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Add Lesson 11 code and HW solution
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‎Lesson11.HWSolution/.gitignore

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# Created by .ignore support plugin (hsz.mobi)
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### Example user template template
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### Example user template
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# IntelliJ project files
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.idea
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*.iml
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out
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gen### macOS template
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# General
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.DS_Store
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.AppleDouble
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.LSOverride
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# Icon must end with two \r
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Icon
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# Thumbnails
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._*
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# Files that might appear in the root of a volume
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.DocumentRevisions-V100
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.fseventsd
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.Spotlight-V100
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.TemporaryItems
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.Trashes
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.VolumeIcon.icns
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.com.apple.timemachine.donotpresent
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# Directories potentially created on remote AFP share
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.AppleDB
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.AppleDesktop
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Network Trash Folder
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Temporary Items
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.apdisk
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### Linux template
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*~
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# temporary files which can be created if a process still has a handle open of a deleted file
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.fuse_hidden*
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# KDE directory preferences
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.directory
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# Linux trash folder which might appear on any partition or disk
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.Trash-*
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# .nfs files are created when an open file is removed but is still being accessed
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.nfs*
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### Java template
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# Compiled class file
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*.class
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# Log file
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*.log
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# BlueJ files
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*.ctxt
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# Mobile Tools for Java (J2ME)
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.mtj.tmp/
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# Package Files #
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*.jar
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*.war
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*.nar
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*.ear
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*.zip
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*.tar.gz
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*.rar
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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### Windows template
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# Windows thumbnail cache files
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Thumbs.db
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ehthumbs.db
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ehthumbs_vista.db
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# Dump file
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*.stackdump
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# Folder config file
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[Dd]esktop.ini
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# Recycle Bin used on file shares
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$RECYCLE.BIN/
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# Windows Installer files
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*.cab
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*.msi
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*.msix
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*.msm
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*.msp
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# Windows shortcuts
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*.lnk
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### Maven template
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target/
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pom.xml.tag
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pom.xml.releaseBackup
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pom.xml.versionsBackup
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pom.xml.next
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release.properties
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dependency-reduced-pom.xml
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buildNumber.properties
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.mvn/timing.properties
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# Avoid ignoring Maven wrapper jar file (.jar files are usually ignored)
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!/.mvn/wrapper/maven-wrapper.jar
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‎Lesson11.HWSolution/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>ru.alishev.springcourse</groupId>
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<artifactId>HWSolution</artifactId>
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<version>1.0-SNAPSHOT</version>
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<packaging>war</packaging>
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<name>spring-ioc-app1 Maven Webapp</name>
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<!-- FIXME change it to the project's website -->
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<url>http://www.example.com</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>1.7</maven.compiler.source>
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<maven.compiler.target>1.7</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.11</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-core</artifactId>
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<version>5.1.4.RELEASE</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-beans</artifactId>
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<version>5.1.4.RELEASE</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context</artifactId>
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<version>5.1.4.RELEASE</version>
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</dependency>
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</dependencies>
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<build>
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<finalName>spring-ioc-app1</finalName>
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<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
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<plugins>
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>3.1.0</version>
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</plugin>
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<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.22.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-war-plugin</artifactId>
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<version>3.2.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.2</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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</project>

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/ClassicalMusic.java

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package ru.alishev.springcourse;
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import org.springframework.stereotype.Component;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author Neil Alishev
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*/
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@Component
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public class ClassicalMusic implements Music {
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private List<String> songs = new ArrayList<>();
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// Блок инициализации объекта (англ. Instance initialization block)
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// Выполняется каждый раз, когда создается объект класса
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{
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songs.add("Hungarian Rhapsody");
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songs.add("Symphony no. 5 in C Minor, op. 67");
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songs.add("Night on Bald Mountain");
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}
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@Override
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public List<String> getSongs() {
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return songs;
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}
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}

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/Music.java

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package ru.alishev.springcourse;
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import java.util.List;
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/**
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* @author Neil Alishev
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*/
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public interface Music {
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// Интерфейс тоже поменяли
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List<String> getSongs();
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}

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/MusicGenre.java

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package ru.alishev.springcourse;
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/**
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* @author Neil Alishev
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*/
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public enum MusicGenre {
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CLASSICAL, ROCK
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}

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/MusicPlayer.java

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package ru.alishev.springcourse;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import java.util.Random;
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/**
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* @author Neil Alishev
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*/
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@Component
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public class MusicPlayer {
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private ClassicalMusic classicalMusic;
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private RockMusic rockMusic;
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@Autowired
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public MusicPlayer(ClassicalMusic classicalMusic, RockMusic rockMusic) {
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this.classicalMusic = classicalMusic;
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this.rockMusic = rockMusic;
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}
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public void playMusic(MusicGenre genre) {
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Random random = new Random();
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// случайное целое число между 0 и 2
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int randomNumber = random.nextInt(3);
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if (genre == MusicGenre.CLASSICAL) {
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// случайная классическая песня
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System.out.println(classicalMusic.getSongs().get(randomNumber));
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} else {
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// случайная рок песня
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System.out.println(rockMusic.getSongs().get(randomNumber));
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}
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}
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}

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/RockMusic.java

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package ru.alishev.springcourse;
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import org.springframework.stereotype.Component;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author Neil Alishev
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*/
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@Component
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public class RockMusic implements Music {
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private List<String> songs = new ArrayList<>();
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// Блок инициализации объекта (англ. Instance initialization block)
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// Выполняется каждый раз, когда создается объект класса
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{
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songs.add("Wind cries Mary");
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songs.add("Paint it black");
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songs.add("Can't seem to make you mine");
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}
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@Override
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public List<String> getSongs() {
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return songs;
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}
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}

‎Lesson11.HWSolution/src/main/java/ru/alishev/springcourse/TestSpring.java

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package ru.alishev.springcourse;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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/**
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* @author Neil Alishev
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*/
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public class TestSpring {
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public static void main(String[] args) {
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ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
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"applicationContext.xml"
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);
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MusicPlayer musicPlayer = context.getBean("musicPlayer", MusicPlayer.class);
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musicPlayer.playMusic(MusicGenre.CLASSICAL);
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musicPlayer.playMusic(MusicGenre.ROCK);
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context.close();
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}
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}

‎Lesson11.HWSolution/src/main/resources/applicationContext.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:context="http://www.springframework.org/schema/context"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context.xsd">
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<context:component-scan base-package="ru.alishev.springcourse" />
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</beans>

‎Lesson11.HWSolution/src/main/webapp/WEB-INF/web.xml

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<!DOCTYPE web-app PUBLIC
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"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
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"http://java.sun.com/dtd/web-app_2_3.dtd" >
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<web-app>
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<display-name>Archetype Created Web Application</display-name>
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</web-app>

‎Lesson11.HWSolution/src/main/webapp/index.jsp

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<html>
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<body>
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<h2>Hello World!</h2>
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</body>
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</html>

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