Question

我想将字符串转换为Date，然后将该日期格式更改为保存在Date Object中。日期将自动更改其格式。

try {
        String starttime = "10:00AM";
        SimpleDateFormat format = new SimpleDateFormat("hh:mma", Locale.ENGLISH);
        Date startdat = format.parse(starttime);
        Calendar calendar = Calendar.getInstance();

        Calendar startcalendar = Calendar.getInstance();
        startcalendar.setTime(startdat);
        startcalendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));

        java.text.DateFormat simpleformat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSSZ", Locale.US);

        String **time**=simpleformat.format(startcalendar.getTime());

        Log.e("taggg",String.valueOf(time));



    }catch (Exception e){
        e.printStackTrace();
        Log.e("error",e.getMessage());
    }

我希望时间变量以相同的格式保存在日期对象中。

Answer 1

检查我已更新

只需更改此

java.text.DateFormat simpleformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.US);

所以更新

try {
            String starttime = "10:00AM";
            SimpleDateFormat format = new SimpleDateFormat("hh:mma", Locale.ENGLISH);
            Date startdat = format.parse(starttime);
            Calendar calendar = Calendar.getInstance();

            Calendar startcalendar = Calendar.getInstance();
            startcalendar.setTime(startdat);
            startcalendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));

            java.text.DateFormat simpleformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.US);

            String time=simpleformat.format(startcalendar.getTime());

            Log.e("taggg",String.valueOf(time));



        }catch (Exception e){
            e.printStackTrace();
            Log.e("error",e.getMessage());
        }

将字符串转换为日期，然后更改该日期格式

1 个答案: