So far I have put the text file into a list array and have been able to search for the current day. But I cannot find a way to get a time range out of the text file.
Text File
Jack Johnson
Thursday 07:00 17:45,
Is there any way to get these time values out of the text file and compare the current time to check if it falls between these 2 time values. I have already got the current time but I just cannot figure out how to get these 2 time values out of the text file
Boolean isAvail = false;
Date day = new Date();
SimpleDateFormat simpleDateformat = new SimpleDateFormat("EEEE");
String token1 = "";
Scanner inFile1 = new Scanner(new File("E:\\Folder\\text.txt")).useDelimiter(",\\s*");
List<String> availability = new ArrayList<String>();
while (inFile1.hasNext())
{
token1 = inFile1.next();
availability.add(token1);
}
inFile1.close();
String[] availabilityArray = availability.toArray(new String[0]);
String searchArray = simpleDateformat.format(day);
for (String curVal : availabilityArray)
{
if (curVal.contains(searchArray))
{
System.out.println(curVal);
}
}
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("HH:mm");
LocalDateTime now = LocalDateTime.now();
System.out.println(dtf.format(now));
If you can snatch the string then you can use LocalTime.parse().
// Say you got that from the file
String timeStart = "07:00";
String timeEnd = "17:45";
// Then
LocalTime start = LocalTime.parse(timeStart);
LocalTime stop = LocalTime.parse(timeEnd);
LocalTime now = LocalTime.now();
if (now.isAfter(start) && now.isBefore(stop)) {
// whatnot
}
You can use the old functions, that can parse maintaining a running position:
String input = "Thursday 07:00 17:45,";
SimpleDateFormat weekdayFormat = new SimpleDateFormat("EEEE", Locale.US);
ParsePosition pos = new ParsePosition(0);
Date wd = weekdayFormat.parse(input, pos);
System.out.println("wd " + wd);
SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm", Locale.US);
Date from = timeFormat.parse(input, pos);
Date to = timeFormat.parse(input, pos);
System.out.println("" + from + " - " + to);
The result being a bit of unused fields.
wd Thu Jan 01 00:00:00 CET 1970
Thu Jan 01 07:00:00 CET 1970 - Thu Jan 01 17:45:00 CET 1970
With Date.toInstant()
or whatever one can convert them to new time types, like LocalTime.
New time API:
String input = "Thursday 07:00 17:45,";
DateTimeFormatter weekdayFormat = DateTimeFormatter.ofPattern("EEEE", Locale.US);
ParsePosition pos = new ParsePosition(0);
TemporalAccessor wd = weekdayFormat.parse(input, pos);
System.out.println("wd " + wd);
DateTimeFormatter timeFormat = DateTimeFormatter.ofPattern(" HH:mm", Locale.US);
TemporalAccessor from = timeFormat.parse(input, pos);
TemporalAccessor to = timeFormat.parse(input, pos);
System.out.println("" + from + " - " + to);
Giving
wd {DayOfWeek=4},ISO
{},ISO resolved to 07:00 - {},ISO resolved to 17:45
Using Java 8, you can use the LocalTime
class for the times and extract the time values from the file using regex
. For example using the string you provided as input you can do this:
String stringWithTime = "Jack Johnson Thursday 07:00 17:45,";
Pattern p = Pattern.compile("(\\d{2}:\\d{2})\\s(\\d{2}:\\d{2})");
Matcher m = p.matcher(stringWithTime);
while(m.find()) {
LocalTime firstTime = LocalTime.parse(m.group(1));
LocalTime secondTime = LocalTime.parse(m.group(2));
LocalTime nowTime = LocalTime.now();
boolean isBetween = firstTime.isBefore(nowTime) && secondTime.isAfter(nowTime);
}
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