cloning github wiki repository to the other

1. solving error "remote repository already exists"
2. following are the ways: 
3. git remote rm origin // to remove the existing repository
    
4. git remote add origin https://github.com/username/abc.wiki.git
   
    
5. git add . //for staging files
    
6. git commit -m  "first doc commit"
   [master 55a63a5] first doc commit
    10 files changed, 1428 insertions(+), 1 deletion(-)
    create mode 100644 A.md
    create mode 100644 R.md
    create mode 100644 D.md
    create mode 100644 G.md
    create mode 100644 N.md
    create mode 100644 P.md
    create mode 100644 Rn.md
    create mode 100644 S.md
    create mode 100644 n.md
   
7. git push origin master
   fatal: HttpRequestException encountered.
      An error occurred while sending the request.
    
8. Username for 'https://github.com': 
9. Password for
   Counting objects: 12, done.
   Delta compression using up to 4 threads.
   Compressing objects: 100% (11/11), done.
   Writing objects: 100% (12/12), 7.35 KiB | 0 bytes/s, done.
   Total 12 (delta 1), reused 0 (delta 0)
   remote: Resolving deltas: 100% (1/1), done 

https://stackoverflow.com/questions/10904339/github-fatal-remote-origin-already-exists

github limiting rights

1. https://help.github.com/articles/about-codeowners/
2. 
   

messaging

1. https://firebase.google.com/docs/auth/android/phone-auth
2. https://www.twilio.com/sms

blogging

1. https://blog.markgrowth.com/how-to-start-a-beautiful-personal-blog-using-medium-ca6d89b7e46#.9dojul756
2. 
   

website wireframe

1. https://www.webascender.com/blog/how-to-build-a-website-wireframe-using-google-docs/
2. 
   

microservices

1. https://dzone.com/articles/java-microservices-code-examples-tutorials-and-more
2. 
   

Project Management

1. https://www.atlassian.com/software/jira?_mid=0feb0441a976079b827b9d9027d73822 
2. https://www.timecamp.com/blog/index.php/2015/09/top-6-benefits-using-time-tracking-jira-2/
3.  https://drive.google.com/open?id=1t0DT1YgfKflw1HaGmhsY0Xyi2B3-bgxb
4.  https://www.zoho.com/projects/
5.  free tools
1. google hangout for live video sessions
2. whatsapp group for the team
6. 
   
7. https://www.backblaze.com/
8. https://www.zoho.com/mail/
9. https://www.invisionapp.com/
10. https://mlab.com/
11. 
    
12. Bitbucket
    JIRA
    Bamboo
    Confluence
    AWS
    =============================================
    technology architecture
    Microservices
    ==============================================
    technology stack
    Spring boot
    Angular js
    Mongdb
    Express js
    Nodejs
    ===============================================
    Android
    ================================================
    UML
    documentation
    ================================================
    Testing
     unit testing
     automation testing
     performance testing
     security testing
    =================================================
     Clean coding
    =================================================
    scrum
    =================================================
    Design Patterns
    =================================================
    task management
    people management
    project management
    revenue management
    change management
    skill management
    document management
    code management
    ==================================================
    google docs
    whatsapp group
    ===================================================
    UML
    {
    use cases
    }
    
    Testing
    {
    unit testing
    }
    CI/CD
    AWS
    Maven
    
    Angular4
    Mongodb
    Spring boot
    ==========
    MSg91
    IBM Watson
    ===========
    
    * Github
    * JIRA
    * CI/CD
    *  travis
    *  jenkins
    * AWS
    
    ==========
    QA
    * testing
    * unit testing
    * automation testing
    * performance testing
    * security testing
    * code review
    *  
    * DevOps
    *
    * ===========
    Domain Expert
    * UML
    * OOAD
    * Design Patterns
    * documentation
    =====================
    * AI
    * python
    * machine learning
    * Tensor flow
    ======================
    * AWS technologies
    =======================
    * Mobile User Experience
    * Web User Experience
    * =======================
    * Security Expert
    * =======================
    * IBM Watson Application
    ==========================
    * SMS gateway application
    * interaction through SMS
    * login through SMS
    * auto response through SMS
    ===============================
    Revenues
    =================================
    Risk Management
    ===================================
    People Management
    ===================================
    Task Management
    ===================================

JPA Latest

1. https://www.thoughts-on-java.org/whats-new-in-jpa-2-2/
2. https://docs.jboss.org/hibernate/orm/5.2/userguide/html_single/chapters/domain/identifiers.html
3. 
   

JPA derived identifier

1. https://jeddict.github.io/page.html?l=tutorial/DerivedIdentities
2. 
   

learning

1. https://instruqt.com/
2. 
   

