javabank項目word版

1、傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！java 基礎(chǔ)實戰(zhàn)bank 項目實驗題目 1：創(chuàng)建一個簡單的銀行程序包實驗?zāi)康模簀ava 語言中面向?qū)ο蟮姆庋b性及構(gòu)造器的創(chuàng)建和使用。實驗說明：在這個練習(xí)里，創(chuàng)建一個簡單版本的 account 類。將這個源文件放入 banking 程序包中。在創(chuàng)建單個帳戶的默認(rèn)程序包中，已編寫了一個測試程序 testbanking。這個測試程序初始化帳戶余額，并可執(zhí)行幾種簡單的事物處理。最后，該測試程 序顯示該帳戶的最終余額。提示：1創(chuàng)建 banking 包2 在 banking 包下創(chuàng)建 account 類。該類必須實現(xiàn)上述 uml 框圖中的模型。a.

2、聲明一個私有對象屬性：balance，這個屬性保留了銀行帳戶的當(dāng)前（或 即時）余額。b. 聲明一個帶有一個參數(shù)（init_balance）的公有構(gòu)造器，這個參數(shù)為 balance 屬性賦值。c. 聲明一個公有方法 gebalance，該方法用于獲取經(jīng)常余額。d. 聲明一個公有方法 deposit,該方法向當(dāng)前余額增加金額。e. 聲明一個公有方法 withdraw 從當(dāng)前余額中減去金額。3打開testbanking.java文件，按提示完成編寫，并編譯 testbanking.java 文件。4 運行 testbanking 類?？梢钥吹较铝休敵鼋Y(jié)果：creating an account wi

3、th a 500.00 balancewithdraw 150.00deposit 22.50withdraw 47.62the account has a balance of 324.88/testbanking.java 文件/* this class creates the program to test the banking classes.* it creates a new bank, sets the customer (with an initial balance),傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！* and performs a series of

4、 transactions with the account object.*/package test;import banking.*;public class testbanking public static void main(string args) account account; / create an account that can has a 500.00 balance. system.out.println(creating an account with a 500.00 balance.); /code system.out.println(withdraw 15

5、0.00); /code system.out.println(deposit 22.50); /code system.out.println(withdraw 47.62); /code / print out the final account balance system.out.println(the account has a balance of + account.getbalance(); java 基礎(chǔ)實戰(zhàn)bank 項目實驗題目 2：擴展銀行項目，添加一個 customer 類。customer 類將包含一個 account對象。實驗?zāi)康模菏褂靡妙愋偷某蓡T變量。傳播優(yōu)秀w

6、ord版文檔 ，希望對您有幫助，可雙擊去除！提 示：1. 在banking包下的創(chuàng)建customer類。該類必須實現(xiàn)上面的uml圖表中的模型。a. 聲明三個私有對象屬性：firstname、lastname 和 account。b. 聲明一個公有構(gòu)造器，這個構(gòu)造器帶有兩個代表對象屬性的參數(shù)（f 和 l）c. 聲明兩個公有存取器來訪問該對象屬性，方法 getfirstname 和 getlastname 返回相應(yīng)的屬性。d. 聲明 setaccount 方法來對 account 屬性賦值。e. 聲明 getaccount 方法以獲取 account 屬性。2. 在 exercise2 主目錄里，

7、編譯運行這個 testbanking 程序。應(yīng)該看到如下輸出結(jié)果:creating the customer jane smith.creating her account with a 500.00 balance.withdraw 150.00deposit 22.50withdraw 47.62customer smith, jane has a balance of 324.88/testbanking.java 文件/* this class creates the program to test the banking classes.* it creates a new bank

8、, sets the customer (with an initial balance),* and performs a series of transactions with the account object.*/import banking.*;public class testbanking 傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ public static void main(string args) customer customer; account account; / create an account that can has a 500.00 bal

9、ance. system.out.println(creating the customer jane smith.); /code system.out.println(creating her account with a 500.00 balance.); /code system.out.println(withdraw 150.00); /code system.out.println(deposit 22.50);/code system.out.println(withdraw 47.62); /code / print out the final account balance

