Calendar与Date、long的转换：
Calendar ca = Calendar.getInstance();
Date d = ca.getTime();
long l = ca.getTimeInMillis();
ca.setTime(d);
ca.setTimeInMillis(l);
Date和long间的转换：
Date d = new Date();
long l = d.getTime();
d.setTime(l);
d = new Date(l);
posted on 2006-08-02 09:10
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