JPA mapping

1. https://stackoverflow.com/questions/12860781/hibernate-jpa-multiple-onetomany-for-same-model
2.  https://coderanch.com/t/216143/databases/Hibernate-multiple-relationships-class
3.  

JPA best practices

1.  https://stackoverflow.com/questions/2585641/hibernate-jpa-db-schema-generation-best-practices
2.  
3. do not let hibernate create the schema
4. https://stackoverflow.com/questions/8815037/how-to-create-database-schema-in-hibernate-first-time-and-further-update-it-in-c 
5. https://www.thoughts-on-java.org/hibernate-tips-create-initialize-database/
6. https://shekhargulati.com/2018/01/09/programmatically-generating-database-schema-with-hibernate-5/ 
7.  http://what-when-how.com/enterprise-javabeans-3/domain-modeling-and-the-jpa-ejb-3/

jpa useful links

1. https://vladmihalcea.com/the-best-way-to-map-a-onetomany-association-with-jpa-and-hibernate/
2. https://www.thoughts-on-java.org/best-practices-many-one-one-many-associations-mappings/
3. http://websystique.com/hibernate/hibernate-many-to-one-unidirectional-annotation-example/
4. 
   

jpa errors

1. https://stackoverflow.com/questions/39734796/jpa-concurrency-issue-on-release-of-batch-it-still-contained-jdbc-statements
2. Field 'DTYPE' doesn't have a default value

jhipster

1. https://www.jhipster.tech/
2. 
   

security

1. https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
2. 
   

IDE speed up

1. https://stackoverflow.com/questions/316265/how-can-you-speed-up-eclipse?rq=1
2. https://projectlombok.org/
3. 
   

aws codecommit

1. https://docs.aws.amazon.com/codecommit/latest/userguide/welcome.html
2. 
   

aws deployment from codecommit to elasticbeanstalk environment

1. https://aws.amazon.com/premiumsupport/knowledge-center/deploy-codecommit-elastic-beanstalk/
2. https://stackoverflow.com/questions/15645368/how-to-incrementally-deploy-to-amazon-beanstalk-from-eclipse
3. 
   

recaptcha v2

1. https://developers.google.com/recaptcha/docs/faq 
2. https://sanaulla.info/2017/11/10/using-google-recaptcha-with-spring-boot-application/ 
3. https://stackoverflow.com/questions/30832957/google-recaptcha-not-showing
4. https://stackoverflow.com/questions/27286232/how-does-new-google-recaptcha-work
5. https://www.quora.com/Why-does-Googles-new-reCaptcha-always-asks-me-to-solve-a-captcha
6. https://en.wikipedia.org/wiki/ReCAPTCHA
7. https://stackoverflow.com/questions/39853162/recaptcha-with-content-security-policy
8. https://trends.builtwith.com/cdn/GStatic-Google-Static-Content
9. https://github.com/google/recaptcha/issues/107
10. 
    

git add-all-files-to-a-commit-except-a-single-file

1. https://stackoverflow.com/questions/4475457/add-all-files-to-a-commit-except-a-single-file
2. 
   

jquery clearing textfield

1. .val() use to set/ get value in text field. With parameter it acts as setter and without parameter acts as getter.
2. https://stackoverflow.com/questions/10951809/clear-text-field-value-in-jquery
3. 
   

javascript undefined vs null

1. https://stackoverflow.com/questions/2559318/how-to-check-for-an-undefined-or-null-variable-in-javascript
2. https://www.thecodeship.com/web-development/the-undefined-vs-null-pitfall-in-javascript/
3. 
   

jquery ui autocomplete combobox

1. http://jqueryui.com/autocomplete/#combobox
2. https://stackoverflow.com/questions/21822731/jquery-ui-autocomplete-combobox-changed-not-firing
3. 
   

dynamic dropdown

1. http://rajnikantpanchal.blogspot.in/2013/10/dynamic-fill-dropdown-list-in-spring.html 
2. https://stackoverflow.com/questions/43848339/dynamic-dropdowns-using-thymeleaf-spring-boot
3. https://blog.bubble.is/how-to-build-dynamic-dropdown-elements-3ad6cb72cf5f
4. 
   

editable select

1. https://stackoverflow.com/questions/2141357/editable-select-element?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
2. 
   

