Object Arguments In Date Formatters?
Mar 8, 2014For the object arguments in date formatters such as %td, are only calendar objects accepted?
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Method Is Declared To Take Three Arguments - Only Two Arguments Pass On Program Call
Jun 9, 2014A method is declared to take three arguments. A program calls this method and passes only two arguments.Will it take the third argument as
1 null
2 void
3 zero
4 Compilation error
Cannot Format Given Object As A Date
Jun 4, 2014When 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.
Get Sublist Of Object For Particular Date
Apr 30, 2015I 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] ......
Converting String To Date Object
Feb 13, 2014I 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
Working With Gregorian Dates And Object Date?
Feb 10, 2014I 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]...
String Format - Conversion To Date Object
Mar 21, 2014I 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)
Converting String To Date Object - Runtime Exception
Jan 26, 2014I 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] .....
How To Convert Cassandra Date Object To Epoch Timestamp In Java
Oct 27, 2014I 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].
Splitting Date String By Date And Time And Assigning It To 2 Variables?
Jul 17, 2014I 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.
Algorithm That Asks User For Birth Date And Current Date
Sep 29, 2014write 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 ...)
How To Check For Todays Date When Writing Own Date Class
Dec 3, 2014I am trying to write a date class and not use the built-in library. How do I check for today's date?
View Replies View RelatedTransform Simple Date Format - Get Calendar Date
Apr 4, 2015Given 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...
How To Use Date Mask For Date Column In JTable
Jan 23, 2015inserting 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.
View Replies View RelatedMake Date Column Show Only Date And TimeIn And TimeOut Column Only Show Time
Mar 11, 2014How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.
View Replies View RelatedOverloading Variable Arguments
Dec 27, 2014I am going through Thinking in Java, 4th Ed and I came across the section that talks about overloading variable arguments. I tried out a piece of code from the book. (Method and class names not exactly the same).
public class Varargs
{
public static void m1(Character... args)
{
System.out.println("Character");
[code]....
In the above code, the compiler throws an 'Ambiguous for the type varargs' error. The error goes away if the first method is changed to:
public static void m1(char c, Character... args)
why there is ambiguity in the first piece of code and not the second.
Command Line And Two Arguments
Sep 14, 2014 i have to run my program from the command line...My code is:
public static void main( String[] args )
{
// check command-line arguments
if ( args.length == 2 )
{
// get command-line arguments
String databaseUserName = args[ 0 ];
String databasePassword = args[ 1 ];
[code]....
Now everything works in Netbeans but running it from the command line, i get an error message ".java uses unchecked and unsafe operations".I have added a bit more code to the code above
for (int i = 0; i < args.length; i++) {
System.out.println("args[" + i + "]: "
+ args[i]);
}
Just not sure how to run it from the command line,
Using A Button To Run Executable With Arguments
Nov 8, 2014I am new to JAVA. I need to execute a program, based on the OS. If I am on Mac, the program is a .x and if It is on Windows the program is .exe. The program also requires a line of commands attached to it (i.e. relap5.(x) or (exe) -i inputFile -o outputFile -r restartFile -s stripFile
Here is my coding
String in = " -i ", tfIntdta.getText();
String rst = " -r ", tfRstplt.getText();
String out = " -o ", tfOutdta.getText();
String strp = " -s ", tfStpdta.getText();
if tfStpdta.contains(".csv")
String run = in, rst, out, strp;
else
String run = in. rst, out;
// I want to execute either a .x file or .exe file, depending on if I am
// running the app on windows or mac
run relap5.(x) or (exe) (string run goes here)
ArrayList In No Arguments Constructor
Sep 29, 2014I have been able to create a no arg constructor and pass empty double, int, and strings but i am not able to pass an arraylist.
class Savings {
private double balance;
private ArrayList <String> transaction = new ArrayList();
public Savings (double B)/>
{
balance = b;
}
public Savings()
{
this(0.0,new ArrayList());
}
Alternative To Update Passed Arguments?
