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javaandroidsimpledateformat

SimpleDateFormat giving a wrong formatted output

I have one function which takes input a string value like 3-2020. I want to parse this string as a date and change its format to something like March-2020 using SimpleDateFormat class. Here is the code I am using for this task:

public String getCurrentMonth(String day) throws ParseException {
    Date today = new SimpleDateFormat("MM-YYYY").parse(day);
    return new SimpleDateFormat("MMMM-YYYY").format(today);
}

but it is giving a very different output string. When the input provided as 4-2020, it returns value as December-2020. The today variable has a value Sun Dec 29 00:00:00 GMT+05:30 2019. There is a huge difference in the dates. Why is it happening? and how to solve this?

Solution

  • Y is the format for the week year. It looks like you intended to use y, which is the format for the year:

    public String getCurrentMonth(String day) throws ParseException {
    Date today = new SimpleDateFormat("MM-yyyy").parse(day);
    return new SimpleDateFormat("MMMM-yyyy").format(today);
}