Added structure

.gitignore

+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file

.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/checkstyle-idea.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CheckStyle-IDEA" serialisationVersion="2">
+    <checkstyleVersion>10.9.3</checkstyleVersion>
+    <scanScope>JavaOnly</scanScope>
+    <copyLibs>true</copyLibs>
+    <option name="thirdPartyClasspath" />
+    <option name="activeLocationIds" />
+    <option name="locations">
+      <list>
+        <ConfigurationLocation id="bundled-sun-checks" type="BUNDLED" scope="All" description="Sun Checks">(bundled)</ConfigurationLocation>
+        <ConfigurationLocation id="bundled-google-checks" type="BUNDLED" scope="All" description="Google Checks">(bundled)</ConfigurationLocation>
+      </list>
+    </option>
+  </component>
+</project>
\ No newline at end of file

.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="18" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

pom.xml

+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>nl.utwente.di</groupId>
+	<artifactId>bookQuote</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>war</packaging>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<build>
+		<finalName>${project.artifactId}</finalName>
+		<plugins>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.10.1</version>
+				<configuration>
+					<source>17</source>
+					<target>17</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-war-plugin</artifactId>
+				<version>3.3.2</version>
+				<configuration>
+					<filteringDeploymentDescriptors>true</filteringDeploymentDescriptors>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+	<dependencies>
+
+		<!-- https://mvnrepository.com/artifact/jakarta.servlet/jakarta.servlet-api -->
+		<dependency>
+   			<groupId>jakarta.servlet</groupId>
+    		<artifactId>jakarta.servlet-api</artifactId>
+    		<version>6.0.0</version>
+    		<scope>provided</scope>
+		</dependency>
+
+		<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-api</artifactId>
+			<version>5.9.3</version>
+			<scope>test</scope>
+		</dependency>
+
+
+	</dependencies>
+</project>

src/main/java/nl/utwente/di/bookQuote/BookQuote.java

+package nl.utwente.di.bookQuote;
+
+import java.io.*;
+import jakarta.servlet.*;
+import jakarta.servlet.http.*;
+
+/** Example of a Servlet that gets an ISBN number and returns the book price
+ */
+
+public class BookQuote extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+	private Quoter quoter;
+	
+    public void init() throws ServletException {
+    	quoter = new Quoter();
+    }	
+	
+  public void doGet(HttpServletRequest request,
+                    HttpServletResponse response)
+                    throws ServletException, IOException {
+
+    response.setContentType("text/html");
+    PrintWriter out = response.getWriter();
+    String title = "Book Quote";
+    
+    // Done with string concatenation only for the demo
+    // Not expected to be done like this in the project
+    out.println("<!DOCTYPE HTML>\n" +
+                "<HTML>\n" +
+                "<HEAD><TITLE>" + title + "</TITLE>" +
+                "<LINK REL=STYLESHEET HREF=\"styles.css\">" +
+                		"</HEAD>\n" +
+                "<BODY BGCOLOR=\"#FDF5E6\">\n" +
+                "<H1>" + title + "</H1>\n" +              
+                "  <P>ISBN number: " +
+                   request.getParameter("isbn") + "\n" +
+                "  <P>Price: " +
+                   quoter.getBookPrice(request.getParameter("isbn")) +
+                "</BODY></HTML>");
+  }
+}

src/main/java/nl/utwente/di/bookQuote/Quoter.java

+package nl.utwente.di.bookQuote;
+
+import java.util.HashMap;
+
+public class Quoter {
+    private static HashMap<String, Double> bookPrices = new HashMap<>();
+
+    public Quoter() {
+        bookPrices.put("1", 10.0);
+        bookPrices.put("2", 45.0);
+        bookPrices.put("3", 20.0);
+        bookPrices.put("4", 35.0);
+        bookPrices.put("5", 50.0);
+        bookPrices.put("others", 0.0);
+    }
+
+    public double getBookPrice(String isbn) {
+        if (bookPrices.containsKey(isbn)) {
+            return bookPrices.get(isbn);
+        } else {
+            return 0;
+        }
+    }
+}

src/main/webapp/WEB-INF/web.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee
+                      https://jakarta.ee/xml/ns/jakartaee/web-app_6_0.xsd"
+  version="6.0">
+  
+  <display-name>di.bookQuote</display-name>
+  
+  <welcome-file-list>
+    <welcome-file>index.html</welcome-file>
+    <welcome-file>index.htm</welcome-file>
+    <welcome-file>index.jsp</welcome-file>
+    <welcome-file>default.html</welcome-file>
+    <welcome-file>default.htm</welcome-file>
+    <welcome-file>default.jsp</welcome-file>
+  </welcome-file-list>
+  <servlet>
+    <description>BookQuote Servlet</description>
+    <display-name>BookQuote</display-name>
+    <servlet-name>BookQuote</servlet-name>
+    <servlet-class>nl.utwente.di.bookQuote.BookQuote</servlet-class>
+  </servlet>
+  <servlet-mapping>
+    <servlet-name>BookQuote</servlet-name>
+    <url-pattern>/bookQuote</url-pattern>
+  </servlet-mapping>
+</web-app>
\ No newline at end of file

src/main/webapp/index.html

+<!DOCTYPE HTML>
+<!-- Front end for the webBookQuote Servlet. -->
+
+<html lang="en">
+<head>
+<title>Web Book Quote Application</title>
+<link rel="stylesheet" href="styles.css">
+<meta charset="UTF-8">
+</head>
+
+<body>
+<h1>Web Book Quote Application</h1>
+
+<form ACTION="./bookQuote">
+  <p>Enter ISBN number:  <input TYPE="TEXT" NAME="isbn"></p>
+  <input TYPE="SUBMIT">
+</form>
+
+</body>
+</html>

src/main/webapp/styles.css

+BODY { background-color: WHITE }
+
+H1 { color: PURPLE;
+     text-align: left;
+     font-size: 28px;
+     font-family: Arial, Helvetica, sans-serif;
+     font-weight: normal
+}
+.LARGER { font-size: 120% }
+.TINY { font-size: 50% }
+H2 { color: #440000;
+     text-align: left;
+     font-family: Arial, Helvetica, sans-serif
+}
+H3 { color: #440000;
+     text-align: left;
+     font-family: Arial, Helvetica, sans-serif
+}
+UL { margin-top: 0;
+     border-top-width: 0;
+     padding-top: 0
+}
+
+P { color: BLACK;
+	text-align: left;
+	font-size: 20px;
+	font-family: Arial, Helvetica, sans-serif
+}
+
+FORM { 	color: BLACK;
+		text-align: left;
+		font-size: 20px;
+		font-family: Arial, Helvetica, sans-serif
+}
+
+PRE { font-size: 105%;
+}
+CODE { font-size: 105%; 
+}
+.TOC { font-size: 90%;
+       font-weight: bold;
+       font-family: Arial, Helvetica, sans-serif
+}
+TH.COLORED { background-color: #FFAD00
+}
+TR.COLORED { background-color: #FFAD00
+}
+TH.TITLE   { background-color: #EF8429;
+             font-size: 40px;
+             font-family: Arial, Helvetica, sans-serif;
+}
+A:hover { color: red }

src/test/java/nl/utwente/di/bookQuote/TestQuoter.java

+package nl.utwente.di.bookQuote;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class TestQuoter {
+
+    @Test
+    public void testBook1() throws Exception {
+        Quoter quoter = new Quoter();
+        double price = quoter.getBookPrice("1");
+        Assertions.assertEquals(10.0, price, 0.0, "Price of book 1");
+
+    }
+}