Interview Questions

This is a keyword and used as reference to Current object address in java. 

It means by using which object the method is called that object hashcode is stored inside the 'this'.

Canvas is a rectangular area on a HTML page, specified with the tag <canvas>. 

The documents that a business analyst should deliver are functional specification documents, technical specification documents, Requirements traceability, BRD (business requirements document), Use case diagrams and Business flow documents.

XPath specifies the path in the XML document which has hierarchical elements. XPath is used with XPointer and XSLT and parser.  

NaN stands for ‘not-a-number’. The function isNaN determines the argument or the value is a NaN. The function returns true if the argument is not a number, otherwise returns false.

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.

Parsing the XML document is the only way to validate the XML file. Validation is done by either DOM parser or the SAX parser. 

There is the demand for the rich multimedia that involves many features that are used till now to make the Android market more popular in all the phases. The application includes the following:

• Mixable audio effects – developer can easily create audio environments using the API key that is provided with it like creating equalization, bass boost, headphone feature, etc. The android provide the tools that can be used to mix the audio effects and apply it.

• There is also support for new media formats like VP8 open video compression format that uses a container format that can run on all the platforms and add the support for AAC and AMR encoding. The applications provided allow higher quality video to be captured.

• The application allows the access to multiple cameras that allows the use of APIs to include the camera and its properties in one. The platform provides the application to include the camera with high and low resolution.