Blog Archives
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02: Spring Cloud to register client with Eureka Discovery Server Tutorial

This extends Spring Cloud with Eureka Discovery Server Tutorial. Step 1: Go to https://start.spring.io/ to create a skeleton spring-boot application. Add Eureka Discovery Client and Server as shown below: Click on “generate” to download the “my-sample-client-project.zip” file. … Read more ›...

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02: Websphere MQ Client API Tutorial – Message Receiver

Step 1: You need to have the Webspeher MQ client jar “com.ibm.mq.allclient.jar” in your project at “${basedir}/lib”. You can refer to it via Maven as a local file based repository.

Step 2: Use the “Websphere MQ API” to receive a “MQMessage”

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02: ⏯ Spring DIP, DI, & IoC interview questions and answers Video

Apologies for the echoing, and it has been rectified in the other videos.

Relevant Links

1. Spring DIP, DI, & IoC interview questions and answers.

2. 13 Spring basics interview questions & answers.

3.

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02. Getting started with Java packages, projects, classpath & jar files

This extends “Setting up Java step by step tutorial“.

What are packages & why are they important?

A java package is a group of similar types of classes, interfaces and sub-packages. In Java you have built-in packages in the src.zip with *.java files &

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02a: ⏯ JDBC with MySQL, Datasource, Connection Pool, and Prepared Statements Video Tutorial

Related Links 1. JDBC with MySQL, Datasource, and connection pool Tutorial. 2. JDBC with MySQL and PreparedStatements Tutorial. Extends ⏯ MySQL database beginner video tutorial ▶ JDBC with MySQL Beginner Video Tutorial JDBC Interview Q&As 1. … Read more ›...

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02a. ⏯ Getting started with Java packages, projects, classpath & jar files video tutorial

Related Links

1. Getting started with Java packages, projects, classpath & jar files

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02b. ⏯ Java project with third-party libraries & unit testing without an IDE

Related Links

1. Java project with packages & jar file dependency without an IDE & build tool tutorial

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03: Akka tutorial “ask” request – response pattern in Java

This tutorial extends the previous tutorial Simple Akka tutorial in Java step by step to apply the Ask pattern. Tell is a “Fire-and-Forget” pattern, and whereas an “ask” sends a message with a Future for the response. Request-Response pattern in Akka with “Ask”… Read more ›...

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03: Akka tutorial “ask” request – response pattern Scala way

This tutorial extends Simple Akka Tutorial in Scala step by step for the Java developers and Akka tutorial “ask” request – response pattern in Java. Request-Response pattern in Akka with “Ask” Step 1: The “Producer.java” using the “ask” pattern to send a mesage and then receive response via a Future...

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03: Apache Kafka Connector Tutorial

This extends the Getting started with Apache Kafka on Mac tutorial. Kafka works with different kinds of data sources like file, JDBC, JMS, etc. What is the purpose of a Kafka connector?… Read more ›...

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03: Docker Tutorial – Java & Maven with a jar file

This extends the 01: Docker Tutorial – compile & run Helloworld.java. Maven pom.xml

The run.sh file

Create src/main/java folder Maven requires .java files to be in the folder src/main/java folder. So create the folder and move com/myapp/* under that as shown in the above diagram. … Read more...

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03: Drools with Decision tables (Excel spreadsheet) tutorial

This is an extension to Drools tutorial with Maven. This externalize the rules criteria to an Excel spreadsheet license.xls. This means the age condition is supplied in the xls file under src/main/resources/drools/license.xls. Step 1: Maven pom.xml file dependencies. … Read more ›...

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03: Getting started with Jenkins build triggers on Docker tutorial

This extends the 02: Getting started with Jenkins Multibranch pipeline on Docker tutorial. The focus on this tutorial is the build triggers where the Jenkins pipelines can be executed based on different triggers as opposed to just clicking on the “Build Now” … Read more ›...

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300+ Java Interview Questions - FAQs

Tutorials on Java & Big Data