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Technical interview questions

Java​

  • Difference between StringBuilder (in java.lang) and StringBuffer
  • lamda fuction ->
  • String method isBlank()
  • Primitive types int, byte, short, long, float, double, boolean and char
  • Garbage Collectors
  • Default method is defined with an implementation in an interface
  • Robust handling of Reader
  • Hash collisions

Multi threading​

  • wait/notify/join
  • different ways to start thread
  • general concepts designing multi thread

Spring​

  • Different types of dependency injection
  • Spring bean scope / different scopes
  • Different steps when a request enters into a spring application
  • Aspect
  • @SpringBootApplication annotations included : @EnableAutoConfiguration, @ComponentScan and @Configuration
  • Difference between @Component, @Service and @Repository
  • @ControllerAdvice and @ExceptionHandler
  • Inject values at runtime (@Value using SpEL)
  • @Transactional
  • @CrossOrigin(origins="...")
  • Spring security / OAuth2

Angular / Web​

  • hooks
  • directives
  • Types of forms (Template-driven and Reactive)
  • ES6 modules strict mode by default
  • Lazy loading

Git​

  • diff
  • amend
  • reset/revert
  • rebase/merge

CV​

Prepare explanation of technologies Precise in the response

Others​

  • HTTP methods

To well present​

  • Spring pattern CI/DI
  • Multi threading
  • Java principles