Answer:
d. if (radius > 0) System.out.println(radius * radius * 3.14159);
Explanation:
The positive values are those values that are greater than 0(zero).0 is considered to be nonnegative number it is neither positive nor negative and for a zero radius the area will be 0.As we know the are of the circle is π*radius*radius, and π is 3.14159.So the correct answer matching to this condition is option d.
Which checks if the radius is greater than 0 then find the radius and print it.
Cloud computing, also known as cloud services, cloud concepts or simply the cloud, is a paradigm that allows to offer computer services. through a network, which is usually the Internet.
(data persistence, authentication, messaging, etc.). for example, a Linux system, a web server, and a programming environment such as Perl or Ruby).
Commercial examples are Google App ,Microsoft Azure,
Answer:
- RFID tags in shopping mall.
- Browsing the internet.
- Mobile phone calls
Explanation:
Radio frequency identification tag (RFID) in a device that holds personal information of a user electromagnetically. it is used in shopping mall, installed in the shopper's phone or a card, in which all payments are done automatically.
The internet is a global network of devices. With a subscription to a internet service provider, a user can surf the internet at any time of the day.
Mobile phones are portable devices, procured by a user for on-the-go calls. This cell phones have databases with information of cell tower connections, for easy switching for flexible but quality call adaptation.
Answer:
Software, instructions that tell a computer what to do. Software comprises the entire set of programs, procedures, and routines associated with the operation of a computer system. The term was coined to differentiate these instructions from hardware — i.e., the physical components of a computer system.
Explanation:
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Main memory is RAM (random access memory) that is so programs can save data. Without ram, whenever you would write something in a text document it would delete it. Secondary storage is so you can save the file and go back to it.
