import java.util.*;int year, month, data // 用户输入的生日值Calendar c = new Calendar();
c.set(year, month, date);
Date birthday = c.getTime();
System.out.println(birthday);
c.set(year, month, date);
Date birthday = c.getTime();
System.out.println(birthday);
Date dt = new SimpleDateFormat("yyyy-MM-dd").parse("2005-03-26");