Java: Unable to obtain LocalDate from TemporalAccessor -

i trying change format of string date eeee mmmm d mm/d/yyyy by, first, converting localdate , applying formatter of different pattern localdate before parsing string again.

here's code:

private string convertdate(string stringdate)  {     //from eeee mmmm d -> mm/dd/yyyy      datetimeformatter formatter = new datetimeformatterbuilder()             .parsecaseinsensitive()             .append(datetimeformatter.ofpattern("eeee mmmm d"))             .toformatter();      localdate parseddate = localdate.parse(stringdate, formatter);     datetimeformatter formatter2 = datetimeformatter.ofpattern("mm/d/yyyy");      string formattedstringdate = parseddate.format(formatter2);      return formattedstringdate; } 

however, exception message don't understand:

exception in thread "main" java.time.format.datetimeparseexception: text 'tuesday july 25' not parsed: unable obtain localdate temporalaccessor: {dayofweek=2, monthofyear=7, dayofmonth=25},iso of type java.time.format.parsed     @ java.time.format.datetimeformatter.createerror(datetimeformatter.java:1920) 

as other answers said, create localdate need year, not in input string. has day, month , day of week.

to full localdate, need parse day , month , find year in day/month combination matches day of week.

of course ignore day of week , assume date in current year; in case, other answers provided solution. if want find year matches day of week, must loop until find it.

i'm creating formatter java.util.locale, make explicit want month , day of week names in english. if don't specify locale, uses system's default, , it's not guaranteed english (and can changed without notice, @ runtime).

datetimeformatter formatter = new datetimeformatterbuilder()     .parsecaseinsensitive()     .append(datetimeformatter.ofpattern("eeee mmmm d"))     // use english locale correctly parse month , day of week     .toformatter(locale.english); // parse input temporalaccessor parsed = formatter.parse("tuesday july 25"); // month , day monthday md = monthday.from(parsed); // day of week dayofweek dow = dayofweek.from(parsed); localdate date; // start arbitrary year, stop @ arbitrary value for(int year = 2017; year > 1970; year--) {     // day , month @ year     date = md.atyear(year);     // check if day of week same     if (date.getdayofweek() == dow) {         // found: 'date' correct localdate         break;     } } 

in example, started @ year 2017 , tried find date until 1970, can adapt values fits use cases.

you can current year (instead of fixed arbitrary value) using year.now().getvalue().