完了済

Question08-Method/.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>

Question08-Method/.gitignore

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+/build/

Question08-Method/.project

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+<?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

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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

Question08-Method/.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>

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

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+
+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

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+
+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 name ) {
+		System.out.println("こんにちは。"+name+"です。");
+	}
+
+}

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

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+
+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;
+		str = hello();
+		
+		System.out.println(str);
+
+	}
+	
+	public static String hello() {
+		return "こんにちは";
+	}
+
+}

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

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+
+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 sum;
+		int x = 1;
+		int y = 2;
+		
+		sum = sum(x,y);
+		System.out.println(sum);
+
+	}
+	
+	public static int sum( int x, int y ) {
+		return x+y;
+	}
+
+}

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

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+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
+		
+		int num1, num2;
+		Scanner sc = new Scanner(System.in);
+		
+		System.out.println("1つ目の数値を入力してください");
+		num1 = sc.nextInt();
+		
+		System.out.println("2つ目の数値を入力してください");
+		num2 = sc.nextInt();
+		
+		sc.close();
+		
+		System.out.println(sum(num1,num2));
+
+	}
+	
+	public static int sum( int x, int y ) {
+		return x+y;
+	}
+
+}

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

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+
+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(array[0]);
+		System.out.println(array[1]);
+		
+	}
+	
+	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

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+
+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(10.1F);
+		printValue('A');
+
+	}
+	
+	public static void printValue( String arg ) {
+		System.out.println("引数は"+arg+"です");
+	}
+	
+	public static void printValue( int arg ) {
+		System.out.println("引数は"+arg+"です");
+	}
+
+	public static void printValue( float arg ) {
+		System.out.println("引数は"+arg+"です");
+	}
+
+	public static void printValue( char arg ) {
+		System.out.println("引数は"+arg+"です");
+	}
+
+}

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

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+
+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
+		
+		System.out.println(sum(1,2));
+		System.out.println(sum(1,2,3));
+		System.out.println(sum(1,2,3,4));
+
+	}
+	
+	public static int sum( int x1, int x2 ) {
+		return x1+x2;
+	}
+	
+	public static int sum( int x1, int x2, int x3 ) {
+		return x1+x2+x3;
+	}
+	
+	public static int sum( int x1, int x2, int x3, int x4 ) {
+		return x1+x2+x3+x4;
+	}
+	
+}