「java存款业务」java银行存钱
本篇文章给大家谈谈java存款业务，以及java银行存钱对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
- 1、用Java编写银行账户存取款业务，急求！！
- 2、如何用Java线程实现银行的存款取款问题最好能写出编出的具体程序
- 3、JAVA写个存款取款功能 程序
- 4、JAVA编写银行账户程序摸拟银行账户的存\取款操作
- 5、JAVA高手来，题目是：自定义异常类，实现银行的存钱和取钱业务
用Java编写银行账户存取款业务，急求！！
public class Account {
protected String accId;
protected String name;
protected double money;
public Account (String accId,String name){
this(accId,name,0);
}
public Account (String accId,String name,double money){
this.accId = accId;
this.name = name;
this.money = money;
}
public void saveMoney(double money){
if(money = 0){
System.out.println("存款金额必须大于0");
}
this.money += money;
System.out.println("存款成功");
}
public double getMoney(double money){
if(money = 0){
System.out.println("取款金额必须大于0");
return 0;
}
if(this.money = money){
System.out.println("余额不足，无法取款");
return 0;
}
this.money -= money;
System.out.println("取款成功");
return money;
}
public double getBalance(){
return this.money;
}
protected double getOverdraft(){
return 0;
}
// 实现了equals方法，list比较时才能正确
@Override
public boolean equals(Object obj) {
if(obj == null){
return false;
}
if(this == obj){
return true;
}
if(obj instanceof Account){
return this.accId.equals(((Account)obj).accId);
}
return false;
}
@Override
public String toString() {
return "账户=" + accId + ",名字=" + name + ",余额=" + money;
}
}
public class Bank {
// Account实现了equals方法，list查找时才能正确
private ListAccount usersAccounts;
public Bank() {
usersAccounts = new ArrayListAccount();
}
public void addAccount(Account account) {
if (usersAccounts.contains(account)) {
System.out.println("添加失败，不能添加同样的账户");
return;
}
usersAccounts.add(account);
}
public boolean delAccount(Account account) {
return usersAccounts.remove(account);
}
public boolean delAccount(String accId) {
return delAccount(new Account(accId, null));
}
public boolean existAccount(Account account) {
return usersAccounts.contains(account);
}
public boolean existAccount(String accId) {
return existAccount(new Account(accId, null));
}
public Account getAccount(String accId){
return usersAccounts.get(usersAccounts.indexOf(new Account(accId, null)));
}
public double getAllMoney() {
// 不考虑是否溢出，只是把所有用户余额相加
double result = 0;
for (Account account : usersAccounts) {
result += account.getBalance();
}
return result;
}
public double getAllOverdraft() {
// 不考虑是否溢出
double result = 0;
for (Account account : usersAccounts) {
result += account.getOverdraft();
}
return result;
}
public int getAccountNum() {
return usersAccounts.size();
}
public int getCreditAccountNum() {
int num = 0;
for (Account account : usersAccounts) {
// instanceof 性能没有简单的方法快。
if (account instanceof CreditAccount) {
num++;
}
}
return num;
}
public int getSavingAccountNum() {
int num = 0;
for (Account account : usersAccounts) {
if (account instanceof SavingAccount) {
num++;
}
}
return num;
}
public ListAccount getAllAccount() {
return usersAccounts;
}
}
public class CreditAccount extends Account{
private double overdraft;
public CreditAccount(String accId,String name){
super(accId, name);
this.overdraft = 1000;
}
public CreditAccount(String accId,String name,double money){
this(accId, name,money,1000);
}
public CreditAccount(String accId,String name,double money,double overdraft){
super(accId, name,money);
this.overdraft = overdraft;
}
@Override
public double getMoney(double money) {
if(money = 0){
System.out.println("取款金额必须大于0");
return 0;
}
if(this.money + overdraft = money){
System.out.println("余额不足，无法取款");
return 0;
}
this.money -= money;
System.out.println("取款成功");
return money;
}
@Override
public double getOverdraft(){
return overdraft;
}
@Override
public String toString() {
return "账户=" + accId + ",名字=" + name + ",余额=" + money + ",透支=" + overdraft;
}
}
public class SavingAccount extends Account {
public SavingAccount(String accId, String name) {
super(accId, name);
}
public SavingAccount(String accId, String name, double money) {
super(accId, name, money);
}
@Override
public double getMoney(double money) {
return super.getMoney(money);
}
@Override
public double getOverdraft() {
return super.getOverdraft();
}
}
public class Test {
private static Bank bank = new Bank();
public static void main(String[] args) {
Test.genAccount();
// 开户
Account a1 = new CreditAccount("1", "1", 200, 2000);
Account a2 = new SavingAccount("2", "2", 300);
Account a3 = new SavingAccount("3", "3", 400);
Account a4 = new CreditAccount("4", "4", 500, 2000);
Account a5 = new CreditAccount("4", "5", 600, 2000); // 帐号4重
bank.addAccount(a1);
bank.addAccount(a2);
bank.addAccount(a3);
bank.addAccount(a4);
bank.addAccount(a5);
