java code useful site links for real time projects:

1.)  http://codejava.net

2.)  http://javatpoint.com

3.) http://java4s.com

4.) http://java2s.com

5.) http://www.w3schools.com/

6.) http://www.tutorialspoint.com/

7.) http://www.dineshonjava.com/


8.) http://codesstore.blogspot.in

9.)http://www.javabeat.net/

10.)http://www.tutorial4us.com/java/   (best for core java interview purpose)

11.) http://www.java-programs.com//    (Strings, conversions)
http://www.javatportal.com/servletcontext   (Servlets)


12) Strings playing
http://javadevnotes.com/java-string-split-limit-examples

13) PDF IText

https://www.javamadesoeasy.com/2016/04/how-to-create-images-in-pdf-generated.html?m=1

14) Best for real time scenarios to implement in projects
https://chillyfacts.com/create-pdf-dynamically-images-using-java/


15) https://javaconceptoftheday.com/  - GOOD


Spring videos:

RESTFUL WEB SERVICES, JAVA, SPRING BOOT, SPRING MVC AND JPA DOWNLOAD

(udemy)

http://coursesdaddy.com/restful-web-services-java-spring-boot-spring-mvc-jpa-download/

https://drive.google.com/drive/folders/1-jcgPIcW6bD8xCzwAnhjYGoofLM3a74Q


16) https://www.javainuse.com/devOps/docker/docker-jar  DOCKER deployment of spring boot app



GIT COMMANDS:
https://orga.cat/posts/most-useful-git-commands

DOCKER AND JENKINS AND GIT: Very good
https://automationstepbystep.com/  


Exception handling:
------------------------

https://stackabuse.com/exception-handling-in-java-a-complete-guide-with-best-and-worst-practices/