Question

java编程，各位高手，越简单越好。

声明银行账户类，成员变量包括账号、储户姓名、开户时间、身份证号码、存款余额等账户信息，成员方法包括开户、存款、查询、（余额、明细）
销户等操作。

Answer 1

public class Account{
private String acctNumber;
private String customerName;
private String acctOpenTime;
private String customerIdNum;
private double balance;

public Account(String accoutnNumber){
this.acctNumber = accoutnNumber;
}

public Account openAccount(String accountNumber){
return new Account(accountNumber);
}

public void save(double money){
this.balance += money;
}

public void query(){
System.out.println("Balance is: " + balance);
//....
}

}