Working With Gregorian Dates And Object Date?
Feb 10, 2014
I have two classes - a reservation class & a main class. Essentially, I want the user to enter two dates: an arrival and departure date. From the two dates, I will do a calculation (num days & price). I am having trouble finding a way to let users enter the (preferably in int, but that wasnt working),use getTime() to convert it from a calender to a date object. Then I want to use the dates to do a calculation. In addition, my constructor is being funky.
package hotelreservation;
import java.util.Date;
import java.util.Calendar;
import java.math.*;
//import java.text.*;
public class Reservation
[code]...
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Sep 22, 2014
I'm a Java beginner and I'm having issues implementing Java's GregorianCalendar into my project. I'm writing to specific test code that passes arguments into an instantiated GregCal class. My problem is that I'm not sure how to pass the arguments through to my constructors and methods, or if I'm even supposed to do that at all. Date formatting is another issue, but I'll be glad If I can just get the dates in and back out. Here is some of the code:
Test code:
// Create a Student using the default constructor
Student newStudent = new Student();
GregorianCalendar dateOfBirth = new GregorianCalendar(75,7, 3);
newStudent.setDateOfBirth(dateOfBirth);
GregorianCalendar dateOfGraduation = new GregorianCalendar(90, 6, 10);
newStudent.setDateOfGraduation(dateOfGraduation);
Setter:
public void setDateOfBirth (GregorianCalendar dateOfBirth){
this.dateOfBirth = dateOfBirth;
}
I know that's not much to work with, but that's exactly my issue. I can't seem to find a reliable and UNDERSTANDABLE tutorial for java.util.GregorianCalendar anywhere. All of the existing documentation is beyond my grasp at this point. I'm assuming I need to declare and initialize MONTH, DAY, YEAR variables somewhere in order for the arguments to be passed through correctly. I'm just not sure where or how.
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Sep 24, 2014
I am having a hard time getting some comparisons with Date to function correctly.I have a driver program and two classes, ZodiacDriver , ZodiacSign and ZodiacTable. In the driver program I build an arraylist of zodiacsigns in zodiactable. That all appears to be working I then pass a birthdate and the zodiac table to a method, determineSign. This is where I am having trouble. Right now Im just trying to match the incoming birthdate with a zodiac's date in the table. however no matter what date I enter, i get pisces, which happens to be at the bottom of the list. If I remove pisces from the list I get the current last zodiac. Here is my code:
ZodiacDriver
Java Code: package zodiac;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
[code]....
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Mar 2, 2015
<%@ page import="org.springframework.web.context.WebApplica tionContext" %>
<%@ page import="org.springframework.web.context.support.We bApplicationContextUtils" %>
<%@ page import="java.util.*" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.io.*" %>
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page import="java.net.*" %>
[Code] ....
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Jun 4, 2014
When trying to convert the time zone of a date I encountered the log below. java.lang.IllegalArgumentException: Cannot format given Object as a Date..Here is what my code looks like:
1. First I will get the date from the email header by the following code.
String messageDate = (String) mail.headers["Date"];
Output: Wed, 4 Jun 2014 18:30:05 +0800
2. Next I will convert the timezone to EST.
SimpleDateFormat timeZoneConvert = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z");
timeZoneConvert.setTimeZone(TimeZone.getTimeZone(" EST"));
String l_MailDateEST = timeZoneConvert.format(messageDate.trim());
Once the code run I encounter the said error.
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Apr 30, 2015
I am looking to get the sublist from a list of objects as per date enter. Objects that are added in the list (partyList) has the property of type Date. Below is my method, but not able to figure it out, how can i get the sublist.
public void listAllPartiesDayWise() {
System.out.println(" Inside List All Parties - Date Wise");
System.out.println(" Enter the time for the party in format yyyy-MM-dd HH:mm ");
List<RegisterParty> partyListDateWise = new ArrayList<>();
Scanner scanner = new Scanner(System.in);
String date = scanner.nextLine();
[Code] ......
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Mar 8, 2014
For the object arguments in date formatters such as %td, are only calendar objects accepted?
