云南大学软件学院Java实验五.doc

云南大学软件学院实 验 报 告姓名： 定欢 学号： 20141120188 班级： 日期： 2016年10月20日 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（半径）, area（面积）, and diameter（直径）. Include methods named setRadius(), getRadius(), and computeDiameter(), which calculates the circles diameter, and computeArea(), which computes the circles area. Hint: diameter of a circle is twice its radius. Hint: area of a circle is 3.14 multiplied by the square of the radius. Create a class called TestCircle. java whose main method declares 2 Circle objects. Using 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 5 8: The area of a is 78.5The diameter of a is 10.0The area of b is 200.96The diameter of b is 16.0三、 实验内容：1、Circle.java2、CircleTest.java3、结果附加题：1.Monkey.java1. import java.util.Random;2. import java.util.Scanner;3.4. class Monkey 5. private String name;6. private double weight;7. private int age;8. private static String hab = 吃香蕉;9. public void setName(String name)10. = name;11. 12. 13. public void setWeight(double weight)14. this.weight = weight;15. 16. 17. public void setAge(int age)18. this.age = age;19. 20. 21. public String getName()22. return name;23. 24. 25. public double getWeight()26. return weight;27. 28. 29. public int getAge()30. return age;31. 32. /默认构造方法33. public Monkey()34. 35. 36. 37. /带参数构造方法38. public Monkey(String name, double weight, int age)39. = name;40. this.weight = weight;41. this.age = age;42. 43. 44. public void climbTree()45. Random r = new Random();46. int high = r.nextInt(60)+40;47. int banana = r.nextInt(54);48. System.out.println(name +会爬树+能爬+high);49. 50. if(high=60)51. System.out.println(name+会爬树，+能爬+high+，+摘到+banana+香蕉);52. System.out.println(剩下+(BananaTree.BanaSum-banana)+香蕉);53. 54. 55. else56. System.out.println(不能摘到香蕉);57. 58. 59. 60. 2.BananaTree:public class BananaTree double treeHigh;static double BanaSum;public void settreeHigh(double treeHigh)this.treeHigh = treeHigh;public void setBanaSum(double BanaSum)this.BanaSum = BanaSum;public double treeHigh()return treeHigh;public double getBanaSum()return BanaSum;public BananaTree()public BananaTree(double treeHigh,double BanaSum)this.treeHigh = treeHigh;this.BanaSum = BanaSum;3.MonkeyTest.javapublic class MonkeyTest public static void main(String args) / TODO Auto-generated method stubMonkey monkey1 = new Monkey();monkey1.setName(甲);monkey1.setAge(3);monkey1.setWeight(40);Monkey monkey2 = new Monkey(乙, 43, 3);BananaTree bt = new BananaTree();bt.settreeHigh(86)