Regarding Java Calendar class

Question

I wanna programmatically convert an integer in the range 1-12 to corresponding month name. (e.g. 1 -> January, 2 -> February) etc using Java Calendar class in one statement.

Note : I want to do it using Java Calendar class only. Don't suggest any switch-case or string array solution.

Thanks.

Answer 1

Use DateFormatSymbols

Proudly copied and pasted from bluebones.net:

import java.text.*;

String getMonthForInt(int m) {
    String month = "invalid";
    DateFormatSymbols dfs = new DateFormatSymbols();
    String[] months = dfs.getMonths();
    if (m >= 0 && m <= 11 ) {
        month = months[m];
    }
    return month;
}

Answer 2

Did you read the API? The method getDisplayName(...) looks like a good place to start. Doing it in one statement is a terrible requirement.

Answer 3

The Calendar class is not the best class to use when it comes obtaining the localized month name in one statement.

The following is an example of obtaining the month name of a desired month specified by a int value (where January is 1), using only the Calendar class:

// Month as a number.
int month = 1;

// Sets the Calendar instance to the desired month.
// The "-1" takes into account that Calendar counts months
// beginning from 0.
Calendar c = Calendar.getInstance();
c.set(Calendar.MONTH, month - 1);

// Returns a String of the month name in the current locale.
c.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.getDefault());

The above code will return the month name in the system locale.

If another locale is required, one can specify another Locale by replacing the Locale.getDefault() with a specific locale such as Locale.US.