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|Core Java - Interview Questions and Answers for 'Java programs are collection of objects' - 1 question(s) found - Order By Newest|
|Ans. Java Programs are collection of objects that communicates with each other to get a task accomplished. To add to those objects, there are common spaces ( static i.e common for objects belonging to a class ) that are used too. |
We can visualize objects as departments of an organization in real world. Just like Task gets initiated in one department and then files are moved across different departments to get work done. In a similar fashion, a task is initiated in one object ( having main method ) and then information ( through POJOs / DTOs ) is moved across objects to accomplish a task.
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|Why do we need Inner classes ? Cant we just work with outer classes wherever we implement Inner classes ?|
|Let's suppose we have an to destroy objects, Design a program to implement garbage collection ?|
|Difference Between this() and super() ?|
|How can we create objects if we make the constructor private ?|
| Please specify in what sequence the objects of following classes will be created ?|
Session , SessionFactory, Query , Configuration
|Which interface provides the capability to store objects using a key-value pair?|
|What is an Object ?|
|How many SessionFactory and Session objects are created ?|
|Can we declare Entity class as final ?|
|What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?|