import java.sql.Timestamp;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
public class TestDateAndTime {
public static void main(String[] args) {
// (1) 拿到当前系统时间
System.out.println(System.currentTimeMillis()); // 19700101 到 现在过了多少毫秒
Date d = new Date();
Calendar c = Calendar.getInstance();
// (2) 字符串到日期
String s = "1970-12-30 08:24:37.0";
Timestamp ts = Timestamp.valueOf(s);
System.out.println(ts);
// (3) 拿到日本时间
Calendar cJapan = new GregorianCalendar(TimeZone.getTimeZone("Japan"));
System.out.println(cJapan.get(Calendar.HOUR_OF_DAY));
System.out.println(cJapan.get(Calendar.MINUTE));
for (String str : TimeZone.getAvailableIDs()) {
System.out.println(str);
}
}
}