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 Technology Questions

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Q:

How would you automatically transfer your visitors to a new web page?

Answer

- You can do it with the help of meta tag mentioned below: 


<META HTTP-EQUIV="Refresh" CONTENT="2"; URL="https://www.yoursite.com"> 


- Place this tag between <HEAD></HEAD> . 


- It will load yousite.com in 2 seconds.

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Subject: Application Development

0 2004
Q:

What are the 3main tasks of JVM?

Answer

The JVM performs three main tasks:


• Loads code


• Verifies code


• Executes code

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Subject: Java

0 2004
Q:

Explain about Blackberry Operating System.

Answer

Research in Motion, a Canadian company provided a proprietary operating system for BlackBerry.

The operating system provides support for Java MIDP 1.0 and WAP 1.2.

The current version supports Novell Group Wise and Lotus Notes.

Third-party software can be developed using BlackBerry APIs as well, with certain restriction functionality must be signed by RIM digitally, so that it can be associated to a developer account. 

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Subject: Mobile Technology

0 2003
Q:

What are meta tags used for?

Answer

-To store information usually relevant to browsers and search engines.


-To only store information usually relevant to browsers


-To only store information about search engines.


-To store information about external links

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Subject: Application Development

0 2002
Q:

What is different among String, StringBuffer, StringBuilder?

Answer

String class objects are immutable objects and they represents strings( sequence of characters)


StringBuffer class objects are mutable objects representing strings and they are Thread safe


StringBuild class objects are also mutable objects representing strings and they are not Thread safe

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Subject: Java

0 2002
Q:

What is SVG?

Answer

- SVG is the abbreviation for Scalable Vector Graphics and is recommended by W3C. 


- It is used to define vector-based graphics for the Web


- The graphics are defined in XML format


-An important quality of SVG graphics is that their quality is maintained even when they are zoomed or resized. 


- All the element and attributes of SVG files can be animated

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Subject: Web Technology

0 2001
Q:

Why cannot you run standard Java byte code on Android ?

Answer

Android uses Dalvik Virtual Machine (DVM) which requires a special bytecode. We need to convert Java class files into Dalvik Executable files using an Android tool called "dx". In normal circumstances, developers will not be using this tool directly and build tools will care for the generation of DVM compatible files.

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Subject: Application Development
Job Role: Analyst , IT Trainer

1 2001
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 2001