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  1. public class DVD {
  2.     int rent_days;//預計出租天數
  3. 	String title;//dvd片名
  4. 	int charge_rate;//dvd每天租金
  5. 	static int fine_rate;//逾期後每天罰金
  6.  
  7.   DVD (String title, int charge_rate){
  8.       this.title=title;
  9. 	  this.charge_rate=charge_rate;
  10.   }
  11.  
  12.   void setFineRate(int rate){
  13.       this.fine_rate=fine_rate;
  14.   }
  15.  
  16.   void rent(int rdays){//最多能租天數
  17.       rent_days=rdays;
  18.   }
  19.  
  20.   int giveback(int gdays){//實際出租天數
  21.       int pay;//應付金額
  22. 	  if(gdays>rent_days)//假如逾期要付的金額
  23. 	  {
  24. 	      pay=rent_days*charge_rate+(gdays-rent_days)*fine_rate;
  25. 	  }
  26. 	  else//假如沒逾期
  27. 	  {
  28. 	      pay=gdays*charge_rate;
  29. 	  }
  30. 	  return pay;
  31.   }
  32.  
  33.   String getTitle(){//回傳片名
  34.       return title;
  35.   }
  36.  
  37.   public static void main (String args[ ]){
  38.       /*ABC租1天30，最高可租5天
  39.       DEF租1天50，最高可租3天
  40.       每部dvd逾期後每天罰70元
  41.       今天我ABC租了4天
  42.       DEF租了6天
  43.       要計算出每部的金額與總金額
  44.       */
  45. 	  DVD dvd1=new DVD("ABC",30);
  46. 	  DVD dvd2=new DVD("DEF",50);
  47. 	  dvd1.setFineRate(70);
  48. 	  dvd2.setFineRate(70);
  49. 	  dvd1.rent(5);
  50. 	  dvd2.rent(3);
  51. 	  int money1,money2,total;
  52. 	  money1=dvd1.giveback(4);
  53. 	  money2=dvd2.giveback(6);
  54. 	  total=money1+money2;
  55. 	  System.out.println(dvd1 +":"+ money1 +"\n"+
  56. 	                      dvd2 +":"+ money2 +"\n"+
  57. 	                      "Total:"+ total);
  58.   }
  59.  }
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:1: class DVD is public, should be declared in a file named DVD.java
public class DVD {
       ^
1 error
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Standard output is empty
https://ideone.com/vbTwIZ
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
secret

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