Java实验报告修改版

1、开课实验室：现代信息交流中心403 开课时间: 2015年3月1日 实验报告:2015年4月8日 学院名称信息工程学院年级、专业、班信管1303班学号姓名张云森同组姓名无课程名称Java程序设计实验项目名称Java面向对象程序设计（1）指导教师尉斌实验类型验证 综合 设计 创新 成绩教师评语 教师签名： 年 月 日一、 实验目的：熟悉类、属性、构造方法、普通方法、对象的使用方法。二、实验内容：（抄写课本296页8.2、8.7、8.8的题目至此。抄写英文即可）8.2 （The stock class）Following the example of the Circle class in $8.

2、2,design a class named Stock that contains:n A string data field named symbol for the stocks symbol.n A string datd field named name for the stocks name.n A double data field named previousClosingPrice that stores the stock price for the previous day.n A constructor that creates a stock with specifi

3、ed symbol and name.n A method named getChangePercent() that returns the percentage changed from previousClosingPrice to currentPrice.Draw the UMLdiagram for the class.Implement the class.Write a test program that creates a Stock object with the stock symbol JAVA,the name Sun Microsystems Inc,and the

4、 previous closing price of 4.5.Set a new current price to 4.35 and display the price-change percentage. 8.7（The Account class）Design a class named Account that contains:n A private int data field named id for the account(default 0).n A private double 三、源代码清单：1、源代码清单方法一：package 实验2;public class shiya

5、n1 public static class Aprivate String number1;private double newPrice;public static void main(Stringargs)A symbol= new A();System.out.println("The stock number is :"+symbol.number1);A name=new A("中国银行");System.out.println("The stock name is :"+1);A Price=new A(3900,400

6、0);System.out.println("The stock PreviousPrice is :"+Price.oldPrice);System.out.println("The stock CurrentPrice is :"+Price.newPrice);System.out.println("The stock getChangePercent is :"+Price.getChangePercent();String number11,name1;double PreviousPrice,CurrentPrice,ol

7、dPrice,newPrice1;A()number1 = "000001"A(String name2)name1=name2;A(double Price1,double Price2)oldPrice=Price1;newPrice=Price2;double getChangePercent()return (newPrice-oldPrice)/oldPrice;方法二：package 实验2;public class shiyan11 public static class Stock private String symbol;private String n

8、ame;public Stock(String symbol, String name)this.symbol = symbol; = name;public static void main(String args) Stock name = new Stock("JAVA", "Sun Microsystems Inc");System.out.println(name.symbol+" "+","+"The price-change percentage betwwen"+ name.pr

9、eviousClosingPrice + "and" + name.currentPrice + "is"+ name.getChangePercent();double previousClosingPrice = 4.5;double currentPrice = 4.35;double getChangePercent() return (previousClosingPrice - currentPrice) / previousClosingPrice;2、方法一：package 实验2;public class Account private

10、 int ID=0;private double balance=0;private double annuanIntersetRate=0;private String dataCreated="2015年1月1日"public Account (int newID)ID=newID;public int getid()return ID;public Account (double newBalance,double newAnnuanIntersetRate)balance=newBalance;annuanIntersetRate=newAnnuanInterset

11、Rate;public double getBalance()return balance;public double getannuaIntersetRate()return annuanIntersetRate/12;public Account(String newDataCreated)dataCreated=newDataCreated;public String getdataCreated()return dataCreated;public double getWithdraw()return balance-2500;public double getDeposit()ret

12、urn balance-2500+3000;package 实验2;public class Account1 public static void main(Stringargs)Account myID=new Account(1122);System.out.println("The ID is :"+myID.getid();Account myBalance=new Account(20000.0,0.045);System.out.println("The banlane is :"+myBalance.getBalance();System

13、.out.println("The newBalance is :"+myBalance.getWithdraw();System.out.println("The lastBalance is :"+myBalance.getDeposit();System.out.println("The data created is :"+myBalance.getdataCreated();System.out.println("The month rate is :"+myBalance.getannuaInterse

14、tRate(); 方法二：package exercise;import java.util.Date;import java.util.Scanner;public class TestAccount public static void main(String args)Account account = new Account("1122",20000);account.setAnnualInterestRate(4.5);account.withdraw(2500);account.deposit(3000);System.out.println("The

15、 balance is :"+account.getbalance();System.out.println("Monthly interest is "+ account.getMonthlyTnterest(); System.out.println("This account was created at "+ account.getDateCreated();class AccountString ID;double balance=0.0;double annualInterestRate;Date dateCreated;Accou

16、nt(String newID,double balance)ID=newID;this.balance=balance;dateCreated=new Date(); void setAnnualInterestRate(double annualInterestRate)this.annualInterestRate=annualInterestRate;public Date getDateCreated()return dateCreated;public double getbalance()return balance;public double getMonthlyTnteres

17、t()return balance * (annualInterestRate / 1200);public double withdraw(double number)balance=balance-number;return balance;public double deposit(double number)balance=balance+number;return balance;3、源代码清单package 实验2;public class Fanint speed=1;boolean on=false;double radius=5;String color="blue"public Fan()public void turnOn()on=true;public void turnOff()on=false;public void setSpeed(int newSpeed)if(on&&newSpeed>=1&&newSpeed<=3)speed=newSpeed;public void setColor(String newColor)if (on