Technology Questions

Q:

What is the difference between array and ArrayList ?

Answer

Array is collection of same data type. Array size is fixed, It cannot be expanded.


 


But ArrayList is a growable collection of objects.ArrayList is a part of Collections Framework and can work with only objects.

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Subject: Java

0 1876
Q:

What is web application?

Answer

Web application provides services (Free and Paid) apart from information.


Ex: Online Banking System


It provides Bank  information , Branches & ATM information, Loans information etc...


And It provides balance enquiry, Fund transfer, Bill payments like services.

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Subject: Web Technology

0 1874
Q:

What is Web Server?

Answer

Web server handles client side and server side validations and helps to deliver web content that can be accessed through the Internet protocols.


Examples:


Microsoft IIS (Internet Information Service)


Apache web server from Apache


Java web server


Pramathi web server etc...

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Subject: Web Technology

0 1873
Q:

What are the built-ins used for finding Object ID function?

Answer

FIND_GROUP(function) FIND_COLUMN(function)

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2 1871
Q:

How can you have different number of cells for each row of a table?

Answer

By setting the columnSpan property for cells of each row as required.

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0 1868
Q:

Whats a struct?

Answer

A struct is a special C data type that encapsulates other pieces of data into a single cohesive unit. Like an object, but built into C.

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0 1867
Q:

Differentiate between Canvas and SVG.

Answer

Some important differences between Canvas and SVG:


- Canvas is resolution dependent while SVG is not. 


- Canvas does not provide any support for event handlers while SVG does. 


- Canvas is suitable for graphic-intensive games while SVG is not suitable for gaming.


- Canvas is suitable for small rendering areas while SVG is suitable for large rendering areas like Google maps.

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Subject: Web Technology

0 1865
Q:

What is XML?

Answer

XML, Extensible Markup Language, is an open, text based markup language that provides structural and semantic information to data. XML is a metalanguage that can be used to create other language. It is used to structure and describe data that can be understood by other applications. Using XML, we can separate the user interface from data.


Features of XML :


- XML is a generalized markup language that means one can define his/her own tag sets.


- A valid XML document contains rules and is self-describing.


- The rules that are found in DTD allow the documents to be validated.

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Subject: Web Technology

0 1865