What is Dependency Injection aka Inversion of control? Let's understand first "coupling". When one class depends on another, they are called coupled. Coupled class can't be tested in isolation. For example: Client depends on BookService, BookService depends on BookDAO, BookDAO depends on...
Read MoreTuesday, 22 October 2019
Sunday, 6 October 2019
Expectations
The expectation from Core a Java Developer General General expectation of client from core java developer is he should strong in Data structure , multithreading and fundamental , client expect when complex question asked from candidate he should attempt and try to...
Read MoreJava 8 features
Agenda Lambda Expression Functional Interface Default Method Inbuilt functional interfaces 1.Consumer 2.Supplier 3.Function 4.Predicate Double colon operator(::) Stream...
Read MoreSaturday, 5 October 2019
Wrapper classes
Agenda Wrapper classes The class hierarchy of wrapper class Creating an object of the wrapper classes Wrapper classes The wrapper classes are used to wrap primitives in an object. So, they can be added to a collection object. To define utility functions...
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