Circumference of a circle = C = 2ar Volume of a cylinder=V=rr*h Area of a cylinder A = 2arh+2r? CylinderTest Cylinder -height: double -sircle: Circle + main) +Cylinder(h: double, c: Circle) +findVolumeO:double +findArea):double Circle V = Tr²h -radius: double A02 n r2 + 2 Arh +Circle(r: double) +findArea0:double +getRadius0:double +setRadius(r: double): void 2ar A = h(2ar) A = 2ar + h(2 ar) areas of top and bottom circles area of retangle
Concepts in Designing Database
A database design is the process of data organization based on a database model. The process deals with identifying what data should be stored in a database and how data elements relate to each other.
Entity Relationship Diagram
Complex real-world applications call for large volumes of data. Therefore, it is necessary to build a great database to store data safely and coherently. The ER data model aids in the process of database design. It helps outline the structure of an organization’s database by understanding the real-world interactions of objects related to the data. For example, if a school is tasked to store student information, then analyzing the correlation between the students, subjects, and teachers would help identify how the data needs to be stored.
Code this in c sharp ,As the following UML diagram illustrates, an aggregation association appears as a solid line with an unfilled diamond at the association end, which is connected to the whole that represents the aggregate, implement the UML diagram. inside the CylenderTest class first create a Circle object then use it to create a Cylinder object, after that print out the volume and area of the Cylinder. Area of a circle A = πr²
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