只是在我的java任務上工作,我碰到了一堵磚牆,我似乎找不到解決方案 - 我不一定在尋找答案,甚至一些想法,以什麼工具可以幫助我:)無論如何這裏去:如何在ArrayList中的對象內創建日曆對象
正如標題所說,我正在尋找在Arraylist內的對象內創建一個日曆對象。基本上,按照下面的代碼 - 我認爲,當約會對象的實例創建時,日曆對象和約會對象之間的鏈接將被切斷,我可以重複使用日曆對象的下一個約會對象。不幸的是,每個對象都保留對日曆對象的引用,而不是創建自己的日曆對象實例= /。
上工作的一些背景:
基本上這一塊的Java代碼,掃描文件,並提取出的信息的話,可以確保其有效的,那麼的一個內創建相應對象的實例兩個陣列表。我在我的導師的約束下工作,他指定我必須使用數組列表。任何幫助將不勝感激。
的委任類的構造函數: 公共預約(患者的患者,提供供應商,GregorianCalendar的日期,布爾標準,布爾出席)
實例約會數據 任命#84736254193#123456AF#22.30# 2012年12月20日#false#真
public AppointmentsManager (String path) {
this.path = path;
String[] fileLine;
boolean throwError = false;
DateFormat df = new SimpleDateFormat ("HH.mm dd/MM/yyyy");
df.setLenient(false);
GregorianCalendar calendar = new GregorianCalendar();
try {
Scanner input = new Scanner(new File(path));
String line;
while (input.hasNext()) {
line = input.nextLine();
fileLine = line.split("#");
if (fileLine.length < 0)
throw new IllegalArgumentException("Error: the data in the file is has not been delimited correctly. Please review");
if (fileLine[0].matches("Provider")) {
if (fileLine.length < 7)
throw new IllegalArgumentException("Error: the provider data in the file is incomplete. Please review");
persons.add(new Provider(fileLine[1], fileLine[2], fileLine[3], fileLine[4], fileLine[5],
fileLine[6]));
}
else if (fileLine[0].matches("Patient")) {
fileLine = line.split("#");
if (fileLine.length < 11)
throw new IllegalArgumentException("Error: the patient data in the file is incomplete. Please review");
for (int i = 0; i < persons.size(); i++) {
if (persons.get(i).getMedicare().matches(fileLine[10])) {
persons.add(new Patient(fileLine[1], fileLine[2], fileLine[3], fileLine[4], fileLine[5],
fileLine[6], fileLine[7], fileLine[8], Integer.parseInt(fileLine[9]),(Provider)persons.get(i)));
throwError = true;
}
}
if (throwError!=true) {
throw new IllegalArgumentException("Error: the provided Provider does not exist for Patient: " + fileLine[2]+", "+fileLine[1] +". Please review");
}
}
else if (fileLine[0].matches("Appointment")) {
fileLine = line.split("#");
if (fileLine.length < 7)
throw new IllegalArgumentException("Error: the appointment data in the file is incomplete. Please review");
if (!"true".equals(fileLine[5].toLowerCase()) && !"false".equals(fileLine[5].toLowerCase()))
throw new IllegalArgumentException("Error: the appointment data in the file is incorrect. Please review");
if (!"true".equals(fileLine[6].toLowerCase()) && !"false".equals(fileLine[6].toLowerCase()))
throw new IllegalArgumentException("Error: the appointment data in the file is incorrect. Please review");
//parse the fileLine parameters
calendar.setTime(df.parse(fileLine[3] + " " + fileLine[4]));
for (int i = 0; i < persons.size(); i++) {
if (persons.get(i).getMedicare().matches(fileLine[1])) {
for (int j = 0; j < persons.size(); j++) {
if (persons.get(j).getMedicare().matches(fileLine[2])) {
appointments.add(new Appointment((Patient) persons.get(i), (Provider) persons.get(j), calendar,
Boolean.parseBoolean(fileLine[5]), Boolean.parseBoolean(fileLine[6])));
throwError = true;
}
}
}
}
if (throwError!=true) {
throw new IllegalArgumentException("Error: the provided Provider or Patient does not exist in the system. Please review");
}
}
else
throw new IllegalArgumentException("Error: the data provided does not match a person, provider or appointment. Please review");
}
input.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ParseException pe) {
// TODO Auto-generated catch block
throw new IllegalArgumentException("Error: the appointment date and time in the file is incorrect. Please review");
}
}
這樣一個簡單的修復 - 謝謝。我仍然想方設法操縱如何引用和創建對象。 – Fallz 2012-04-10 10:30:20
不客氣,祝你好運 – 2012-04-10 10:35:03