1030自主学習

Question07-Array/.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>

Question07-Array/.gitignore

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+/build/

Question07-Array/.project

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+<?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

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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

Question07-Array/.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>

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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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

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+
+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);
+	}
+
+}