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EduBw
Asked: 2020-01-07 23:53:34 +0800 CST 2020-01-07 23:53:34 +0800 CST

Compare Dates in Java java.text.ParseException: Unparseable date

  • 772

I have an array of objects that come from the database, I have to keep the object whose date is the highest, that is, the last one that was inserted.

2018-10-09 10:11:50
2018-11-01 13:11:22
2018-11-01 14:20:10 --> esta

private ThirdValidation maxRegister(List<ThirdValidation> process) {
    ThirdValidation tv = null, maxTv = null;
    String strDateFormat = "aaaa-MM-dd hh:mm:ss"; // Formato de la fecha  
    SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
    try {
        // se comprueba el obj con la fecha más alta.
        for (int i = 0; i < process.size(); i++) {
            tv = process.get(i);
            if(maxTv == null) {
                maxTv = tv;
            } else {
                Date max = sdf.parse(maxTv.getRegistroModif());
                Date current = sdf.parse(tv.getRegistroModif());
                // El max es menor que el actual
                if(max.compareTo(current) == 0) {
                    maxTv = tv;
                }
            }
        }
    } catch (Exception e) {
        LOGGER.warn("******************");
        LOGGER.warn("ERROR maxRegister()");
        e.printStackTrace();
        LOGGER.warn("******************");
    }
    return maxTv;
}

It gives an error when it tries to do: maxTv.getRegistroModif(), I have verified that it has data and they are 2018-10-09 10:11:50, the error is: java.text.ParseException: Unparseable date but previously I already specified the format: String strDateFormat = "aaaa-MM-dd hh:mm:ss";// Date format . Thank you!

java

1 Answers

  1. Best Answer

    Simply changing:

    String strDateFormat = "aaaa-MM-dd hh:mm:ss"; // Formato de la fecha

    For the following:

    String strDateFormat = "yyyy-MM-dd HH:mm:ss"; // Formato de la fecha

    It should work. Also add that if what you want is to know if it is greater, in the conditional change the ==by <.

    if(max.compareTo(current) < 0) {
    maxTv = tv;
}
    • 5