10、 system.out.println(customer + customer.getlastname() + , + customer.getfirstname() + has a balance of + account.getbalance(); java 基礎(chǔ)實戰(zhàn)bank 項目實驗題目 3：修改 withdraw 方法以返回一個布爾值，指示交易是否成功。實驗?zāi)康模菏褂糜蟹祷刂档姆椒?。?示：1 修改 account 類a. 修改 deposit 方法返回 true（意味所有存款是成功的）。b. 修改 withdraw 方法來檢查提款數(shù)目是否大于余額。如果amt小于 balance, 則

11、從余額中扣除提款數(shù)目并返回 true，否則余額不變返回 false。傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！2 在 exercise3 主目錄編譯并運行 testbanking 程序，將看到下列輸出;creating the customer jane smith.creating her account with a 500.00 balance. withdraw 150.00: truedeposit 22.50: true withdraw 47.62: true withdraw 400.00: falsecustomer smith, jane has a balan

12、ce of 324.88/testbanking.java 文件/* this class creates the program to test the banking classes.* it creates a new bank, sets the customer (with an initial balance),* and performs a series of transactions with the account object.*/import banking.*;public class testbanking public static void main(strin

13、g args) customer customer; account account; / create an account that can has a 500.00 balance. system.out.println(creating the customer jane smith.);/code system.out.println(creating her account with a 500.00 balance.); /code / perform some account transactions system.out.println(withdraw 150.00: +

14、account.withdraw(150.00); system.out.println(deposit 22.50: + account.deposit(22.50); system.out.println(withdraw 47.62: + account.withdraw(47.62); system.out.println(withdraw 400.00: + account.withdraw(400.00);傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ / print out the final account balance system.out.println(cust

15、omer + customer.getlastname() + , + customer.getfirstname() + has a balance of + account.getbalance(); java 基礎(chǔ)實戰(zhàn)bank 項目實驗題目 4：將用數(shù)組實現(xiàn)銀行與客戶間的多重關(guān)系。實驗?zāi)康模涸陬愔惺褂脭?shù)組作為模擬集合操作。提示：對銀行來說，可添加 bank 類。 bank 對象跟蹤自身與其客戶間的關(guān)系。用 customer 對象的數(shù)組實現(xiàn)這個集合化的關(guān)系。還要保持一個整數(shù)屬性來跟蹤銀 行當(dāng)前有多少客戶。a. 創(chuàng)建 bank 類b. 為 bank 類 增 加 兩 個 屬 性 ： custo

16、mers(customer對象的數(shù)組 ) 和 numberofcustomers(整數(shù)，跟蹤下一個 customers 數(shù)組索引)c. 添加公有構(gòu)造器，以合適的最大尺寸（至少大于 5）初始化 customers 數(shù)組。d. 添加 addcustomer 方法。該方法必須依照參數(shù)（姓，名）構(gòu)造一個新的 customer對象然后把它放到 customer 數(shù)組中。還必須把 numberofcustomers 屬性的值加 1。e. 添加 getnumofcustomers 訪問方法，它返回 numberofcustomers 屬性值。f. 添加 getcustomer方法。它返回與給出的index參

17、數(shù)相關(guān)的客戶。g. 編譯并運行 testbanking 程序?？梢钥吹较铝休敵鼋Y(jié)果：傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！customer 1 is simms,janecustomer 2 is bryant,owencustomer 3 is soley,timcustomer 4 is soley,maria/testbanking.java 文件/* this class creates the program to test the banking classes.* it creates a new bank, sets the customer (with an

18、initial balance),* and performs a series of transactions with the account object.*/import banking.*;public class testbanking public static void main(string args) bank bank = new bank(); / add customer jane, simms/code /add customer owen, bryant/code / add customer tim, soley/code / add customer mari

19、a, soley/code for ( int i = 0; i bank.getnumofcustomers(); i+ ) customer customer = bank.getcustomer(i); system.out.println(customer + (i+1) + is + customer.getlastname()+ , + customer.getfirstname();傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ java 基礎(chǔ)實戰(zhàn)bank 項目實驗題目 5：在銀行項目中創(chuàng)建 account 的兩個子類：savingaccount 和 checkingac

