package banking1;

public class Account {
private double balance;//賬號(hào)余額
public Account(double init_balance){
balance=init_balance;
}
public double getBalance(){
return balance;
}
public void despoit(double amt){
balance+=amt;
}
public void withdraw(double amt){
if(balance>amt){
balance-=amt;
}else{
System.out.println("賬戶余額不足");
}
}
}

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package testbanking1;
import banking1.Account;

public class testbanking1 {
public static void main(String[] args){
Account account;
account =new Account(500.00);
System.out.println("creating an account with a 500.00 balance ");
account.withdraw(150.00);//調(diào)用withdraw
System.out.println("withdraw 150.00");
account.despoit(22.50);
System.out.println("despoit 150.00");
account.withdraw(47.62);
System.out.println("withdraw 47.62");
System.out.println("the account has a balance of :"+account.getBalance());
}
}

轉(zhuǎn)載于:https://www.cnblogs.com/alhh/p/5342525.html

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