java date parser.java

import java.time.temporal.TemporalAccessor
import java.text.ParsePosition;
import java.time.format.DateTimeFormatter;

TemporalAccessor myParseDate(String str,Collection<DateTimeFormatter> formatters) throws java.time.format.DateTimeParseException{

for(DateTimeFormatter formatter : formatters){
    int parsePosition=0;
    while(parsePosition<str.length()){
        try{
            TemporalAccessor ta = formatter.parse(str, new ParsePosition(parsePosition));
            return ta;
        }
        catch(java.time.format.DateTimeParseException e){
            parsePosition++;
        }
    }
        
    }

    throw new java.time.format.DateTimeParseException("failed to parse date entirely",str,0);
}


Collection<DateTimeFormatter>  formatters=new ArrayList<>();
formatters.add(DateTimeFormatter.ofPattern("MMM dd, y",java.util.Locale.ENGLISH));
formatters.add(DateTimeFormatter.ofPattern("dd/MM/y",java.util.Locale.FRENCH));

for(String testString : new String[]{"toto May 15, 2015 aarg","je suis allé à  l'école le 12/10/2001"}){
TemporalAccessor ta = myParseDate(testString,formatters);
System.out.println(ta);
}