This assumes that you have read the spring batch beginner tutorial & industrial strength part 1. This is the final part. Step 1: The annotated Java classes are referenced directly…
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Blog Archives
00: Create a simple REST API with Spring Boot
Q1. What is the key benefit of using Spring boot?
A1. The key benefit is that you can “build a production ready application from scratch in a matter of minutes”.
Over the years since its inception, Spring has grown to be very complex in terms of the amount of configuration an application requires.…
00: ⏯ MySQL database beginner video tutorial
Step by step MySQL video tutorial to get started with MySQL database. Any decent self-taught projects require a database to store & retrieve data.
Related Links
1. Getting started with MySQL database beginner tutorial.
SQL Interview Q&As
01 : Spring Cloud with Eureka Discovery Server Tutorial
Q1. What is Spring Cloud? A1. Spring Boot is widely used to develop MicroServices. As many organisations deploy these services on the cloud like AWS, etc you need to take…
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01: Getting started with Zookeeper tutorial
Installing Zookeepr on Windows Step 1: Download Zookeeper from http://zookeeper.apache.org/. At the time of writing downloading zookeeper-3.4.11.tar.gz. Step 2: Using 7-zip on windows unpack the gzipped tar file into a…
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01: 14 Unix must-know interview Q&As
Q1 How do you remove the Control-M characters from a file? A1 Using the sed command that replaces Control-M with nothing
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sed 's/^M//g' ReadWriteFile.sh > ReadWriteFileNew.sh |
Note: The ^M is typed on the command…
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01: Apache Flume with JMS source (Websphere MQ) and HDFS sink
Apache Flume is used in the Hadoop ecosystem for ingesting data. In this example, let’s ingest data from Websphere MQ. Step 1: Apache flume is config driven. Hierarchy driven flume…
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01: Apache Hadoop HDFS Tutorial
Step 1: Download the latest version of “Apache Hadoop common” from http://apache.claz.org/hadoop using wget, curl or a browser. This tutorial uses “http://apache.claz.org/hadoop/core/hadoop-2.7.1/”.
Step 2: You can set Hadoop environment variables by appending the following commands to ~/.bashrc file.
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export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1. |
01: Databricks getting started – Spark, Shell, SQL
Step 1: Signup to Databricks community edition – https://databricks.com/try-databricks. Fill in the details and you can leave your mobile number blank. Select “COMMUNITY EDITION” ==“GET STARTED“.
If you have a Cloud account then you can use it.
Step 2: Check your email and click the “link” in the email & reset your password.…
01: Docker Tutorial – compile & run Helloworld.java
Docker, Jenkins, CI/CD, & DEV/OPS have been the buzz words for the last several years. You will be seeing this in more often in the job requirements as well. 21 Docker interview questions & answers | DevOps & CI/CD Interview Q&As
Pre-requisite: Docker is installed on your machine for example:
Mac OS X
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$ brew cask install docker |
Linux systems
800+ Java & Big Data Interview Q&As
200+ Java & Big Data Tutorials
Prepare to go places
Hope this detailed Q&As approach will help you open more doors without feeling stagnated, earn more, attend more interviews & choose from 2-6 job offers. Even you can go contracting or freelancing or change jobs every 2-3 years to expand your horizons. Nobody knows everything, but quality of answers to some of the key & frequently asked Java & Big Data interview questions will go a long way in getting multiple job offers. I often chose from 4-6 offers. It pays to prepare.
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