showNowAccount();
// 销户
bank.delAccount("1");
bank.delAccount("2");
showNowAccount();
// 存款
if(bank.existAccount("3")){
Account acc = bank.getAccount("3");
acc.saveMoney(100);
}
showNowAccount();
// 取款
if(bank.existAccount("3")){
Account acc = bank.getAccount("3");
System.out.println("余额=" + acc.getBalance());
acc.getMoney(100);
System.out.println("余额=" + acc.getBalance());
acc.getMoney(1000);
System.out.println("余额=" + acc.getBalance());
}
if(bank.existAccount("4")){
Account acc = bank.getAccount("4");
System.out.println("余额=" + acc.getBalance());
acc.getMoney(100);
System.out.println("余额=" + acc.getBalance());
acc.getMoney(1000);
System.out.println("余额=" + acc.getBalance());
acc.getMoney(10000);
System.out.println("余额=" + acc.getBalance());
}
System.out.println(bank.getAccountNum());
System.out.println(bank.getAllMoney());
System.out.println(bank.getAllOverdraft());
System.out.println(bank.getCreditAccountNum());
System.out.println(bank.getSavingAccountNum());
}
public static void genAccount(){
String s = "1000 0000 0000 000";
Account a = null;
for(int i = 1; i 11; i ++){
if((i 2) == 0){
a = new CreditAccount(s + String.valueOf(i), "账户" + String.valueOf(i));
} else {
a = new SavingAccount(s + String.valueOf(i), "账户" + String.valueOf(i));
}
bank.addAccount(a);
}
}
public static void showNowAccount(){
for(Account account : bank.getAllAccount()){
System.out.println(account);
}
}
}
// 面向对象，看多写多了就会了，简单的随便写的，有错误先不用太纠结。
如何用Java线程实现银行的存款取款问题最好能写出编出的具体程序
AccountTest.java class BankAccount //定义银行账户类BankAccount{private static int amount =2000; //账户余额最初为2000public void despoit(int m) //定义存款的方法{amount=amount+m;System.out.println("晓明存入["+m+"元]");}public void withdraw(int m) //定义取款的方法{amount=amount-m;System.out.println("张新取走["+m+"元]");if(amount0)System.out.println("***余额不足！***)；public int balance() //定义得到账户余额的方法{return amount;}}classicCustomerextendsThread {String name;BankAccount bs; //定义一个具体的账户对象public Customer(BankAccount b,String s){name=s;bs=b;}public static void cus(String name,BankAccount bs) //具体的账户操作方法{if(name.equals("小明")) //判断用户是不是小明{try{for(int i=0;i6;i++) //用户晓明则向银行存款6次，每次1000元 {Thread.currentThread().sleep((int)(Math.random()*300));bs.despoit(1000);}}catch(InterruptedException e){}}else{try{for(int i=0;i6;i++) //用户不是小明则从银行取款6次，每次1000元{Thread.currentThread().sleep((int)(Math.random()*300));bs.withdraw(1000); }}catch(InterruptedException e){} }}public void run() //定义run方法}cus(name,bs); }}public classAccountTest{public static void main(String [] args) throws InterruptedException{BankAccount bs=new BankAccount();Customer customer1=new Customer(bs,"小明");Customer customer2=new Customer(bs,"张新");Thread t1=new Thread(customer1);Thread t2=new Thread(customer2);t1.Start（）；t2.start();Thread.currentThread().sleep(500);}}
JAVA写个存款取款功能 程序
public class Bank
{
private long balance=0;
public Bank(){}
public void draw(int x) //存款
{
if(x=balance)
{
balance=balance-x;
System.out.println("Draw "+x+" Yuan success!");
}
else
{
System.out.println("The balance remain is not enough!");
}
}
public void deposit(int x) //取款
{
balance=balance+x;
System.out.println("Deposit "+x+" Yuan success!");
}
public void check() //查询
{
System.out.println("The balance remained is "+balance+" Yuan
");
}
public static void main(String[] args)
{
Bank bank1=new Bank();
bank1.deposit(10000);
bank1.check();
bank1.draw(3000);
bank1.check();
bank1.draw(8000);
bank1.deposit(5000);
bank1.check();
bank1.draw(8000);
bank1.check();
}
}
JAVA编写银行账户程序摸拟银行账户的存\取款操作
public class ATM {
public static void main(String[] args) {
// 开立帐号
Account account = new Account();
// 在 account 中存 10,000 元
account.setBalance(10000);
// 检查 account 中的存款
System.out.println("帐户原始金额 : " + account.getBalance() + " 元");
// 小明, 小华与小英一起对 account 进行提款的动作
WithDraw s1 = new WithDraw("小明", account, 5000); // 小明 在 account 中提 5000 元
WithDraw s2 = new WithDraw("小华", account, 2000); // 小华 在 account 中提 2000 元
WithDraw s3 = new WithDraw("小英", account, 4000); // 小英 在 account 中提 4000 元
s1.start();
s2.start();
s3.start();
}
}
//帐户
class Account {
private int balance; // 帐户馀额
public int getBalance() { // 取得帐户馀额
return balance;
}
public void setBalance(int money) { // 设定帐户馀额
balance = money;
}
// 提款方法
public void withDraw(Account account, int withdrawMoney) {
String tName = Thread.currentThread().getName(); // tName=提款人
System.out.println(tName + " 开始提款 ... ");
boolean withDrawStatus; // 提款状态 说明:false=提款失败, true=提款成功
synchronized(ATM.class) {
int tmpBalabce = account.getBalance(); // 取得最新帐户馀额
//用 for-loop 模拟提款时系统所花的时间
for(double delay=0;delay99999999;delay++) {
// ... 提款进行中 ...