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Feb 13, 2014
I am converting String to date object while converting this i am getting Run time Exception. Here in this code i am using String tokennizer reading a data from a text file. Here is my code
public static void main(String[] args)throws Exception {
FileReader fr = new FileReader("g:abc.txt");
BufferedReader br = new BufferedReader(fr);
String line = br.readLine();
[Code] .....
here is an text file which i am reading
priyaRaoDBA13-APR-6002-JUN-92MahdipatnamHyderabad01-FEB-93 -AdminFpriyaM784223680212348
ArifRizwanDevelopment14-FEB-8812-MAR-12Sathya coloneyHyderabad10-FEB-14 -Software EngineerMasdfghManager7842655502123
AFifRizwanDevelopment14-FEB-8812-MAR-12Sathya coloneyHyderabad10-FEB-14 -Software EngineerMasdfghManager7802655502123
AsifRizwanDevelopment14-FEB-8812-MAR-12Sathya coloneyHyderabad10-FEB-14 -Software EngineerMasdfghManager7842631102123
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Mar 21, 2014
I have a date in the following String format "2013-03-28,19:37:52.00+00:00" and post processing I am converting this to following String as per prevailing logic "2013-03-28,19:37:52.00+0000" (This is existing code and no changes have been Made here for last few years) And the using this SDFormat i.e new SimpleDateFormat("yyyy-MM-dd,HH:mm:ss.Sz") for conversion to Date Object
We are suddenly getting this exception now can't figured out what has changed ?
java.text.ParseException: Unparseable date: "2013-03-28,19:37:52.00+0000"
at java.text.DateFormat.parse(DateFormat.java:357)
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Jan 26, 2014
I am getting Run time Exception while converting String object to Date Object ....
java.text.SimpleDateFormat@b9b195a0
java.text.ParseException: Unparseable date: "14-07-2012"
public static void main(String[] args) {
String time = "14-07-2012";
[Code] .....
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Oct 27, 2014
I am creating a java plugin for moving data from cassandra database to elastic search.
I am getting all the data but the date which I am getting from the database is in human readable form ie Row[Fri Jul 25 11:36:10 IST 2014].
I want this to be converted to epoch timestamp format like 1414386721. How to do this.
How to get the date from the row object above ie I want to get the date from Row[Fri Jul 25 11:36:10 IST 2014].
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Dec 7, 2014
I wrote this application but somehow in my CheckingAccount, I get an error saying GregorianCalander cannot be converted into double.
The line that gives me an error is "super(name, number, openDate, balance);"
package finalproject;
import java.util.*;
import java.text.SimpleDateFormat;
public class CheckingAccount extends Account {
final SimpleDateFormat sd = new SimpleDateFormat("yyy/mm/dd");
CheckingAccount(String name, String number, GregorianCalendar openDate, double balance) {
super(name, number, openDate, balance);
[Code] .....
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Sep 20, 2014
I am having trouble with getting output to be what I want. I can get the output when a user enters their values for month, day and time using a scanner object and they print correctly, but what I want is before they input values, to display the current date. Here is a snippet of what I am working with *these are in two separate files, the first has all the variables etc, the second has the main method.
In one java file:
Java Code:
private int numOfGuests, month, day, year;
private GregorianCalendar eventDate = new GregorianCalendar();
public Event()
{
this("not assigned" , 0, new GregorianCalendar());
}
public int getDay() {
[Code] ....
This gives me 0-0-0 as a result instead of current date.
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May 7, 2014
I have made a code that should allowed me to move an object in a frame, using the arrow keys. But I don't know why, is not working.
package joc;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.ImageIcon;
[Code] ....
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Jul 17, 2014
Here is my code the whole program is working correctly but the Boolean equals and the has code and it is a requirement for the assignment. Why it is not working.
I know there are issues with the code I am new with java and was struggling so I have to clean my code up before I submit the assignment but for right now I have the out put the way I want it except the Boolean and hash code methods always output that the rectangles aren't equal even when I know they are and it outputs the not equal statement twice??
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.util.Scanner;
[Code] ....
