This Privacy Policy describes how your personal information is collected, used, and shared when you visit or make a purchase from

  • The content of this website including all the tutorials are copyrighted by By using this site you agree not to reproduce, modify, rent, mirror, republish, the content in whole or in part. You must not remove or modify any copyright or trademark notice.

  • You can download the tutorial for your own personal use but not redistribute it.

  • We are welcomes you to place a link to our website.

  • If you believe that your work has been copied, or your trademark is infringed, please contact us by our email provided.

Disclaimer of Warranties

  • You use our website and the content of our website including all the tutorials at your own risk. We do not give any warranty that the content of our website is error free, If any damage from using our website and the content of our website.

  • Java and all Java-based marks are trademarks or registered trademarks of Oracle Corporation, Inc. in the United States and other countries.

  • The Kotlin trademark and associated marks, logos and domain names belong to the Kotlin Foundation.

  • Spring is a trademark of Pivotal Software, Inc. in the U.S. and other countries.

  • Node.js is a trademark of Joyent, Inc. and is used with its permission. We are not endorsed by or affiliated with Joyent

  • “Python” is a registered trademark of the PSF. The Python logos (in several variants) are use trademarks of the PSF as well.

  • Any other mentioned trademarks are copyright of their respective owner. The use of this trademarks does not express that we own these trademarks.

For EU and EEA Users in Compliance with GDPR:

Sharing Your Personal Information

We share your Personal Information with third parties to help us use your Personal Information, as described above. We use Google Analytics to help us understand how our customers use the Site - you can read more about how Google uses your Personal Information here:

Finally, we may also share your Personal Information to comply with applicable laws and regulations, to respond to a subpoena, search warrant or other lawful request for information we receive, or to otherwise protect our rights.

Analytics We use Google Analytics on our website to:

  • Monitor site traffic and behavior flows of users
  • Measure the effectiveness of on-site products
  • Measure the effectiveness of off-site marketing campaigns and tactics
  • Google has developed the Google Analytics opt-out browser add-on; if you want to opt out of Google Analytics, you can download and install the add-on for your web browser here.The add-on prevents the Google Analytics JavaScript (ga.js, analytics.js and dc.js) from sharing information with Google Analytics about visits activity. For more information on the privacy practices of Google, please visit the Google Privacy & Terms web page

Disqus Disqus is a third-party service used to managed comments on the website. Disqus uses data collected to track comments and discussion threads. In some cases, Disqus can be configured to track usage and deliver advertisements. These features have been turned off for our Service.

For more information on the privacy practices of Disqus, please visit the Disqus Privacy Policy web page


We may use third-party Service Providers to show advertisements to you to help support and maintain our Service.

Google AdSense & DoubleClick Cookie Google, as a third party vendor, uses cookies to serve ads on our Service. Google’s use of the DoubleClick cookie enables it and its partners to serve ads to our users based on their visit to our Service or other websites on the Internet.

You may opt out of the use of the DoubleClick Cookie for interest-based advertising by visiting the Google Ads Settings web page

Do Not Track

Please note that we do not alter our Site’s data collection and use practices when we see a Do Not Track signal from your browser.

Your Rights

If you are a European resident, you have the right to access personal information we hold about you and to ask that your personal information be corrected, updated, or deleted. If you would like to exercise this right, please contact us through the contact information below.

Additionally, if you are a European resident we note that we are processing your information in order to fulfill contracts we might have with you (for example if you make an order through the Site), or otherwise to pursue our legitimate business interests listed above. Additionally, please note that your information will be transferred outside of Europe, including to Canada and the United States.


The Site is not intended for individuals under the age of 18.

Our Service may contain links to other sites that are not operated by us. If you click a third party link, you will be directed to that third party’s site. We strongly advise you to review the Privacy Policy of every site you visit.

We have no control over and assume no responsibility for the content, privacy policies or practices of any third party sites or services.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page