Pergunta de entrevista da empresa J.P. Morgan

Written Test :: topics from core JAVA,Spring,Hibernate,Junits,Spring Boot. Technical Round : 1.which one to choose : static or singleton pattern. 2. need to overload any method . will it not create confusion with the names. 3. what is cyclic dependency.Impact of cyclic dependency on applcation. how to get rid of it? 4.describe any design pattern .why chose that pattern and its advantages 5.what is is-a and has-has a relationship 6.write code for singleton pattern.