java实验5云南_3云南大学软件学院JAVA实验五

云南大学软件学院

实验 告

姓名：王增伟学 ：20111120083班级：软件工程日期：2014.10.21成绩：

JAVA实验五

一、实验目的：

Applying OO Concepts Using Java

二、实验要求：

Create a class called Circle.java with fields named radius,area, and diameter.Include methods named setRadius(),getRadius,and computeDiameter(),which calculates the circle’s diameter,and computeArea(),which computes the circle’s area.

Hint:diameter of a circle is twice its radius.

Hint:area of a circle is3.14multiplied by the square of the radius.

Create a class called TestCircle.java whose main method declares 2Circle http://www.doczj.com/doc/c2bbc38503d276a20029bd64783e0912a2167cdd.htmling setRadius()method,assign one Circle a small radius value and assign another a larger radius value.Call

computeDiameter()and computeArea for each circle and display the results.

Output result of using command input”58″:

The area of a is78.5

The diameter of a is10.0

The area of b is200.96

The diameter of b is16.0

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