static练习: 编写一个类实现银行账户的概念，包含的属性有“帐号”、“密 码”、“存款余额”、“利率”、“最小余额”，定义封装这些 属性的方法。账号要自动生成。 编写主类，使用银行账户类，

static练习编写一个类实现银行账户的概念，包含的属性有“帐号”、“密
码”、“存款余额”、“利率”、“最小余额”，定义封装这些
属性的方法。账号要自动生成。
编写主类，使用银行账户类，输入、输出3个储户的上述信息。
考虑：哪些属性可以设计成static属性。

static练习,代码演示不唯一.
代码实现:

public class Account {private int id;private int password;private double balance;private static double interestRate;private static  double minMoney=1.0;private static int init = 1001;//用于自动生成id使用的public Account() {id=init++;}public Account(int password, double balance) {id=init++;this.password = password;this.balance = balance;}public int getId() {return id;}public int getPassword() {return password;}public void setPassword(int password) {this.password = password;}public double getBalance() {return balance;}public void setBalance(double balance) {this.balance = balance;}public static double getInterestRate() {return interestRate;}public static void setInterestRate(double interestRate) {Account.interestRate = interestRate;}public static double getMinMoney() {return minMoney;}public static void setMinMoney(double minMoney) {Account.minMoney = minMoney;}@Overridepublic String toString() {return "Account{" +"id=" + id +", password=" + password +", balance=" + balance +'}';}
}

public class AccountTest{public static void main(String[] args) {Account account=new Account(654123,50000);Account account1=new Account(123456,20000);Account account2=new Account(123654,745754);Account.setInterestRate(0.012);Account.setMinMoney(30);System.out.println(account.getInterestRate());System.out.println(account.getMinMoney());System.out.println(account);System.out.println(account1);System.out.println(account2);}}

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