java/w3/BankAccount.java

public class BankAccount {
    private String accountNumber ;
    private double balance ;
    public String ownerName ;

    public BankAccount (String accountNumber , String ownerName) {
        this.accountName = accountName ;
        this.ownerName = ownerName ;
        this.balance = 0.0 ; 
    } 
   
    public void ck(double money) {
        if (money > 0) {
            balance += money
            System.out.println("存款成功，当前余额："+balance);
        }else{
            System.out.println("存款失败，存款金额必须大于0");
        }
    }
    public void qk(double money){
        if (money <0){
            System.out.println("取款失败，取款金额必须大于0");
        }else if (money >balance){
            System.out.println("取款失败，余额不足，当前余额："+balance);
        }else () {
            balance -= money
            System.out.println("取款成功，当前余额："+balance);
        }
    }

    public double getBalance() {return balance;
    }

    public String getAccountNumber() {
        return accountNumber;
    }

    public String getOwnerName() {
        return ownerName;
    }

    public void setOwnerName(String ownerName) {
        this.ownerName = ownerName;
    }
}