[英]SWT DateTime - read date and time from two widgets
Imagine two widgets: 想象两个小部件:
DateTime dtDate = new DateTime(parent, SWT.BORDER);
and 和
DateTime dtTime = new DateTime(parent, SWT.BORDER | SWT.TIME);
Would would be the most efficient way to read date and time from the two widgets into a single Date variable? 将两个小部件中的日期和时间读入单个Date变量将是最有效的方法吗?
Edit : The following solution that I have in mind is far from being elegant. 编辑 :我想到的以下解决方案远非优雅。 I hope that there is a better way to do this. 我希望有更好的方法可以做到这一点。
final DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
// year
dateString += String.valueOf(dtDate .getYear());
dateString += "-";
// month
dateString += String.valueOf(dtDate .getMonth());
dateString += "-";
// day
dateString += String.valueOf(dtDate .getDay());
dateString += " ";
// hour
dateString += String.valueOf(dtTime.getHours());
dateString += ":";
// minute
dateString += String.valueOf(dtTime.getMinutes());
dateString += ":";
// second
dateString += String.valueOf(dtTime.getSeconds());
try {
Date startDate = (Date) dateFormat.parse(dateString);
} catch (ParseException exception) {
exception.printStackTrace();
}
The JFace data binding uses Calendar
: JFace数据绑定使用Calendar
:
Calendar cal = Calendar.getInstance();
cal.clear();
cal.set(Calendar.YEAR, dtDate.getYear());
cal.set(Calendar.MONTH, dtDate.getMonth());
cal.set(Calendar.DAY_OF_MONTH, dtDate.getDay());
cal.set(Calendar.HOUR_OF_DAY, dtTime.getHours());
cal.set(Calendar.MINUTE, dtTime.getMinutes());
cal.set(Calendar.SECOND, dtTime.getSeconds());
Date date = cal.getTime();
If you are using Java 8 you might want to look at using things like LocalDateTime
or ZonedDateTime
depending on exactly what this date + time represents. 如果您使用的是Java 8,则可能要根据日期和时间的确切含义使用LocalDateTime
或ZonedDateTime
类的东西。
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