Apr 22, 2015I am writing a simple program in Java, where I call a method and pass some variables (namely, min and max) as arguments. This method is recursive, so the same arguments are again passed on in each recursive call.
I need to update these variables in recursive calls so that when the calling method uses them, it uses updated values. As it might sound confusing, here is sample code :
// Function 1.
void func1() {
//Call func2.
func2 (int hd, int min, int max, Map<String, String> map);
//Other stuff.
}
// Function 2.
[code]....
As you can see, min and max are updated after each recursive call returns, based on conditions. However, these changes aren't reflected in original min and max, which were used by func1 while calling func2. As far as I know, this happens due to call by value mechanism being used by Java while passing arguments. If I declare min and max as instance variables in the class, my problem is solved. But, I want to know whether there's any other way to update these variables so that changes in original min and max are reflected. Yes, I can return them as an array of 2 elements each time while returning, but it didn't seem a good solution to me.
Equals Signature / Constructors And Arguments
Jul 14, 2014In Java code, write class called Student with the following features:
• a private instance variable int studentNumber that is initialized to zero.
• a private instance variable String firstName;
• a private instance variable String lastName;
• a constructor which takes an integer argument and two String arguments to initializes the three respective data items.
• a public method with signature equals(Student s) . . .
So far this is my code :
public class student {
private int studentnumber = 0;
public student () {
firstname= "forename":
lastname="surname":
public student (integer studentnumber, string firstname, string lastname) {
this.firstname= firstname
this.lastname= lastname:
My question is how do i add the integer in the argument do i have to use int =? and how would i go about doing the public signature equals...
How To Write A Constructor Where Can Pass 1 Or 2 Arguments
Apr 6, 2014I am looking to write a constructor (in a herited class) to initialize the name of a single piece and its orientation using values passed as parameters. If no value is given for guidance , it returns "none" , I do it in this way but i am not sure it is the right way:
public SimplePiece(String piece,String d){
super(piece);
if(d == null){
guidance = "none";
}else{
guidance = d;
}
}
What do you sugger me to do to get the right code .
Cannot Infer Type Arguments For ArrayList
May 1, 2014At the beginning of one of my classes, I instantiate some List objects. For example ...
Java Code: private List<> byName = null; mh_sh_highlight_all('java');
... then later, I reference this again in a method like this:
Java Code: byName = new ArrayList<>(rs.getString("firstName"), rs.getString("Last Name")); mh_sh_highlight_all('java');
This is where I get the error. I've tried making the list of <String>, but that didn't make a difference.
Two Ways To Pass Arguments To Methods
Nov 14, 2014I have a test that covers Objects & Classes, Importing Classes and Polymorphism. One of the essay questions will be: Explain two ways to pass arguments to methods and give examples. I was reading the book and found Pass by Value and Pass by Reference. Is this the two ways to pass arguments?
View Replies View RelatedConstructor Arguments Error When Compiling
Oct 18, 2014I am trying to create an array where each object includes a service description, price, and time in minutes. I have a Service class and a SalonReport class:
import java.util.*;
public class Service
{
public String serviceDescription;
public double servicePrice;
public int timeMinutes;
[Code] ....
When I compile this, I get an error message that says:
SalonReport.java:8: error: constructor Service in class Service cannot be applied to given types;
salonServices[0] = new Service("Cut", 8.00, 15);
^
required: no arguments
found: String,double,int
reason: actual and formal argument lists differ in length
What this error message means and how I can correct it? I am confused because my SalonService() method has (String service, double price, int minutes), and each object is listed in that exact order.
Using Command Line Arguments As Parameter
Mar 1, 2015What I'm supposed to do is use the time class and take the command line arguments and print them as the start and end times and then calculate the elapsed time between the two. My issue (hopefully my only as I have been working on this all day now) is that I cannot call the command line arguments using LocalTime. Below is what I have so far.
import java.time.Duration;
import java.time.LocalTime;
public class Clock {
private LocalTime startTime;
private LocalTime stopTime;
//default constructor-initialize startTime to current time
public Clock(){
this.startTime=LocalTime.now();
[Code] ......