Java语言声明账户类Account，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，取款，查询，销户等操作

Java语言声明账户类Account，可以包含以下成员变量和成员方法：

public class Account {
    private String accountNumber; // 账号
    private String accountHolderName; // 储户姓名
    private Date openingDate; // 开户时间
    private String idNumber; // 身份证号码
    private double balance; // 存款余额

    // 构造方法
    public Account(String accountNumber, String accountHolderName, Date openingDate, String idNumber, double balance) {
        this.accountNumber = accountNumber;
        this.accountHolderName = accountHolderName;
        this.openingDate = openingDate;
        this.idNumber = idNumber;
        this.balance = balance;
    }

    // 开户
    public void openAccount(String accountNumber, String accountHolderName, Date openingDate, String idNumber, double balance) {
        this.accountNumber = accountNumber;
        this.accountHolderName = accountHolderName;
        this.openingDate = openingDate;
        this.idNumber = idNumber;
        this.balance = balance;
    }

    // 存款
    public void deposit(double amount) {
        balance += amount;
    }

    // 取款
    public void withdraw(double amount) {
        if (balance >= amount) {
            balance -= amount;
        } else {
            System.out.println("余额不足");
        }
    }

    // 查询余额
    public double getBalance() {
        return balance;
    }

    // 销户
    public void closeAccount() {
        accountNumber = null;
        accountHolderName = null;
        openingDate = null;
        idNumber = null;
        balance = 0.0;
    }
}