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10/30自習

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平山　紗帆
2026-10-30 17:49:41 +09:00
parent d9529e2971
commit 0053058bfa
108 changed files with 1499 additions and 0 deletions
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11
Question01-StartProgram/.project Normal file
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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>

6
Question02-Expressions/.classpath Normal file
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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>

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Question02-Expressions/.gitignore vendored Normal file
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/build/

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Question02-Expressions/.project Normal file
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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>

9
Question02-Expressions/.settings/org.eclipse.jdt.core.prefs Normal file
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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
Question02-Expressions/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

35
Question02-Expressions/src/main/java/Question02_1.java Normal file
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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);
}
}

13
Question02-Expressions/src/main/java/Question02_2.java Normal file
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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);
}
}

13
Question02-Expressions/src/main/java/Question02_3.java Normal file
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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);
}
}

15
Question02-Expressions/src/main/java/Question02_4.java Normal file
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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);
}
}

15
Question02-Expressions/src/main/java/Question02_5.java Normal file
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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。");
}
}

13
Question02-Expressions/src/main/java/Question02_6.java Normal file
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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);
}
}

12
Question02-Expressions/src/main/java/Question02_7.java Normal file
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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);
}
}

17
Question02-Expressions/src/main/java/Question02_8.java Normal file
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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。");
}
}

6
Question03-if/.classpath Normal file
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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>

1
Question03-if/.gitignore vendored Normal file
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/build/

23
Question03-if/.project Normal file
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<?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>

9
Question03-if/.settings/org.eclipse.jdt.core.prefs Normal file
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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
Question03-if/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

14
Question03-if/src/main/java/Question03_1.java Normal file
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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");
}
}
}

16
Question03-if/src/main/java/Question03_2.java Normal file
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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");
}
}
}

14
Question03-if/src/main/java/Question03_3.java Normal file
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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。");
}
}
}

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Question03-if/src/main/java/Question03_4.java Normal file
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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();
}
}

6
Question04-while/.classpath Normal file
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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>

1
Question04-while/.gitignore vendored Normal file
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/build/

23
Question04-while/.project Normal file
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<?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>

9
Question04-while/.settings/org.eclipse.jdt.core.prefs Normal file
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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
Question04-while/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

16
Question04-while/src/main/java/Question04_1.java Normal file
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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);
}
}
}

16
Question04-while/src/main/java/Question04_2.java Normal file
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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);
}
}

20
Question04-while/src/main/java/Question04_3.java Normal file
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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);
}
}
}

34
Question04-while/src/main/java/Question04_4.java Normal file
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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 =====");
}
}

51
Question04-while/src/main/java/Question04_5.java Normal file
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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;
}
}
}
}

6
Question05-switch/.classpath Normal file
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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>

1
Question05-switch/.gitignore vendored Normal file
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/build/

23
Question05-switch/.project Normal file
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<?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>

9
Question05-switch/.settings/org.eclipse.jdt.core.prefs Normal file
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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
Question05-switch/.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>

35
Question05-switch/src/main/java/Question05_1.java Normal file
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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;
}
}
}

42
Question05-switch/src/main/java/Question05_2.java Normal file
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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");
}
}
}

67
Question05-switch/src/main/java/Question05_3.java Normal file
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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");
};
}
}

6
Question06-for/.classpath Normal file
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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>

1
Question06-for/.gitignore vendored Normal file
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/build/

23
Question06-for/.project Normal file
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<?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>

9
Question06-for/.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
Question06-for/.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>

12
Question06-for/src/main/java/Question06_1.java Normal file
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@@ -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);
}
}
}

12
Question06-for/src/main/java/Question06_2.java Normal file
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@@ -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("■");
}
}
}

14
Question06-for/src/main/java/Question06_3.java Normal file
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@@ -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);
}
}
}
}

20
Question06-for/src/main/java/Question06_4.java Normal file
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@@ -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);
}
}
}
}

16
Question06-for/src/main/java/Question06_5.java Normal file
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@@ -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);
}
}
}
}

