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 Technology Questions

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Q:

What is the use of super call?

Answer

By using super call we can call super class constructors  from sub class constructors and we can initialize super class private data.

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Subject: Java

0 2135
Q:

What is a Node.js?

Answer

Node.js is a framework for web applications built on Google Chrome's JavaScript Engine(V8 Engine).


Node.js is comes with runtime environment on which a cript based on javascript can be interpreted and executed (It is analogus to JVM to JAVA byte code). This runtime environment allows to execute a JavaScript code on any machine outside a browser. Because of this runtime of Node.js, JavaScript is now can be executed on server also.


Node.js is provides a rich library of various javascript modules which eases the developement of web application using Node.js to greater extents.


 

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Subject: Web Technology
Job Role: Software Architect

0 2132
Q:

How to create a Delegate?

Answer

public delegate void Del<T>(T item);


Del<int> d1 = new Del<int>(Notify);

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Subject: .NET

0 2131
Q:

What is the Oracle Web Cache?

Answer

Oracle Web Cache is a secure reverse proxy cache and a compression engine deployed between Browser and HTTP server, Browser and Content Management server to improve the performance of web sites by caching frequently accessed content. Oracle Web Cache supports:


- Static content caching


- Dynamic content caching


- Partial Page catching


- Request Filtering.

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Subject: Oracle

0 2130
Q:

What is the difference between Silverlight 1.0 and 2?

Answer

Silverlight 1 is purely AJAX and JavaScript based. All the code has to be written in JavaScript and XAML. 


 Silverlight 2 supports managed code. When the Silverlight 2 runtime is installed, it installs a limited version of the .NET runtime on the client machine

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Subject: Web Technology
Job Role: Database Administration

0 2128
Q:

What is an ABAP/4 Query?

Answer

ABAP/4 Query is a powerful tool to generate simple reports without any coding. ABAP/4 Query can generate the following 3 simple reports: Basic List: It is the simple reports. Statistics: Reports with statistical functions like Average, Percentages. Ranked Lists: For analytical reports. - For creating a ABAP/4 Query, programmer has to create user group and a functional group. Functional group can be created using with or without logical database table. Finally, assign user group to functional group. Finally, create a query on the functional group generated.

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Subject: SAP

0 2126
Q:

What is Shift() method in Javascript?

Answer

-The shift() method is similar as the pop() method but the difference is that Shift method works at the beginning of the array. 


-The shift() method take the first element off of the given array and returns it. The array on which is called is then altered.


For example


var myarray = ["apple ", "banana ", "mango "]; 


console.log(myarray.shift());


console.log(myarray);


we get the following console output:


apple


["banana ", "mango "];


 


When we call shift() on an empty array, it will return an undefined value.

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Subject: Web Technology

0 2119
Q:

How to insert Javascript in HTML?

Answer

We can insert JavaScript in HTML using <Script tag>. JavaScript can be enclosed in <script type = text/javascript> and ending with </script>.


Example: 


<html> 


  <body> 


        <script type="text/javascript"> 


               ...JavaScript….


         </script> 


   </body> 


</html>

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Subject: Web Technology

0 2117