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FROM ubuntu:latest


RUN apt-get install -y language-pack-ja-base language-pack-ja
update-locale LANG=ja_JP.UTF-8 LANGUAGE=”ja_JP:ja”

# for Java
ENV JAVA_HOME /usr/lib/jvm/java-8-oracle
RUN echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | debconf-set-selections && \
    apt-get update && \

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package javaPractice.thread;

class MultiThread {
    public static void main(String args[]) {
	
	new MyThread("One");
	new MyThread("Two");
	new MyThread("Three");
	try {
	    Thread.sleep(10000);

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import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

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import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class FuturesA {

    public static void run() throws Exception {

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public class ObservablesRun {

    public static void main(String[] args) {

	List<String> symbols = Arrays.asList("GOOG", "AAPL", "MSFT", "INTC");
	Observable<StockInfo> feed = StockServer.getFeeed(symbols);
	Disposable subscribe = feed.subscribeWith(new DisposableObserver<StockInfo>() {

	    int count = 0;

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package javaPractice.jdbc;

//Import required packages
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class JdbcExample {

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@Controller
public class BlogController {

    private static final String BLOG_IMAGES = "blogImages";
    private static final String TOMCAT_HOME_PROPERTY = "catalina.home";
    private static final String TOMCAT_HOME_PATH = System.getProperty(TOMCAT_HOME_PROPERTY);
    private static final String BLOG_IMAGES_PATH = TOMCAT_HOME_PATH + File.separator + BLOG_IMAGES;

    private static final File BLOG_IMAGES_DIR = new File(BLOG_IMAGES_PATH);
    private static final String BLOG_IMAGES_DIR_ABSOLUTE_PATH = BLOG_IMAGES_DIR.getAbsolutePath() + File.separator;

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@Service
public class BlogPostServiceImpl implements BlogPostService {

    @Autowired
    private UserService userService;

    @Autowired
    private BlogPostRepository blogPostRepository;

    @Autowired

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@Configuration 
public class WebMvcConfig implements WebMvcConfigurer   {
 
    @Bean
    public ConfigurableServletWebServerFactory webServerFactory() {
        
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
        tomcat.addConnectorCustomizers((TomcatConnectorCustomizer) connector -> {
 
            // configure maxSwallowSize

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@Target({TYPE,ANNOTATION_TYPE}) 
@Retention(RUNTIME)
@Constraint(validatedBy = ContentTypeMultipartFileValidator.class)
@Documented
public @interface ContentType {
 
    String message() default "Please upload  jpg, png or gif and less than 5MB in size";
 
    Class<?>[] groups() default {};