银行代码

package fzzy3;

public class Account {
private int id;
private double balance;
private double annualInterestRate;
public Account (int id, double balance, double annualInterestRate ){
this.id=id;
this.balance=balance;
this.annualInterestRate=annualInterestRate;
}
public int getId(){
return id;
}
public double getBalance(){
return balance;
}
public double getAnnualInterestRate(){
return annualInterestRate;
}
public void setId( int id){
this.id=id;
}
public void setBalance(double balance){
this.balance=balance;
}
public void setAnnualInterestRate(double annualInterestRate){
this.annualInterestRate=annualInterestRate;
}
public void withdraw (double amount){
if(balance>=amount){
balance-=amount;
System.out.println(“成功取出：”+balance);
}else{
System.out.println(“余额不足”);

    }
}
public void deposit (double amount){
    balance+=amount;
    System.out.println("成功存入："+balance);
}

}

package fzzy3;

public class Customer {
private String firstName;
private String lastName;
private Account account;
public Customer(String i,String l){
this.firstName=i;
this.lastName=l;
}
public String getFirstName(){
return firstName;
}
public String getLastName(){
return lastName;
}
public Account getAccount(){

    return account;
}
public void setAccount(Account a){
    account=a;




}

}

package fzzy3;

public class Text {

public static void main(String[] args) {
    Customer c=new Customer("Jane","Smith");
    System.out.println();
    c.setAccount(new Account(1000,2000,0.00123));
    Account a=c.getAccount();
    a.deposit(100);
    a.withdraw(960);
    a.withdraw(2000);
    System.out.println("id:"+a.getId()+"余额"+a.getBalance()+"年利率"+a.getAnnualInterestRate());
    System.out.println("Customer ["+c.getFirstName()+c.getLastName()+"] has a account: id is "+a.getId()+", annualInterestRate is"+a.getAnnualInterestRate()+", balance is "+a.getBalance());

}
}