JAVA上機(jī)實(shí)驗(yàn)報(bào)告.docx

JAVA上機(jī)實(shí)驗(yàn)報(bào)告 學(xué)號(hào)： 姓名： 班級(jí)： 1.實(shí)驗(yàn)題目：編寫一個(gè)名為Octagon的類，它擴(kuò)展GeometricObject并實(shí)現(xiàn)Comaparable和Cloneable接口。假設(shè)八邊形八條邊的變長都相等。它的面積可以使用下面的公式計(jì)算： 面積=（2+42）*邊長*邊長 畫出包括Octagon，GeometricObject，Comaparable，Cloneable的UML圖。編寫一個(gè)測(cè)試程序，創(chuàng)建一個(gè)邊長值為5的Octagon對(duì)象，然后顯示它的面積和周長。使用clone方法創(chuàng)建一個(gè)新對(duì)象，并使用compareTo方法比較這兩個(gè)對(duì)象。2.實(shí)驗(yàn)?zāi)康模和ㄟ^編寫這個(gè)程序，讓學(xué)生逐步了解本章所學(xué)習(xí)的抽象類和接口的知識(shí)重點(diǎn)，會(huì)運(yùn)用本章知識(shí)編寫程序解決實(shí)際問題。3.實(shí)驗(yàn)內(nèi)容：package CalculateOctagon;import java.util.Scanner;public class CalculateOctagon public static void main(String args) public abstract class GeometricObjectprivate String color=white; private boolean filled; private java.util.Date dateCreated; protected GeometricObject() dateCreated=new java.util.Date(); protected GeometricObject(String color,boolean filled) dateCreated=new java.util.Date(); this.color=color; this.filled=filled; public String getcolor() return color; public void setcolor(String color) this.color=color; public boolean isFilled() return filled; public void setFilled(boolean filled) this.filled=filled; public java.util.Date getDateCreated() return dateCreated; public String toString() return created on+dateCreated+ncolor:+color+and filled:+filled; public abstract double getArea(); public abstract double getPerimeter();public class Octagon extends GeometricObject implements Comparable public Object clone() throws CloneNotSupportedException return super.clone(); public int compareto(Object o) if (Area(Octagon)o).Area) return 1; else if (Area(Octagon)o).Area) return -1; else return 0;System.out.print(Please enter a number：); Scanner input=new Scanner(System.in); int length=input.nextInt(); int Perimeter=8*length; double Area=(2+4/Math.sqrt(2)* length * length;System.out.println(The area is: +Area);System.out.println(The Perim