spring data jpa reference

Table 4. Supported keywords inside method names

Keyword	Sample	JPQL snippet
And	findByLastnameAndFirstname	… where x.lastname = ?1 and x.firstname = ?2
Or	findByLastnameOrFirstname	… where x.lastname = ?1 or x.firstname = ?2
Is,Equals	findByFirstname,findByFirstnameIs,findByFirstnameEquals	… where x.firstname = ?1
Between	findByStartDateBetween	… where x.startDate between ?1 and ?2
LessThan	findByAgeLessThan	… where x.age < ?1
LessThanEqual	findByAgeLessThanEqual	… where x.age <= ?1
GreaterThan	findByAgeGreaterThan	… where x.age > ?1
GreaterThanEqual	findByAgeGreaterThanEqual	… where x.age >= ?1
After	findByStartDateAfter	… where x.startDate > ?1
Before	findByStartDateBefore	… where x.startDate < ?1
IsNull	findByAgeIsNull	… where x.age is null
IsNotNull,NotNull	findByAge(Is)NotNull	… where x.age not null
Like	findByFirstnameLike	… where x.firstname like ?1
NotLike	findByFirstnameNotLike	… where x.firstname not like ?1
StartingWith	findByFirstnameStartingWith	… where x.firstname like ?1 (parameter bound with appended %)
EndingWith	findByFirstnameEndingWith	… where x.firstname like ?1 (parameter bound with prepended %)
Containing	findByFirstnameContaining	… where x.firstname like ?1 (parameter bound wrapped in %)
OrderBy	findByAgeOrderByLastnameDesc	… where x.age = ?1 order by x.lastname desc
Not	findByLastnameNot	… where x.lastname <> ?1
In	findByAgeIn(Collection<Age> ages)	… where x.age in ?1
NotIn	findByAgeNotIn(Collection<Age> ages)	… where x.age not in ?1
True	findByActiveTrue()	… where x.active = true
False	findByActiveFalse()	… where x.active = false
IgnoreCase	findByFirstnameIgnoreCase	… where UPPER(x.firstame) = UPPER(?1)

recording screencast

1. http://recordit.co/
2.  

loading four most recent pictures

1. 
   

   
   
   <!doctype html>
   
   
   
   <html lang="en">
   
   
   
   <head>
   
   
   
     <meta charset="utf-8">
   
   
   
     <title>jQuery.getJSON demo</title>
   
   
   
     <style>
   
   
   
     img {
   
   
   
       height: 100px;
   
   
   
       float: left;
   
   
   
     }
   
   
   
     </style>
   
   
   
     <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
   
   
   
   </head>
   
   
   
   <body>
   
   
   
    
   
   
   
   <div id="images"></div>
   
   
   
    
   
   
   
   <script>
   
   
   
   (function() {
   
   
   
     var flickerAPI = "https://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?";
   
   
   
     $.getJSON( flickerAPI, {
   
   
   
       tags: "mount rainier",
   
   
   
       tagmode: "any",
   
   
   
       format: "json"
   
   
   
     })
   
   
   
       .done(function( data ) {
   
   
   
         $.each( data.items, function( i, item ) {
   
   
   
           $( "<img>" ).attr( "src", item.media.m ).appendTo( "#images" );
   
   
   
           if ( i === 3 ) {
   
   
   
             return false;
   
   
   
           }
   
   
   
         });
   
   
   
       });
   
   
   
   })();
   
   
   
   </script>
   
   
   
    
   
   
   
   </body>
   
   
   
   </html>
   
   

spring recaptcha integration

1. http://www.baeldung.com/spring-security-registration-captcha
2. 
   

jquery prop method

1. https://www.w3schools.com/jquery/html_prop.asp
2. 
   

spring data jpa

1. https://docs.spring.io/spring-data/jpa/docs/1.5.0.RC1/reference/html/jpa.repositories.html
2. 
   

mysql database of country,state,city

1. https://stackoverflow.com/questions/16020942/is-there-any-way-to-get-all-country-state-and-cities-mysql-data-a-dump-file
2. 
   

security

1. https://www.maxmind.com/en/minfraud-services
2. 
   

jquery opposite of append

1. https://stackoverflow.com/questions/4934488/opposite-of-append-in-jquery
2. 
   

javascript

1. https://stackoverflow.com/questions/2483429/how-to-use-outerhtml-in-javascript
2. 
   

javascript displaying object

1. https://stackoverflow.com/questions/957537/how-can-i-display-a-javascript-object
2. 
   

javascript return false

1. https://stackoverflow.com/questions/10729198/what-does-return-false-do
2. 
   

angular

1. https://stackoverflow.com/questions/32470928/angular-formly-adding-form-fields-dynamically-on-user-click
2. 
   

bootstrap

1. http://www.bootlint.com/
2.  

bootstrap css classes

1. https://www.w3schools.com/bootstrap/bootstrap_ref_all_classes.asp
2. 
   

html nesting of forms

1. https://stackoverflow.com/questions/379610/can-you-nest-html-forms
2. 
   

