1.What is ORM ? ORM stands for object/relational mapping. ORM is the automated persistence of objects in a Java application to the tables in a relational database. 2.What does ORM consists of ? An ORM solution consists of the followig four pieces: API for performing basic CRUD operations API to express ries refering to classes [...]
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1. What is IOC (or Dependency Injection)? The basic concept of the Inversion of Control pattern (also known as dependency injection) is that you do not create your objects but describe how they should be created. You don’t directly connect your components and services together in code but describe which services are needed by which [...]
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Q: What is the difference between an Interface and an Abstract class? A: An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface has all public members and no implementation. An [...]
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