SimpleDateFormat parse(string str) doesn't throw an exception when str = 2011/12/12aaaaaaaaa?

Question

Here is an example:

public MyDate() throws ParseException {
    SimpleDateFormat sdf = new SimpleDateFormat(\"yyyy/MM/d\");
    sdf.setLenient(false);
    St         


        

Answer 1

Take a look on the method documentation which says: ParseException if the beginning of the specified string cannot be parsed.

Method source code with javadoc:

/**
 * Parses text from the beginning of the given string to produce a date.
 * The method may not use the entire text of the given string.
 * 

 * See the {@link #parse(String, ParsePosition)} method for more information
 * on date parsing.
 *
 * @param source A String whose beginning should be parsed.
 * @return A Date parsed from the string.
 * @exception ParseException if the beginning of the specified string
 *            cannot be parsed.
 */
public Date parse(String source) throws ParseException
{
    ParsePosition pos = new ParsePosition(0);
    Date result = parse(source, pos);
    if (pos.index == 0)
        throw new ParseException("Unparseable date: \"" + source + "\"" ,
            pos.errorIndex);
    return result;
}