package top.qaqaq.java.P236;
public class Account {
private int id;//账号
private double balance;//余额
private double annuallnterestRate;//年利率
public Account(int id, double balance, double annuallnterestRate) {
this.id = id;
this.balance = balance;
this.annuallnterestRate = annuallnterestRate;
}
public int getId() {
return id;
}
public double getBalance() {
return balance;
}
public double getAnnuallnterestRate() {
return annuallnterestRate;
}
public void setId(int id) {
this.id = id;
}
public void setBalance(double balance) {
this.balance = balance;
}
public void setAnnuallnterestRate(double annuallnterestRate) {
this.annuallnterestRate = annuallnterestRate;
}
//在提款方法withdraw中，需要判断用户余额是否能够满足提款数额的要求，如果不能，应给出提示。
public void withdraw(double amount) { //取钱
if(balance < amount) {
System.out.println("余额不足，取款失败");
return;
}
balance -= amount;
System.out.println("成功取出：" + amount);
}
public void deposit(double amount) { //存钱
if(amount > 0) {
balance += amount;
System.out.println("成功存入：" + amount);
}
}
}
package top.qaqaq.java.P236;
public class Customer {
private String firstName;
private String lastName;
private Account account;
public Customer(String f,String l) {
this.firstName = f;
this.lastName = l;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public Account getAccount() {
return account;
}
public void setAccount(Account account) {
this.account = account;
}
}
package top.qaqaq.java.P236;
/*
* 写一个测试程序。
（1）创建一个Customer，名字叫Jane Smith,
他有一个账号为1000，余额为2000元，年利率为1.23％的账户。
（2）对Jane Smith操作。
存入100元，再取出960元。再取出2000元。
打印出Jane Smith的基本信息
成功存入：100.0
成功取出：960.0
余额不足，取款失败
Customer [Smith, Jane] has a account: id is 1000, annualInterestRate is 1.23％, balance is 1140.0
*
*
*/
public class CustomerTest {
public static void main(String[] args) {
Customer cust = new Customer("Jane", "Smith");
Account acct = new Account(1000, 2000, 0.0123);
cust.setAccount(acct);
cust.getAccount().deposit(100);
cust.getAccount().withdraw(960);
cust.getAccount().withdraw(2000);
System.out.println("Customer[" + cust.getLastName() + "," + cust.getFirstName() +
"] has a account: id is " + cust.getAccount().getId() + "," + "annualInterestRate is " +
cust.getAccount().getAnnuallnterestRate() * 100 + "%,balance is " + cust.getAccount().getBalance());
}
}