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:
B
Explanation:
Determining how the user could interact with the app varies person to person, the others are essential to creating apps though.
Having constraints on a design will change the engineering process and the process will take a long time to finish. The process eats up time, quality and budget especially when it involves prototypes and the like. Some common constraints involve the design itself and the engineer.
I'm not sure why you would need to. An unresponsive program should not effect the integrity of the system to require a reboot.
If an unresponsive program is being particular persistent and won't exit, CTRL + ALT + DEL then Task Manager, and clicking on the program in the "Processes" tab and clicking "End Task" is a reliable way to get rid of it.