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Java – Read/Parse Command Line Arguments/Options

Maven Dependency : <dependency> <groupId>commons-cli</groupId> <artifactId>commons-cli</artifactId> <version>1.2</version> </dependency> Sample Java Program : package test; import org.apache.commons.cli.BasicParser; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.Options; import org.apache.commons.cli.ParseException; public class Test { public static void main(String[] args) { //Define Options Options options = new Options(); //Option Name - option1 //Has input value - true options.addOption("option1", true, "Option 1 Description");… Read More »

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Computer Science Progamming Video Tutorials Links

Android Android Application Development Tutorials by thenewboston (200 Videos) Android 4.0 Tutorials by TwistedEquations (43 Videos) Android Tutorials: For Apps & Game Development by damarias Rodriguez (35 Videos) 80+ Best Resources for Android Developers 2016 (Blogs, Forums & More) Ruby on Rails Ruby On Rails Video Tutorials – Learn Rails By Examples by RubyOnRailsVideos (75 Videos) Riding Ruby on Rails Video… Read More »

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Use Single Keyboard & Mouse with multiple CPUs or Computers

      There are many situations where a user needs to use a single keyboard & mouse with 2 or 3 computers or CPUs (with either one monitor or more than one monitor). Is this kind of setup possible? Yes. It is possible with either using a software or hardware. Both the approaches have… Read More »

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“Active Record::Connection Not Established” Error in Ruby on Rails (ROR) when Connecting to MYSQL Server – Solution

      I got this error “ActiveRecord::ConnectionNotEstablished” while using Ruby on Rails with MYSQL initially. The error means that the Rails framework is not able to connect to MYSQL server. The problem is that the root(MYSQL) user was not able to connect to MYSQL through Rails. So to solve this issue, login as root in… Read More »

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Gremlin Query Basic Tutorials

Gremlin Query Language – Create Vertex/Node and Edge/Relationship Check If Vertex/Edge Exist – Gremlin Query – Titan Update Properties of Multiple Edges – Gremlin Query – Titan Update Properties of Multiple Vertices – Gremlin Query – Titan Create Vertex If Does Not Exist – Gremlin Query – Titan Query/Access Root Level Properties and Nested Properties… Read More »

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