rest api

1. For simplicity, our example application only sends JSON back and forth, but the application should be architectured in such a way that you can easily change the format of the data, to tailor for different clients or user preferences.
2.  

android rest

1. https://code.tutsplus.com/tutorials/android-from-scratch-using-rest-apis--cms-27117
2. https://code.tutsplus.com/tutorials/a-beginners-guide-to-http-and-rest--net-16340
3. https://dzone.com/articles/creating-a-simple-android-rest-client-using-http-r
4. 
   

spring boot

1. externalized configuration
2. 
   

java features latest

1. optional
2. 
   

spring exception handling

1. https://www.journaldev.com/2651/spring-mvc-exception-handling-controlleradvice-exceptionhandler-handlerexceptionresolver
2. https://dzone.com/articles/global-exception-handling-with-controlleradvice
3. 
   

mockito

1. https://medium.com/@gustavo.ponce.ch/spring-boot-restful-junit-mockito-hamcrest-eclemma-5add7f725d4e 
2. can we use same mock in two different test methods? what would be its implications ie. pros and cons?
3. what layer is best suitable for being tested through mockito? controller or service? or both?
4. https://dzone.com/articles/spring-boot-unit-testing-and-mocking-with-mockito
5. @Mock vs @InjectMocks?
6. 
   

error-selection-does-not-contain-a-main-type

1. https://stackoverflow.com/questions/31250359/git-repository-how-to-recover-deleted-files
2. check the folder structure
3. do you have src/main/java structure and inside it do you have Main class?
4.