html role

1. https://stackoverflow.com/questions/10403138/what-is-the-purpose-of-the-role-attribute-in-html
2. 
   

spring mvc autocomplete example

1. http://www.codingpedia.org/ama/autocomplete-search-box-with-jquery-and-spring-mvc/
2. http://viralpatel.net/blogs/spring-3-mvc-autocomplete-json-tutorial/
3. https://www.mkyong.com/spring-mvc/spring-mvc-jquery-autocomplete-example/
4. https://stackoverflow.com/questions/46760315/spring-boot-autocomplete-ajax 
5.  

spring mvc ajax examples

1. http://www.raistudies.com/spring/spring-mvc/ajax-spring-mvc-3-annonations-jquery/
2. https://www.boraji.com/spring-4-mvc-jquery-ajax-form-submit-example
3. https://www.javacodegeeks.com/2013/09/spring-mvc-ajax-jquery.html
4. https://crunchify.com/how-to-use-ajax-jquery-in-spring-web-mvc-jsp-example/
5. https://vitalflux.com/make-ajax-calls-java-spring-mvc/
6. http://www.beingjavaguys.com/2013/07/sending-html-form-data-to-spring.html
7. http://www.mkyong.com/spring-mvc/spring-4-mvc-ajax-hello-world-example/
8. 
   

html polyfills

1. https://stackoverflow.com/questions/7087331/what-is-the-meaning-of-polyfills-in-html5
2. 
   

google sign in

1. https://dzone.com/articles/getting-started-with-google-sign-in-in-spring-boot
2. 
   

lookup-city-and-state-by-zip-google-geocode-api

1. https://stackoverflow.com/questions/4749706/lookup-city-and-state-by-zip-google-geocode-api/4749821
2. 
   

inventory system

1. http://smallbusiness.chron.com/implement-inventory-system-manufacturing-company-81005.html
2. 
   

Spring and Mongodb and Java

1. https://xpadro.com/?blogger=http://xpadro.blogspot.in/2014/02/thymeleaf-integration-with-spring-part-2.html
2. 
   

object references an unsaved transient instance

1. https://stackoverflow.com/questions/2302802/object-references-an-unsaved-transient-instance-save-the-transient-instance-be
2. i was getting the error when i was instantiating country which was not linked to database row and using this country as a parameter for fetching states. so i  used string country name and got the reference of country in the database and used this country as parameter to fetch the states then it worked.
3. 
   

thymeleaf with servlet

1. https://www.concretepage.com/thymeleaf/thymeleaf-form-action-form-submit-and-image-src-example-with-attribute-values
2. 
   

spring boot ajax example

1. https://www.mkyong.com/spring-boot/spring-boot-ajax-example/
2. 
   

spring boot json thymeleaf fragment example

1. https://stackoverflow.com/questions/20982683/spring-mvc-3-2-thymeleaf-ajax-fragments?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
2. https://www.thymeleaf.org/doc/articles/layouts.html
3. 
   

JPA doubts

1. what happens when new entities and attributes are defined in a production database that has thousands of data. what are the implications?
2. 
   

json in spring boot

1. https://stackoverflow.com/questions/44839753/returning-json-object-as-response-in-spring-boot?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
2. https://stackoverflow.com/questions/40874012/object-to-json-serialization-inside-thymeleaf-template?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
3. 
   

spring boot thymeleaf example

1. https://medium.com/@grokwich/spring-boot-thymeleaf-html-form-handling-762ef0d51327
2. 
   

spring mvc error

Problem:
Neither BindingResult nor plain target object for bean name 'country' available as request attribute
Solution:
instantiate country and add as attribute in model map.

country details

1. https://countrycode.org/
2. 
   

thymeleaf form select option example

1. https://o7planning.org/en/11659/thymeleaf-form-select-option-example
2. 
   

spring mvc dropdown example

1. https://www.mkyong.com/spring-mvc/spring-mvc-dropdown-box-example/
2. 
   

smart home

1. wemo belkin switch
2. amazon alexa
3. 
   

aws useful resources

1. route 53 
2. IAM role
3. s3
4. elastic beanstalk
5. sns
6. cloudwatch
7. rds
8. ec 2
9. 
   

aws sms through sns

1. https://docs.aws.amazon.com/sns/latest/dg/sms_publish-to-phone.html
2. 
   

aws elastic beanstalk application deletion

1. when the aws elastic bean application is deleted rds instance is automatically deleted
2. ec2 instance is also deleted
3. s2 bucket content should be deleted because it is not deleted automatically
4. 
   

calling javascript function on page load

1. https://stackoverflow.com/questions/3842614/how-do-i-call-a-javascript-function-on-page-load
2.