Technology Questions

A method declared as final can't be overridden. A sub-class can't have the same method signature with a different implementation.

Canvas views are the back ground objects on which you place the interface items (Text items), check boxes, radio groups etc.,) and boilerplate objects (boxes, lines, images etc.,) that operators interact with us they run your form . Each canvas views displayed in a window.

By using method.

The method used to get the data is called getter method.

Server-based network: Provide centralized control of network resources and rely on server computers to provide security and network administration.

peer-to-peer network: computers can act as both servers sharing resources and as clients using the resources.

- Notification messages to the user from an Android enabled device can be displayed using Intents.

- There are two types of Intents - Explicit Intent, Implicit Intent.

Implicit Intent:

- In case of Implicit Intent, an intent is just declared. 

- It is for the platform to find an activity that can respond to it.

- Since the target component is not declared, it is used for activating components of other applications.

Explicit Intent

- Explicit intent specifies the particular activity that should respond to the intent. 

- They are used for application internal messages.

- Web accelerators are used to increase the loading of the web page faster and by providing extra features of caching, etc. 

- There are tools that are provided like internet accelerator of browser accelerator that provides security from the spyware and adware programs. 

- The security from the programs are required as they are harmful for the computer and the tools uses the strategies of pre-caching in which the data is automatically cached and when the website is opened again then the fetching is being done from the place where the content is saved. 

- Registry tweaks are used to improve the performance offering the risk management techniques for downloading the resources.

drawImage(image,x,y) method is used to draw an image on the canvas.

In the mesh topology, each computer is connected to the other with a separate physical link in a network. It is most reliable topology as the network does not get down in case one of the nodes is failed.