13
Question06-for/src/main/java/Question06_6.java Normal file
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@@ -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("■");
}
}
}

17
Question06-for/src/main/java/Question06_7.java Normal file
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@@ -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);
}
}
}

6
Question07-Array/.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
Question07-Array/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

23
Question07-Array/.project Normal file
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@@ -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>

9
Question07-Array/.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
Question07-Array/.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>

17
Question07-Array/src/main/java/Question07_1.java Normal file
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@@ -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]);
}
}

15
Question07-Array/src/main/java/Question07_10.java Normal file
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@@ -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));
}
}

12
Question07-Array/src/main/java/Question07_2.java Normal file
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@@ -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]);
}
}

14
Question07-Array/src/main/java/Question07_3.java Normal file
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@@ -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] + ",");
}
}
}

14
Question07-Array/src/main/java/Question07_4.java Normal file
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@@ -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]);
}
}
}

17
Question07-Array/src/main/java/Question07_5.java Normal file
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@@ -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);
}
}

14
Question07-Array/src/main/java/Question07_6.java Normal file
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@@ -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] + ",");
}
}
}

19
Question07-Array/src/main/java/Question07_7.java Normal file
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@@ -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]);
}
}

18
Question07-Array/src/main/java/Question07_8.java Normal file
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@@ -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 + ",");
}
}
}

21
Question07-Array/src/main/java/Question07_9.java Normal file
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@@ -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);
}
}

6
Question08-Method/.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
Question08-Method/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

23
Question08-Method/.project Normal file
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@@ -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>

9
Question08-Method/.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
Question08-Method/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
View File

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

15
Question08-Method/src/main/java/Question08_1.java Normal file
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@@ -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");
}
}

15
Question08-Method/src/main/java/Question08_2.java Normal file
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@@ -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");
}
}

18
Question08-Method/src/main/java/Question08_3.java Normal file
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@@ -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;
}
}

31
Question08-Method/src/main/java/Question08_4.java Normal file
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@@ -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);
}
}

24
Question08-Method/src/main/java/Question08_5.java Normal file
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@@ -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;
}
}

15
Question08-Method/src/main/java/Question08_6.java Normal file
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@@ -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);
}
}
}

17
Question08-Method/src/main/java/Question08_7.java Normal file
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@@ -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");
}
}

9
Question08-Method/src/main/java/Question08_8.java Normal file
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@@ -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
}
}

6
Question09-Package/.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
Question09-Package/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

23
Question09-Package/.project Normal file
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@@ -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>

9
Question09-Package/.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
Question09-Package/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
View File

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

5
Question09-Package/src/main/java/Question09_1.java Normal file
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@@ -0,0 +1,5 @@
public class Question09_1 {
}

7
Question09-Package/src/main/java/Util.java Normal file
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@@ -0,0 +1,7 @@
public class Util{
void hello(){
System.out.println("こんにちは");
}
}

10
Question09-Package/src/main/java/package01/Util.java Normal file
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@@ -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
}
}

6
Question10-InstanceAndClass/.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
Question10-InstanceAndClass/.gitignore vendored Normal file
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@@ -0,0 +1 @@
/build/

23
Question10-InstanceAndClass/.project Normal file
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@@ -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>

9
Question10-InstanceAndClass/.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
Question10-InstanceAndClass/.settings/org.eclipse.wst.common.project.facet.core.xml Normal file
View File

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

18
Question10-InstanceAndClass/src/main/java/Question10_1.java Normal file
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@@ -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();
}
}

17
Question10-InstanceAndClass/src/main/java/Question10_2.java Normal file
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@@ -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();
}
}

27
Question10-InstanceAndClass/src/main/java/Question10_3.java Normal file
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@@ -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);
}
}

17
Question10-InstanceAndClass/src/main/java/Question10_4.java Normal file
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@@ -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();
}
}

12
Question10-InstanceAndClass/src/main/java/Question10_Calculation.java Normal file
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@@ -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);
}
}

14
Question10-InstanceAndClass/src/main/java/Question10_Student.java Normal file
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@@ -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
}

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