20、count實驗?zāi)康模豪^承、多態(tài)、方法的重寫。提 示：創(chuàng)建 account 類的兩個子類：savingaccount 和 checkingaccount 子類a. 修改 account 類；將 balance 屬性的訪問方式改為 protectedb. 創(chuàng)建 savingaccount 類，該類繼承 account 類c. 該類必須包含一個類型為 double 的 interestrate 屬性d. 該類必須包括帶有兩個參數(shù)（balance 和 interest_rate）的公有構(gòu)造器。該構(gòu) 造器必須通過調(diào)用 super(balance)將 balance 參數(shù)傳遞給父類構(gòu)造器。實現(xiàn) check

21、ingaccount 類1 checkingaccount 類必須擴展 account 類2 該類必須包含一個類型為 double 的 overdraftprotection 屬性。3 該類必須包含一個帶有參數(shù)（balance）的共有構(gòu)造器。該構(gòu)造器必須通過調(diào) 用 super(balance)將 balance 參數(shù)傳遞給父類構(gòu)造器。4 給類必須包括另一個帶有兩個參數(shù)（balance 和 protect）的公有構(gòu)造器。該 構(gòu)造器必須通過調(diào)用 super(balance)并設(shè)置 overdragtprotection 屬性，將 balance 參數(shù)傳遞給父類構(gòu)造器。5 checkingaccou

22、nt 類必須覆蓋 withdraw 方法。此方法必須執(zhí)行下列檢查。如 果當(dāng)前余額足夠彌補取款 amount,則正常進行。如果不夠彌補但是存在透支 保護，則嘗試用 overdraftprotection 得值來彌補該差值（balance-amount）. 如果彌補該透支所需要的金額大于當(dāng)前的保護級別。則整個交易失敗，但余 額未受影響。傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！6 在主 exercise1 目錄中，編譯并執(zhí)行 testbanking 程序。輸出應(yīng)為：creating the customer jane smith.creating her savings account

23、 with a 500.00 balance and 3% interest.creating the customer owen bryant.creating his checking account with a 500.00 balance and no overdraft protection.creating the customer tim soley.creating his checking account with a 500.00 balance and 500.00 in overdraft protection.creating the customer maria

24、soley.maria shares her checking account with her husband tim.retrieving the customer jane smith with her savings account.withdraw 150.00: truedeposit 22.50: truewithdraw 47.62: truewithdraw 400.00: falsecustomer simms, jane has a balance of 324.88retrieving the customer owen bryant with his checking

25、 account with no overdraft protection.withdraw 150.00: truedeposit 22.50: truewithdraw 47.62: truewithdraw 400.00: falsecustomer bryant, owen has a balance of 324.88retrieving the customer tim soley with his checking account that has overdraft protection.withdraw 150.00: truedeposit 22.50: truewithd

26、raw 47.62: truewithdraw 400.00: truecustomer soley, tim has a balance of 0.0retrieving the customer maria soley with her joint checking account with husband tim.deposit 150.00: truewithdraw 750.00: falsecustomer soley, maria has a balance of 150.0/testbanking 程序/* this class creates the program to t

27、est the banking classes.* it creates a new bank, sets the customer (with an initial balance),* and performs a series of transactions with the account object.傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！*/import banking.*;public class testbanking public static void main(string args) bank bank = new bank(); customer cu

28、stomer; account account; / / create bank customers and their accounts / system.out.println(creating the customer jane smith.); bank.addcustomer(jane, simms); /code system.out.println(creating her savings account with a 500.00 balance and 3% interest.); /code system.out.println(creating the customer

29、owen bryant.); /code customer = bank.getcustomer(1); system.out.println(creating his checking account with a 500.00 balance and no overdraft protection.); /code system.out.println(creating the customer tim soley.); bank.addcustomer(tim, soley); customer = bank.getcustomer(2); system.out.println(crea

