Answer:
The correct option : b. new GridLayout(4,3)
Explanation:
 The total number of rows are 4 and total number of columns are 3.
So the total keys can be added is 4*3=12. This is suited for telephone keypad.
 
        
             
        
        
        
Answer:  .com — Commercial businesses.
 .org — Organizations (generally charitable).
 .net — Network organizations.
 .gov — U.S. government agencies.
 .mil — Military.
 .edu — Educational facilities, like universities.
Explanation:
 
        
                    
             
        
        
        
Commercial use is not a creative commons license
        
             
        
        
        
Explanation:
A computer system can be divided into two components which are responsible for providing the mechanisms to input and output data, to manipulate and process data, and to electronically control the various input, output, and their storage. ... They are known as hardware and software.
 
        
                    
             
        
        
        
Answer:
Option A. 
Explanation:
In 3D computer graphics, this process determines which elements should not be visible from the desired point of view, and will prevent them from rendering. Thus, objects that lie behind opaque surfaces such as walls or panels, will not be rendered. 
A good rendering algorithm helps to optimize the graphic engine because it will load as few elements as possible. Therefore, in larger worlds, the engine will remain at a stable speed and will be more efficient.