Re: Comparing time

From:

"John B. Matthews" <nospam@nospam.invalid>

Newsgroups:

comp.lang.java.help

Date:

Mon, 11 Aug 2008 11:29:16 -0400

Message-ID:

<nospam-77EDA9.11291611082008@aioe.org>

In article
<bac1d16f-1473-429b-9d81-358184f02b55@t54g2000hsg.googlegroups.com>,
mike <mikaelpetterson@hotmail.com> wrote:
[...]

How can I compare time without using any date information?

You can't; you have specified that myMethod() uses a Date. I assume you
meant java.util.Date. Use before(), after(), equals() or compareTo().
You may need to specify a TimeZone and Locale in getInstance().

For example,

public boolean myMethod (Date date) {

    Calendar myDate = Calendar.getInstance();
    myDate.setTime(date);

    Calendar time1 = (Calendar) myDate.clone();
    time1.set(Calendar.HOUR_OF_DAY, 7);
    time1.set(Calendar.MINUTE, 59);
    time1.set(Calendar.SECOND, 59);
    time1.set(Calendar.MILLISECOND, 999);

    Calendar time2 = (Calendar) myDate.clone();
    time2.set(Calendar.HOUR_OF_DAY, 17);
    time2.set(Calendar.MINUTE, 0);
    time2.set(Calendar.SECOND, 0);
    time2.set(Calendar.MILLISECOND, 1);

    return (myDate.after(time1) && myDate.before(time2));

}

[not tested]

--
John B. Matthews
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