英文:
Java SimpleDataFormat not displaying correctly
问题
我正在尝试将一个字符串数组转换为日期 ArrayList，格式为 - "dd/MM/yyyy"。我已经在下面包含了我的方法。当我打印 ArrayList 时，日期的格式不正确，显示为："Thu Mar 05 00:00:00 GMT 2020"。有人能想出这是为什么吗？
private void convertDates()
{
SimpleDateFormat formatter1 = new SimpleDateFormat("dd/MM/yyyy");
for (String dateString : date) {
try {
dateList.add(formatter1.parse(dateString));
} catch (ParseException e) {
e.printStackTrace();
}
}
displayDates.setText(Arrays.toString(dateList.toArray()));
}
英文:
I am trying to convert an array of strings to a Date ArrayList with the following format - "dd/MM/yyyy" I have included my method below. When I print the ArrayList the dates are not formatted correctly and are displayed as: "Thu Mar 05 00:00:00 GMT 2020" Can anyone think why this is happening?
private void convertDates()
{
SimpleDateFormat formatter1=new SimpleDateFormat("dd/MM/yyyy");
for (String dateString : date) {
try {
dateList.add(formatter1.parse(dateString));
} catch (ParseException e) {
e.printStackTrace();
}
}
displayDates.setText(Arrays.toString(dateList.toArray()));
}
答案1
得分: 0
你有一个Date对象的列表，当你将它们格式化为字符串时，它们将使用它们的默认格式，不管你用什么格式来解析它们。如果你想以那种格式显示它们，你需要明确地这样做。例如：
displayDates.setText(
dateList.stream().map(formatter1::format).collect(Collectors.joining(","));
英文:
You have a list of Date objects, and when you format them to a string, they'll use their default formatting, regardless of the format you used to parse them. If you want to display them in that format, you'll have to do so explicitly. E.g.:
displayDates.setText(
dateList.stream().map(formatter1::format).collect(Collectors.joining(","));
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