Java語言程序設計（基礎篇）第十版 9.7

package adsads;
//import java.util.Arrays;
import java.util.Date;
//import java.util.Random;

public class adfsa
{ public static void main(String[] args)
{
Account h1=new Account(1122,20000,4.5);
h1.withDraw(2500);
h1.deposit(3000);
System.out.println("The balance is"+h1.getbalance()+"and monthlyInterestRate is"+h1.getMonthlyInterestRate()+"and its id is"+h1.getid()+"its starttime is"+h1.getdataCreated().toString());
}
}
class Account{
private int id=0;
private double balance=0;
private double annualInterestRate=0;
private Date dataCreated;
public Account(){

}
public Account(int id,int balance,double annualInterestRate)
{
this.id=id;
this.balance=balance;
this.annualInterestRate=annualInterestRate/100;
this.dataCreated=new Date();
}
public int getid()
{
return id;
}
public void setid(int id){
this.id=id;
}
public double getbalance(){
return balance;
}
public void setbalance(double balance){
this.balance=balance;
}
public double getannualInterestRate(){
return annualInterestRate;
}
public void setannualInterestRate(double annualInterestRate){
this.annualInterestRate=annualInterestRate/100;
}
public Date getdataCreated(){
return dataCreated;
}
public double getMonthlyInterestRate(){
return balance*(annualInterestRate/12);
}
public void withDraw(double sum){
if(sum>balance)
System.out.println("Your Money is not enough ");
else
this.balance=balance-sum;
}
public void deposit(double sum){
this.balance=balance+sum;
}
}