}
tmpBalabce = tmpBalabce - withdrawMoney; // 最新帐户馀额 - 欲提款金额 (用来判断是否馀额足够的依据)
if (tmpBalabce 0) { // 判断是否馀额足够
withDrawStatus = false;
System.out.println("....................");
System.out.println(" 帐户馀额不足！");
System.out.println("....................");
} else {
withDrawStatus = true;
account.setBalance(tmpBalabce); // 回存account最後剩馀金额
}
}
System.out.println(tName + "的交易单:");
System.out.println("\t欲提款金额：" + withdrawMoney + "元");
System.out.println("\t帐户馀额：" + account.getBalance());
if(withDrawStatus == true){
System.out.println(tName + " 完成提款 ... ");
} else {
System.out.println(tName + " 提款失败 ... ");
}
System.out.println("-------------------------------");
}
}
// 提款类别
class WithDraw extends Thread {
private Account account; // 帐号
private int withdrawMoney; // 欲提款的金额
// tName:执行绪名称, account:Account物件名称, withdrawMoney:欲提款金额
public WithDraw(String tName, Account account, int withdrawMoney) {
setName(tName);
this.account = account;
this.withdrawMoney= withdrawMoney;
}
public void run() {
// 执行提款动作(account:帐号, withdrawMoney 欲提款金额)
account.withDraw(account, withdrawMoney); // 执行提款动作
}
}
JAVA高手来，题目是：自定义异常类，实现银行的存钱和取钱业务
3个类,开始...
1,
/**
*
* 自定义异常类
*
*/
public class MyException extends Exception {
//验证交易类型正确性
public void TransactionsInfo(){
System.out.println("交易失败,只能输入0或者1");
}
//验证金额正确性
public void amountInfo(){
System.out.println("交易失败,输入金额不能为负数或者字符");
}
}
2,
public class User {
/**
* 用户信息类
*/
private String name; //用户名
private float amount; //用户金额
public User(String name,float amount){
this.name = name;
this.amount = amount;
}
public float getAmount() {
return amount;
}
public void setAmount(float amount) {
this.amount = amount;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
// 交易的方法,需要接受两个参数,一个是代表交易方式(取款,或者存款,),一个代表交易金额
public User Transactions() throws MyException{
System.out.println("请输入您的交易方式.0代表存款,1代表取款");//提示用户交易方式
BufferedReader br1=new BufferedReader(new InputStreamReader(System.in));
BufferedReader br2=new BufferedReader(new InputStreamReader(System.in));
String flag = null;
try {
flag = br1.readLine();
} catch (IOException e) {
e.printStackTrace();
}
if("0".equals(flag)){
}else if("1".equals(flag)){
amount=-amount;//因为1代表取款,所以变成负数
}else{
new MyException().TransactionsInfo(); //打印类型错误
return this;
}
String amountString = null;
try {
amountString = br2.readLine();
} catch (IOException e) {
e.printStackTrace();
}
float amount = 0.0f;
try{
amount = Float.parseFloat(amountString);
}catch(Exception ex){
throw new MyException();
}
this.amount = this.amount+amount;//交易
return this; //返回用户信息
}
}
3,
public class MoneyTest {
/**
* 测试类
* @param args
*/
public static void main(String[] args){
User user = new User("张三",123.4f); //测试用户
System.out.println("用户"+user.getName()+"交易前的金额为:"+user.getAmount());
try {
user.Transactions();
} catch (MyException e) {
// TODO Auto-generated catch block
e.amountInfo();
}//调用方法
System.out.println("交易后的金额为"+user.getAmount());
}
}
java存款业务的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于java银行存钱、java存款业务的信息别忘了在本站进行查找喔。
发布于：2022-11-25，除非注明，否则均为原创文章，转载请注明出处。