Pergunta de entrevista da empresa HCLTech

the questions asked were First coding question - Given a string and asked to find out count of characters present using stream 8 Map vs flatmap Different java 8 features and explain What is method reference in java 8 and give an example Different interface methods Asked Microservices if I worked on it Exception handling in spring Spring vs spring boot How RestApi works How to implement security in spring JavaScript - Dev vs span Box tag