+		int num1 = scanner.nextInt();
+		
+		System.out.println("2つ目の数値を入力してください");
+		
+		int num2 = scanner.nextInt();
+		int sum = sum(num1, num2);
+		System.out.println(sum);
+
+	}
+public static int sum(int num1, int num2) {
+	return num1 + num2;
+}
+
+}

Question08-Method/src/main/java/Question08_6.java

@@ -0,0 +1,15 @@
+
+public class Question08_6 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		addArray(10, 20);
+		}
+	
+	public static void addArray(int x, int y) {
+		int[] array = {x, y};
+		for(int a : array) {
+			System.out.println(a);
+		}
+	}
+}

Question08-Method/src/main/java/Question08_7.java

@@ -0,0 +1,17 @@
+
+public class Question08_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(Object a) {
+		System.out.println("引数は" + a + "です");
+	}
+
+}

Question08-Method/src/main/java/Question08_8.java

@@ -0,0 +1,9 @@
+
+public class Question08_8 {
+
+	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_1.java

@@ -0,0 +1,5 @@
+
+public class Question09_1 {
+	
+
+}

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

@@ -0,0 +1,7 @@
+
+public class Util{
+	void hello(){
+		System.out.println("こんにちは");
+	}
+
+}

Question09-Package/src/main/java/package01/Util.java

@@ -0,0 +1,10 @@
+package package01;
+
+public class Util {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+
+	}
+
+}

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/Question10_1.java

@@ -0,0 +1,18 @@
+
+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
+		//インスタンス生成
+		Question10_User user = new Question10_User();
+		
+		//代入
+		user.name = "山田太郎";
+		user.id = 1000;
+		
+		//メソッドの呼び出し
+		user.printProfile();
+
+	}
+
+}

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

@@ -0,0 +1,17 @@
+
+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
+		//インスタンス生成
+		Question10_User user = new Question10_User();
+				
+		//代入
+		user.name = "佐藤二郎";
+		user.id = 2000;
+				
+		//メソッドの呼び出し
+		user.printProfile();
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Question10_3.java

@@ -0,0 +1,27 @@
+
+public class Question10_3 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		//インスタンス生成
+		Question10_Student student = new Question10_Student(); 
+			
+			//代入
+			student.studentId = 10;
+			student.name = "田中次郎";
+			student.mail = "test@mail.com";
+			student.password = "pass";
+			
+			
+			//メソッドなし
+			
+			//表示
+			System.out.println(student.studentId);
+			System.out.println(student.name);
+			System.out.println(student.mail);
+			System.out.println(student.password);
+			
+		
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Question10_4.java

@@ -0,0 +1,17 @@
+
+public class Question10_4 {
+
+	public static void main(String[] args) {
+		// TODO 自動生成されたメソッド・スタブ
+		//インスタンス生成
+		Question10_Calculation cal = new Question10_Calculation();
+		
+		//代入
+		cal.baseNum = 100;
+		cal.num = 100;
+		
+		//メソッドの呼び出し
+		cal.add();
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Question10_Calculation.java

@@ -0,0 +1,12 @@
+
+public class Question10_Calculation {
+	//フィールド
+	int baseNum;
+	int num;
+	
+	//メソッド
+	public void add() {
+		System.out.println(this.baseNum + this.num);
+	}
+
+}

Question10-InstanceAndClass/src/main/java/Question10_Student.java

@@ -0,0 +1,14 @@
+
+public class Question10_Student {
+	
+	//フィールド
+	int studentId;
+	String name;
+	String mail;
+	String password;
+	
+	//メソッドなし
+		
+
+}
+