小鱼宝宝 - 云代码空间
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| t java.util.*; |
| public class UserInterface |
| { |
| public static void main(String args[]){ |
| Cards card0 = new Cards(); |
| Cards card1 =new SavingsCard(); |
| Cards card2 =new CreditCard(); |
| int k=-1; |
| Scanner scan = new Scanner(System.in); |
| Scanner scan0 = new Scanner(System.in); |
| Scanner scan1 = new Scanner(System.in); |
| Scanner scan2 = new Scanner(System.in); |
| do{ |
| System.out.println("银行卡管理系统"); |
| System.out.println("1.开卡"); |
| System.out.println("2.存款"); |
| System.out.println("3.取款"); |
| System.out.println("4.查询余额"); |
| System.out.println("0.退出系统"); |
| System.out.println("请输入:"); |
| k = scan.nextInt(); |
| switch(k){ |
| case(1):{ |
| System.out.println("请输入开卡类型:\n1.储蓄卡\n2.信用卡"); |
| int j; |
| j = scan0.nextInt(); |
| switch(j){ |
| case(1):{ |
| card0 = card1; |
| System.out.println("您已开通储蓄卡！"); |
| break; |
| } |
| case(2):{ |
| card0 = card2; |
| System.out.println("您已开通信用卡！"); |
| break; |
| } |
| default:{ |
| System.out.println("非法输入。"); |
| break; |
| } |
| } |
| break; |
| } |
| case(2):{ |
| System.out.println("请输入存款金额:"); |
| card0.saveMoney(scan1.nextDouble()); |
| break; |
| } |
| case(3):{ |
| System.out.println("请输入取款金额:"); |
| card0.takeMoney(scan2.nextDouble()); |
| break; |
| } |
| case(4):{ |
| System.out.println("账户余额为:"+card0.getBalance()); |
| break; |
| } |
| case(0):{ |
| break; |
| } |
| default:{ |
| System.out.println("非法输入。"); |
| } |
| } |
| }while(k!=0); |