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SimpleDateFormat not working on 1629777600000 [closed]

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Date format coming from the database: 1629777600000
SimpleDateFormat simpleDateFormatter = new SimpleDateFormat("MM/dd/yyyy");
simpleDateFormat.format(1629777600000);
When using this simple date format I am not able to convert 1629777600000 to a viewable date

SimpleDateFormat simpleDateFormatter = new SimpleDateFormat("MM/dd/yyyy");
System.out.println(simpleDateFormatter.format(1629777600000L));
Print: 08/24/2021
But your code does not compile:
you initialize simpleDateFormatter but use simpleDateFormat (without ter)
1629777600000 is a Long, therefore it needs an L at its end
I think the L problem is just from modifiying the code for the stackoverflow question. But the variable name is maybe a real problem in your code.

How to get all the dates of every month in Java from LocalDate in a List [closed]

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I want to get all the dates of a month in a list so i can show all the dates from that month on a JSF page. When the month changes the amount of dates has to change accordingly.
I Use Java 8 LocalDate.
How can i best do that?

I'm not sure how can one need to put all the dates of the month in a database, but here's a way to get the List of all the dates of the current month:
LocalDate date = LocalDate.now().withDayOfMonth(1);
LocalDate end = date.plusMonths(1);
List<LocalDate> dates = new ArrayList<>();
while(date.isBefore(end)) {
dates.add(date);
date = date.plusDays(1);
}

How to compare present date to the date which is one year old [closed]

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I am working on a java application where i need to compare present date to the date which is before one year or old. the old date will be coming from input file and it could be any date which is before one year. Please help me out
long millis=System.currentTimeMillis();
java.sql.Date date=new java.sql.Date(millis);
String d1 = ord.getOrderDate();
i am unable to proceed from hereenter code here

Date class has before, after and compareTo methods. See the Javadoc API. That should give you all you need.
java.util.Date API

String to date Conversion in Java [closed]

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I have this code
SimpleDateFormat ft = new SimpleDateFormat ("dd/MM/yyyy");
String sDate="2013-11-13";
String formattedDate=ft.format( ft.parse(sDate));
but this not working. Any help

You need to change the date format like this
SimpleDateFormat ft = new SimpleDateFormat ("yyyy-MM-dd");
Edit
comment question : but I need dd/mm/yyyy format?
Date date = new SimpleDateFormat("yyyy-MM-dd").parse("2013-11-13");
String formattedDate = new SimpleDateFormat("dd/MM/yyyy").format(date);
System.out.println(formattedDate);

Change SimpleDate Format to below, and it shall work
SimpleDateFormat ft = new SimpleDateFormat ("yyyy-MM-dd");

Format for date object with am/pm [closed]

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I was wondering how I can just set a time such as 10:30am to a Date object from java.util.date? How would I format this? For example Date date1 = 10:30am.

try with the Calendar class then output using SimpleDateFormat
SimpleDateFormat format = new SimpleDateFormat("HH:mma");
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 10);
calendar.set(Calendar.MINUTE, 30);
System.out.println(format.format(calendar.getTime()));

can't do that.Only format to String representations.
SimpleDateFormat simDateFormate = new SimpleDateFormat("hh:mm a");
System.out.println(simDateFormate.format(new Date()));