Answer:
Both (i) and (ii) are valid in Java
Explanation:
In (i) 'area' is a variable property of the object myCircle. It could be assigned a value. In this case it has been assigned a value equal to the product of 3.14 and the square of the read input of type double from the keyboard.
After assigning a value to area, it could be printed directly to the console using the println method.
In (ii) 'area' is a method property of the object myCircle. It could be called when the value of the radius(r) has been set using a second method 'set' of myCircle. The call to myCircle.area() probably prints the area of the circle, myCircle, to the console.
In summary, though different, both are valid ways of doing the same thing.
Hope this helps!
Answer
This is because without them no one would know how much each symbol represents, and no one would be able to decipher the message.
Explanation
Number system is a way to represent numbers. It is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner.
In computing or in a computer number systems are the techniques which represents numbers in the computer system architecture where every value that you are saving or getting into/from computer memory has a defined number system.Computer architecture supports . Binary number system,Octal number system and Decimal number system.
I'd say it's A because source file originally means "a file that contains original data," which I believe A has the closest meaning to it.
