答答租车，新人小白求大神指点还有没有需要改进的地方

Question

1. package rent;

2. import java.util.Scanner;

3. public class Test {

4. 
   

5. public static void main(String[] args) {

6. // TODO Auto-generated method stub

7. Car[] carforrent=new Car[]{new Bus("奥迪A4",500,0,4),new Bus("马自达6",400,0,4),new Pickup("皮卡雪6",450,2,4),

8. new Bus("金龙",800,0,20),new Truck("松花江",400,4,0),new Truck("依维柯",1000,20,0)};

9. System.out.println("欢迎使用答答租车系统：");

10. System.out.println("您是否要租车：1是   0否");

11. Scanner input=new Scanner(System.in);

12. int choice=input.nextInt();

13. if(choice==1){

14. System.out.println("您可租车的类型以及价目表：");

15. System.out.println("序号\t汽车名称\t租金\t\t容量");

16. for(int i=0;i<carforrent.length;i++){

17. System.out.print((i+1)+"\t"+carforrent[i].getName()+"\t"+carforrent[i].getRent()+"元/天\t");

18. if(carforrent[i].getBusload()!=0)

19. System.out.print("载人："+carforrent[i].getBusload()+"人  ");

20. if(carforrent[i].getBurden()!=0)

21. System.out.print("载货："+carforrent[i].getBurden()+"吨");

22. System.out.println();

23. }

24. System.out.println("请输入您要租用汽车的数量：");

25. Scanner input1=new Scanner(System.in);

26. int num=input1.nextInt();

27. int [] carID=new int[num];

28. for(int i=0;i<num;i++){

29. int j=i+1;

30. System.out.println("请输入第"+j+"辆车的序号：");

31. Scanner input2=new Scanner(System.in);

32. carID[i]=input2.nextInt();

33. }

34. System.out.println("请输入租车天数：");

35. Scanner input3=new Scanner(System.in);

36. int days=input3.nextInt();

37. System.out.println("您的账单：");

38. int sumofbusload=0;

39. int sumofburden=0;

40. double rents=0;

41. System.out.println("***可载人的车有：");

42. for(int i=0;i<num;i++){

43. if(carID[i]==1){

44. System.out.print(carforrent[0].getName()+"  ");

45. sumofbusload+=carforrent[0].getBusload();

46. rents+=carforrent[0].getRent();

47. }

48. else if(carID[i]==2){

49. System.out.print(carforrent[1].getName()+"  ");

50. sumofbusload+=carforrent[1].getBusload();

51. rents+=carforrent[1].getRent();

52. }

53. else if(carID[i]==3){

54. System.out.print(carforrent[2].getName()+"  ");

55. sumofbusload+=carforrent[2].getBusload();

56. rents+=carforrent[2].getRent();

57. }

58. else if(carID[i]==4){

59. System.out.print(carforrent[3].getName()+"  ");

60. sumofbusload+=carforrent[3].getBusload();

61. rents+=carforrent[3].getRent();

62. }

63. else continue;

64. }

65. System.out.println("共载人："+sumofbusload+"人");

66. System.out.println("***可载货的车有：");

67. for(int i=0;i<num;i++){

68. if(carID[i]==3){

69. System.out.print(carforrent[2].getName()+"  ");

70. sumofburden+=carforrent[2].getBurden();

71. }

72. else if(carID[i]==5){

73. System.out.print(carforrent[4].getName()+"  ");

74. sumofburden+=carforrent[4].getBurden();

75. rents+=carforrent[4].getRent();

76. }

77. else if(carID[i]==6){

78. System.out.print(carforrent[5].getName()+"  ");

79. sumofburden+=carforrent[5].getBurden();

80. rents+=carforrent[5].getRent();

81. }

82. else continue;

83. }

84. System.out.println("共载货："+sumofburden+"吨");

85. System.out.println("***租车总价格："+rents*days);

86. }

87. else

88. System.out.println("正退出答答租车系统");

Answer 1

你这套系统要实现什么，哪些实现不了，这样才好让大家解答