Change datetime format to words in Android-CodePudding

I know this is common to ask but I've wondered why it didn't work when I tried to convert the DateTime to words So I have this format

Provided format

2022-05-18 22:30:00

Result/Convert to

May 18, 2022 10:30 PM

This is what I've tried but it returns me an error need help

java.lang.IllegalArgumentException: Cannot format given Object as a Date

Sample

    String schedule = "2022-05-18 22:30:00";
    String outputPattern = "dd-MMM-yyyy h:mm a";
    
    SimpleDateFormat outputFormat = new SimpleDateFormat(outputPattern);
    String str = null;
    str = outputFormat.format(schedule);
    holder.aptDate.setText(str);

CodePudding user response：

You need to parse your input string to a date class, and then format the date in desired format.

public class Temp {

  public static void main(String[] args) throws Exception {
    String schedule = "2022-05-18 22:30:00";
    String outputPattern = "MMM dd, yyyy h:mm a";

    DateTimeFormatter inputFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    LocalDateTime dateTime = LocalDateTime.parse(schedule, inputFormatter);
    String output = DateTimeFormatter.ofPattern(outputPattern).format(dateTime);
    System.out.println(output);
  }
}

This example uses LocalDateTime, located in java.time package, which contains the modern java date-time API.

CodePudding user response：

You cannot format String to Date. Convert the input to date first, then format. Eg:

String inputPattern = "dd-MMM-yyyy h:mm a";
SimpleDateFormat inputFormat = new SimpleDateFormat(inputPattern);
Date d = inputFormat.parse(schedule);

Now you can format it into any pattern you want.

str = outputFormat.format(d.getTime());

If possible try to use java.time for DateTime as util.date is deprecated.