20261027

Question14-Interface/.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>

Question14-Interface/.gitignore

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+/build/

Question14-Interface/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question14-Interface</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>

Question14-Interface/.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

Question14-Interface/.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>

Question14-Interface/src/main/java/Book.java

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+
+public interface Book {
+	
+	String bookname;
+	
+	
+	//メソッドの定義
+	void bookPrint();
+	
+	String chapter(String chapter1,String chapter2,String chapter3,String chapter4,String chapter5);
+	
+}

Question14-Interface/src/main/java/Question14_01.java

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+
+public class Question14_01 {
+	public static void main(String[] args) {
+		Book book = new Book();
+		book.bookname = "プログラミング基礎入門";
+		
+		System.out.println(book.chapter());
+	}
+}

Question14-Interface/src/main/java/programmingBook.java

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+
+public class programmingBook implements Book {
+	
+	String bookname;
+	
+	public void bookPrint() {
+		System.out.println("プログラミング基礎入門");
+	}
+	
+	public String chapter(String chapter1,String chapter2,String chapter3,String chapter4,String chapter5) {
+		return chapter1+"/"+ chapter2 +"/"+ chapter3 +"/"+ chapter4 +"/"+ chapter5;
+	}
+
+}