java/BankAccount.java

public class BankAccount {
    private String accountNumber;
    private String ownerName;
    private double balance;
    public BankAccount(String accountNumber, String ownerName, double balance){
        this.accountNumber = accountNumber;
        this.ownerName = ownerName;
        this.balance=0.0;
    }
    public void deposit(double amount){
        if (  amount >0.0){
            this.balance+=amount;
            System.out.printf("存款成功，余额为：%f\n",this.balance);
        } else{
            System.out.println("存款失败，金额必须大于0.0\n");
        }
    }
    public void withdraw (double amount){
        if (amount>0.0 &&amount<this.balance){
            this.balance-=amount;
            System.out.printf("取款成功，余额为：%f\n",this.balance);
        } else{
            System.out.println("取款失败，金额必须大于0.0且小于余额\n");
        }
        }
        public double getbalance(){
           return balance;
        }
        public String getAccountNumber(){
           return accountNumber;
        }
        public String getOwnerName(){
           return ownerName;
        }
        public void setAccountNumber(String accountNumber){
           this.accountNumber = accountNumber;
        }



    }