April 26, 2016

Java Design Pattern Interview Questions & Answers

What are Design Patterns?
Design patterns are tried and tested way to solve particular design issues by various programmers in the world. Design patterns are extension of code reuse.

April 25, 2016

Serialization Interview Questions and Answers for Experienced Developers

What is Serialization in Java?
Serialization is a process by which you can save or transfer the state of an object by converting it to a byte stream.

During Serialization, the Object is converted into a binary format ,which can be persisted into disk or sent over network to any other running Java virtual machine. During deserialization the reverse process is performed by creating object from binary stream.

April 24, 2016

JDBC Interview Questions And Answers

What is JDBC?
JDBC (Java Database Connectivity) is a Java API that is used to connect and execute query to the database. JDBC API uses jdbc drivers to connects to the database.

April 22, 2016

Madhuri shoots barefoot for the opening act of So You Think You Can Dance..

Everyone is aware of Madhuri’s love for dance. She believes that dance is an art and she has carved her niche in it. Madhuri Dixit who will be soon seen as the judge on &TV’s latest offering ‘So You Think You Can Dance - Ab India Ki Bari’ has done something phenomenal for the show. Read on to know more!

Tiger Shroff joins &TV’s 'So You Think You Can Dance'..


The new Baaghi in town, Tiger Shroff dropped by on the sets of &TV’s upcoming dance reality show SO YOU THINK YOU CAN DANCE. The actor showed off his cool dance moves and impressed everyone with his ‘Street’ style of dancing.

April 21, 2016

BARC Ratings (Impressions)- Week 15, 2016

  
In week 15 (9-15 April, 2016) of the BARC Ratings, Star Plus continued to be the most watched Hindi GEC. Colors remained at No.2 followed by Zee TV at No.3. Life OK took a leap to the fourth spot from seventh in week 14. Sony Pal remained at No.5.

April 15, 2016

Difference between Stack vs Heap in Java

1). Heap memory is used by java runtime to allocate memory to Objects and JRE classes. Whenever we create any object, it’s always created in the Heap space. Garbage Collection runs on the heap memory to free the memory used by objects that doesn’t have any reference. Any object created in the heap space has global access and can be referenced from anywhere of the application.

Java Stack memory is used for execution of a thread. They contain method specific values that are short-lived and references to other objects in the heap that are getting referred from the method. Stack memory is always referenced in LIFO (Last-In-First-Out) order. Whenever a method is invoked, a new block is created in the stack memory for the method to hold local primitive values and reference to other objects in the method. As soon as method ends, the block becomes unused and become available for next method.

A Fairy Tale Visit To Neuschwanstein Castle!!

Neuschwanstein Castle has been on my bucket list for ages because of its mesmerizing aura, breathtaking views and incredible artworks. That's why for me this visit was very, very thrilling. The kind of excitement where I let out little screams in complete anticipation.😻

April 13, 2016

All About jQuery..

What is jQuery?
Its a'lightweight' javascript library. With jQuery we, 'write less, and do more'.  jQuery also simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation. jQuery run exactly the same in all major browsers, including Internet Explorer 6.

April 07, 2016

Java Reflection API Interview Questions and Answers..

What is Reflection?
Java Reflection makes it possible to inspect classes, interfaces, fields and methods at runtime, without knowing the names of the classes, methods etc. at compile time. It is also possible to instantiate new objects, invoke methods and get/set field values using reflection. That means with reflection, we can examine or modify the runtime behavior of applications running in the Java virtual machine.

Reflection API usage can break the design pattern such as Singleton pattern by invoking the private constructor i.e violating the rules of access modifiers.

April 06, 2016

Core Java Interview Questions and Answers

What is Association, Aggregation and Composition?
Association is a relationship between two separate classes which can be of any type say one to one, one to may etc. It joins two entirely separate entities.

Aggregation is a special form of association which is a unidirectional one way relationship between classes (or entities), for e.g. Wallet and Money classes. Wallet has Money but money doesn’t need to have Wallet necessarily so its a one directional relationship. In this relationship both the entries can survive if other one ends. In our example if Wallet class is not present, it does not mean that the Money class cannot exist.

Composition is a restricted form of Aggregation in which two entities (or you can say classes) are highly dependent on each other. For e.g. Human and Heart. A human needs heart to live and a heart needs a Human body to survive. In other words when the classes (entities) are dependent on each other and their life span are same (if one dies then another one too) then its a composition. Heart class has no sense if Human class is not present.

April 02, 2016

All About Agile!!

What is Agile?
In traditional software development methodologies like Waterfall model, a project can take several months or years to complete and the customer may not get to see the end product until the completion of the project.

A non-Agile projects allocate extensive periods of time for Requirements gathering, design, development, testing and UAT, before finally deploying the project.

In contrast to this, Agile projects have Sprints or iterations which are shorter in duration (Sprints/iterations can vary from 2 weeks to 2 months) during which pre-determined features are developed and delivered. 

We can say that, Agile is a time boxed, iterative approach to software delivery that builds software incrementally from the start of the project (incremental delivery), instead of trying to deliver it all at once near the end.

What is User Story?
User stories are short, simple descriptions of a feature told from the perspective of the person who desires the new capability, usually a user or customer of the system.

April 01, 2016

Java Collections Interview Questions and Answers

JDK 1.2 introduces a new framework for collections of objects, called the Java Collections Framework.

What are Collections?
A collection (sometimes called a container) is simply an object that groups multiple elements into a single unit. Collections are used to store, retrieve, manipulate, and communicate aggregate data.

Difference between CountDownLatch & CyclicBarrier in Java

The main difference between CountDownLatch & CyclicBarrier is that you can not re-use CountDownLatch once count reaches to zero, but you can reuse same CyclicBarrier even after barrier is broken. Let's first understand what exactly CountDownLatch & CyclicBarrier does..
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