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Jul 17, 2014
I have an requirement of splitting a Date-Time String i.e. 2013/07/26 07:05:36 As you observe the above string has Date and Time with space in between them.
Now I want just want split the string not by delimiter but by length i.e. after 10th place and then assign it to 2 variable i.e. Date <----2013/07/26 and Time <---07:05:36 separately.
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Sep 29, 2014
write the algorithms of the following problems.
1. Write an algorithm that asks the user for your birth date and the current date and displays how many days has passed since then (remember that April, June, September and November has 30 days, February has 29 on leap years, and the rest 31)
2. Write an algorithm that asks the user a number (save it as N) and displays the N term of the Fibonnacci series (take it as 1, 1, 2, 3, 5 ...)
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Dec 3, 2014
I am trying to write a date class and not use the built-in library. How do I check for today's date?
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Apr 4, 2015
Given a Date such as this sampleDate (120, 08, 02), does SimpleDateFormat transform this given sampleDate using (sampleDate.get(Calendar.DATE)) ?
Issue is that without the SimpleDateFormat the days are outputting correctly but starting with 1,2,3,4 etc and when I apply the SimpleDateFormat to the above Date I only get 01,01,01 etc...
I am looking for 01,02,03 etc...
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Jan 23, 2015
inserting a date mask for the column Date in jtable when the user edits the value in the row,the mask should be shown in column Date.
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Nov 3, 2014
Compile errors. This is the code I have:
import java.util.Scanner;
import java.io.*;
public class LeapYear {
public static void main(String[] args) throws IOException {
int month1, day1, year1, month2, day2, year2;
[Code] ....
This is the compile error I'm getting:
The total number of days between the dates you entered are: 76882
Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:909)
at java.util.Scanner.next(Scanner.java:1530)
at java.util.Scanner.nextInt(Scanner.java:2160)
at java.util.Scanner.nextInt(Scanner.java:2119)
at LeapYear.main(LeapYear.java:16)
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Oct 19, 2014
I have been tasked with creating an invoice (school assignment). Part of the calculations is creating an interest depending on the amount of days between the current date entered, and invoice date entered (The program prompts the user to enter both the current and invoice dates by asking for the day, month and year).
We are also supposed to set the contructor to a default date of 1/1/1900.. but I don't know how or where to code that.
How to calculate the difference between the CurrentDate and Invoice. I have displayed the dates to the user as follows.
public void displayDate() {
System.out.println("
Today's Date: " + month + "/" + day + "/" + year);
}
public void displayInvDate() {
System.out.println("
Invoice Date: " + invMonth + "/" + invDay + "/" + invYear);
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Feb 1, 2014
I have a date sch_date_time=01/02/2014 08:00
And when i am doing SimpleDateFormat sdf = new SimpleDateFormat("dd/mm/yyyy HH:mm");
date1 = sdf.parse(sch_date_time);
when i am printing date1 it is printing as Wed Jan 01 08:00:00 IST 2014,but it should be printed as Sat Feb 01...
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Jun 29, 2011
I'm trying to write a program that computes the number of days between two dates. How I can achieve this. I'm quite sure I'm supposed to use the Calendar class.
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Feb 10, 2014
I know the below code is supposed to format the FormattedTextField but it doesn't seem to do anything to the form (shown in the picture below). I was wanting, when the form loaded: the text field to look something like this
00/00/2014 - 00:00 am
Where the user is able to
- enter datelike information around the symbol separators ( / or : )
- But where the user could not remove these symbol separators
Code:
package datefield;
import javax.swing.JFormattedTextField;
import javax.swing.text.DateFormatter;
public class NewJFrame extends javax.swing.JFrame {
public NewJFrame() {
initComponents();
[Code]...
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Dec 5, 2013
I know this has been covered before but none of the answers made sense to me. I'm hoping there is an easy way to do this. I have 2 user inputted strings that I have converted to dates and I just want the difference in days.
My code :
import java.util.Date;
import java.text.SimpleDateFormat;
import java.util.Scanner;
import java.text.ParseException;
public class DateTest {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws ParseException {
[Code] ....
Apparently I can't just subtract the dates like I would in VB.
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