我可以帮忙翻译这个问题,内容与IT技术有关。您想要读取一个txt文件并将其内容放入ArrayList中,格式如下:
name Yoshida Shuhei
birthday 8-04-1961
phone 0123456789
email abc@123.com
medicalHistory None
address 12 X Street, Suburb,
NSW, Australia
address 13 Y Street, Suburb, VIC, Australia
name Kazuo Hirai
medicalHistory None
email xyz@123.com
phone 0987654321
birthday 26-11-1972
该文件包含多个病人的记录,每个病人的记录块内的记录可能以任何顺序出现(例如,第一个病人的姓名在前面,但第二个病人的地址在前面),所有记录之间用空行分隔。
我的想法是,如果当前行不是空行,则开始读取病人记录并将其添加到病人对象中,以下是我的代码:
public static ArrayList<Patient> getData(String fileName) {
try {
File file = new File(fileName);
Scanner reader = new Scanner(file);
ArrayList<Patient> recordList = new ArrayList<Patient>();
ArrayList<MedicalHistory> mhList = new ArrayList<MedicalHistory>();
int index = -1;
int mh_index = -1;
String s;
Patient p = null;
MedicalHistory mh = null;
boolean addressActive = false;
boolean mhActive = false;
while (reader.hasNext()) {
s = reader.nextLine();
Scanner line = new Scanner(s);
String cmd;
if (!s.trim().isEmpty()) {
cmd = line.next();
if (cmd.equalsIgnoreCase("name")) {
index++;
p = new Patient();
p.setName(line.nextLine());
recordList.add(index, p);
addressActive = false;
mhActive = false;
} else if (cmd.equalsIgnoreCase("address")) {
if (line.hasNext()) {
p.setAddress(line.nextLine().trim());
recordList.set(index, p);
}
addressActive = true;
mhActive = false;
} else if (cmd.equalsIgnoreCase("birthday")) {
p.setBirthday(line.nextLine());
recordList.set(index, p);
addressActive = false;
mhActive = false;
} else if (cmd.equalsIgnoreCase("email")) {
if (line.hasNext()) {
p.setEmail(line.nextLine());
recordList.set(index, p);
}
addressActive = false;
mhActive = false;
} else if (cmd.equalsIgnoreCase("phone")) {
if (line.hasNextInt()) {
p.setPhone(line.nextInt());
recordList.set(index, p);
}
addressActive = false;
mhActive = false;
} else if (cmd.equalsIgnoreCase("medicalHistory")) {
mh = new MedicalHistory();
//...parse the medicalHistory
addressActive = false;
mhActive = true;
} else if (addressActive) {
String address = p.getAddress() + " " + s.trim();
p.setAddress(address);
recordList.set(index, p);
} else if (mhActive) {
//to deal with multiple medical histories
} else
System.out.println("Error: no command:" + s);
}
}
reader.close();
return recordList;
} catch (Exception e) {
System.out.println("Error:- " + e.getMessage());
return null;
}
}
问题在于,我的代码只能处理姓名排在第一位的情况;如果第一个非空行以其他命令开头(例如以地址开头),则不会为其初始化新患者(new Patient()),程序将会出错……
那么我应该把p = new Patient()放在哪里,才能让程序无论命令顺序如何都能读取病人记录,并将数据存储在一个Patient对象中呢?
有谁能够改进我的代码并满足这个条件吗?非常感谢!