Technology Questions

Q:

What is the use of overloading ? or why overloading?

Answer

By using overloading we can add new functionality to the sub class.

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Subject: Java

0 1870
Q:

How to set breakpoints?

Answer

Setting up the break points:



  1.  Go to the line where you need to mark the breakpoint.

  2.  Click with mouse on left corner margin of that line.

  3.  Another way is to press F9

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Subject: .NET

0 1869
Q:

What is Auto boxing and unboxing?

Answer

Autoboxing is the process of converting a primitive type data into its corresponding wrapper class object instance.


Example:


Integer number = new Integer (100); // number is now refers to the object 100


 


Unboxing is the process of converting a wrapper instance into a primitive type.


Example: 


Integer number = new Integer (100); 


int num = number;// without type casting number would be changed into int type

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Subject: Java

0 1869
Q:

If super class ref is pointing sub class object then by using super class ref is it possible to call sub class newly defined method?

Answer

yes if the method is ovreriding method


no if the method is not overriding method

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Subject: Java

134 1868
Q:

What are pass by reference and passby value ?

Answer

Pass By Reference means the passing the address itself rather than passing the value. Passby Value means passing a copy of the value to be passed.

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Subject: Java

0 1866
Q:

What needs to be taken into consideration to host a website?

Answer

- To host a website a platform needs to be decided using which the hosting can be made simpler. 


- The specification needs to be determined before hosting the website and choosing the hosting platform. 


- The choice of operating system needs to be clear in choosing the website hosting services and the resources that the particular hosting platform requires need to be known. 


- The web hosting platform requires lots of services that need to be decided before hosting the website on the web.


- The space and the cost need to be kept minimum and according to that the choice has to be made between hosted or shared platforms.

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Subject: Web Technology

0 1864
Q:

What is Constructor?

Answer

Constructor is not a special method.


Constructor is block of code that is executed automatically whenever object of the class is created.

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Subject: Java

0 1862
Q:

What are the benefits for organizations and IT departments by using Blackberry?

Answer

Benefits for organizations :

The BlackBerry Connect technology allows the organizations for standardizing BlackBerry platform and leverages their existing BlackBerry solution investments. The employees’ productivity and performance can also be boosted by providing them the mobile access for their emails and calendars.

Benefits for IT :

IT departments are provided with a solution that is easy to utilize, manage and deploy by using BlackBerry Connect technology. Strict requirements for security and manageability will be satisfied and several devices can be connected to the BlackBerry Platform. 

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