30、ting his checking account with a 500.00 balance and 500.00 in overdraft protection.); /code system.out.println(creating the customer maria soley.); /code customer = bank.getcustomer(3); system.out.println(maria shares her checking account with her husband tim.);傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ customer.s

31、etaccount(bank.getcustomer(2).getaccount(); system.out.println(); / / demonstrate behavior of various account types / / test a standard savings account system.out.println(retrieving the customer jane smith with her savings account.); customer = bank.getcustomer(0); account = customer.getaccount(); /

32、 perform some account transactions system.out.println(withdraw 150.00: + account.withdraw(150.00); system.out.println(deposit 22.50: + account.deposit(22.50); system.out.println(withdraw 47.62: + account.withdraw(47.62); system.out.println(withdraw 400.00: + account.withdraw(400.00); / print out the

33、 final account balance system.out.println(customer + customer.getlastname() + , + customer.getfirstname() + has a balance of + account.getbalance(); system.out.println(); / test a checking account w/o overdraft protection system.out.println(retrieving the customer owen bryant with his checking accou

34、nt with no overdraft protection.); customer = bank.getcustomer(1); account = customer.getaccount(); / perform some account transactions system.out.println(withdraw 150.00: + account.withdraw(150.00); system.out.println(deposit 22.50: + account.deposit(22.50); system.out.println(withdraw 47.62: + acc

35、ount.withdraw(47.62); system.out.println(withdraw 400.00: + account.withdraw(400.00); / print out the final account balance system.out.println(customer + customer.getlastname() + , + customer.getfirstname() + has a balance of + account.getbalance();傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ system.out.println(); /

36、 test a checking account with overdraft protection system.out.println(retrieving the customer tim soley with his checking account that has overdraft protection.); customer = bank.getcustomer(2); account = customer.getaccount(); / perform some account transactions system.out.println(withdraw 150.00:

37、+ account.withdraw(150.00); system.out.println(deposit 22.50: + account.deposit(22.50); system.out.println(withdraw 47.62: + account.withdraw(47.62); system.out.println(withdraw 400.00: + account.withdraw(400.00); / print out the final account balance system.out.println(customer + customer.getlastna

38、me() + , + customer.getfirstname() + has a balance of + account.getbalance(); system.out.println(); / test a checking account with overdraft protection system.out.println(retrieving the customer maria soley with her joint checking account with husband tim.); customer = bank.getcustomer(3); account =

39、 customer.getaccount(); / perform some account transactions system.out.println(deposit 150.00: + account.deposit(150.00); system.out.println(withdraw 750.00: + account.withdraw(750.00); / print out the final account balance system.out.println(customer + customer.getlastname() + , + customer.getfirst

40、name() + has a balance of + account.getbalance(); 傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！實驗題目：5_續(xù)1創(chuàng)建客戶賬戶實驗?zāi)康模篿nstanceof 運算符的應(yīng)用提示：修改customer類1 修改customer類來處理具有多種類型的聯(lián)合賬戶。（例如用數(shù)組表示多重性一節(jié)所作的，該類必須包括以下的公有方法：addaccount(account)，getaccount(int)和getnumofaccounts()。每個customer可以有多個account。（聲明至少有5個）2 完成testbanking程序該程序創(chuàng)建一個客戶

41、和賬戶的集合，并生成這些客戶及其賬戶余額的報告。在testbanking.java文件中，你會發(fā)現(xiàn)注釋塊以/*/來開頭和結(jié)尾。這些注釋只是必須提供的代碼的位置。3 使用instanceof操作符測試擁有的賬戶類型，并且將account_type設(shè)置為適當(dāng)?shù)闹担纾骸皊avingsaccount”或“checkingaccount”。4 編譯并運行該程序，將看到下列結(jié)果customers report=customer: simms, janesavings account: current balance is ￥500.00checking account: current balance

42、 is ￥200.00customer: bryant, owenchecking account: current balance is ￥200.00customer: soley, timsavings account: current balance is ￥1,500.00checking account: current balance is ￥200.00customer: soley, mariachecking account: current balance is ￥200.00savings account: current balance is ￥150.00/test

43、banking程序/*傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！* this class creates the program to test the banking classes.* it creates a set of customers, with a few accounts each,* and generates a report of current account balances.*/import banking.*;import java.text.numberformat;public class testbanking public static vo

44、id main(string args) numberformat currency_format = numberformat.getcurrencyinstance(); bank bank = new bank(); customer customer; / create several customers and their accounts bank.addcustomer(jane, simms); customer = bank.getcustomer(0); customer.addaccount(new savingaccount(500.00, 0.05); custome

45、r.addaccount(new checkingaccount(200.00, 400.00); bank.addcustomer(owen, bryant); customer = bank.getcustomer(1); customer.addaccount(new checkingaccount(200.00); bank.addcustomer(tim, soley); customer = bank.getcustomer(2); customer.addaccount(new savingaccount(1500.00, 0.05); customer.addaccount(n

46、ew checkingaccount(200.00); bank.addcustomer(maria, soley); customer = bank.getcustomer(3); / maria and tim have a shared checking account customer.addaccount(bank.getcustomer(2).getaccount(1);傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！ customer.addaccount(new savingaccount(150.00, 0.05); / generate a report system

47、.out.println(tttcustomers report); system.out.println(ttt=); for ( int cust_idx = 0; cust_idx bank.getnumofcustomers(); cust_idx+ ) customer = bank.getcustomer(cust_idx); system.out.println(); system.out.println(customer: + customer.getlastname() + , + customer.getfirstname(); for ( int acct_idx = 0

48、; acct_idx customer.getnumofaccounts(); acct_idx+ ) account account = customer.getaccount(acct_idx);string account_type = ;/ determine the account type/* step 1:* use the instanceof operator to test what type of account* we have and set account_type to an appropriate value, such* as savings account

49、or checking account.*/ print the current balance of the account/* step 2:* print out the type of account and the balance.* feel free to use the currency_format formatter* to generate a currency string for the balance.*/ 傳播優(yōu)秀word版文檔 ，希望對您有幫助，可雙擊去除！實驗題目：5_續(xù)2實現(xiàn)更為復(fù)雜的透支保護機制注釋-這是練習(xí)1的選擇練習(xí)。它包括了更為復(fù)雜的透支保護機制模型

50、。它使用客戶儲蓄。它使用客戶儲蓄賬戶完成透支保護。本練習(xí)必須在完成上述兩個練習(xí)后進行。實驗?zāi)康模豪^承、多態(tài)、方法的重寫。說明：修改savingaccount類1.仿照練習(xí)1“account類的兩個子類”一節(jié)實現(xiàn)savingsaccount類。2.savingaccount類必須擴展account類。3.該類必須包含一個類型為double的interestrate屬性4.該類必須包括一個帶有兩個參數(shù)（balance和interest_rate）的公有構(gòu)造器。該構(gòu)造器必須通過調(diào)用super（balance）來將balance參數(shù)傳遞給父類構(gòu)造器修改checkingaccount類1.仿照練習(xí)1“a

51、ccount類的兩個子類”一節(jié)實現(xiàn)checkingaccount類。2.checkingaccount類必須擴展account類3.該類必須包括一個關(guān)聯(lián)屬性，稱作protectedby，表示透支保護。該屬性的類型為savingaccount，缺省值必須是null。除此之外該類沒有其他的數(shù)據(jù)屬性。4.該類必須包括一個帶有參數(shù)（balance）的公有構(gòu)造器，該構(gòu)造器必須通過調(diào)用super(balance)將balance參數(shù)傳遞到父類構(gòu)造器。5.修改構(gòu)造器為checkingaccount(double balance,savingaccount protect)構(gòu)造器。該構(gòu)造器必須通過調(diào)用super（balance）將balance參數(shù)傳遞給父類構(gòu)造器。6. checkingaccount類必須覆蓋withdraw方法。該類必須執(zhí)行下面的檢查：如果當(dāng)前余額足夠彌補取款amount，則正常進行。如果不夠彌補但是存在透支保護則嘗試用儲蓄賬戶來彌補這個差值（balance-amount）。如果后一個交易失敗，則整個交易一定失敗，但余額未受影響。修改custo