I have this bit of code and I'm trying to have the outcome display in format 00.00 format but for some reason it comes out as 0.0.0 format. How to get it formatted to xx.xx format to get the total amount of hours from the calculation of endtime-starttime? it doesn't seem to be taking into account if more than one day passes by either .
i'd been using Opencsv to upload all this data into my Db(Postgres) using EclipseLink with batch inserting, it wont take more than 5 secs to load 200k+ data cause all the columns are of type string so theres no format require, the problem comes when i need to give a special format to the data that is in this table (date, Integer, etc).
Right now how it works:
- Ill go row by row (when its required) verifying the format of the data and convert it with something like this Ex: Date date = Fechas.strToDate(data, Pattern) and fill the new Object with this info
what i'm planing to do
- With the function of EclipseLink OPERATOR im gonna use that to change all the rows of a column that requires a NUMBER format with OPERATOR('ToNumber',column1,'9999999999')
i cant do the same for Date cause ill get an error if the data doesn't have a Date like pattern
how to handle this Date formatting(from a query, or directly in java).
while (scan.hasNextInt()) { list.add(scan.nextInt()); }
It asks the user to input integers and passes them to an ArrayList of integers named list. Without any termination it works fine, but I am not sure about how to terminate the scanner at a specific value. I am trying to terminate the scanner once the user enters 0. Is there a method in the Scanner class that terminates at a specific value?
I've been trying while (scan.hasNextInt() && scan.nextInt() != 0 ) but it seems to only work on the second zero entered. For ex, if I enter 2 3 6 8 0 0 it stops on the second zero, not the first
The basic gist is it's "A program that reads in a text file that uses a specific input format and uses it to produce a formatted report for output."
Specifically :"For this lab you will write a Java program that produces a simple formatted report. The program will prompt the user to enter a file name. This file must contain information in a specific format (detailed below). Each "block" of the file contains information for one player in a competition -- the name of the player followed by a number of different scores that that player achieved. The program should find each player's average score, median score and best and worst scores and display them in a line on the final summary report. The program should also determine which player has the highest average score and which player has the lowest average score."
I get the following errors when I try and compile it:
Enter an input file name: Project11.txt Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException... -1 at java.util.ArrayList.elementData(Unknown Source) at java.util.ArrayList.get(Unknown Source) at Project11.getMedian(Project11.java:68) at Project11.main(Project11.java:27)
I get that the error(s) reside in lines 68 and 27, among problem other areas, but I'm not exactly sure how I can fix them.
Here's my code:
import java.io.*; import java.util.*; public class Project11 { public static void main(String[] args) throws IOException{ Scanner in = new Scanner(System.in); System.out.print("Enter an input file name: "); String input = in.nextLine();
I am trying to write a specific byte sequence to a specific memory location on a removable storage drive. Does Java allow me a way to do this? I know the dangers in accessing memory, but the memory location of the data that will be written will never change.
- from the main class will arrive three variable (String name_used, int level_choose, int level_result)
I have a .txt file with this kind of formatting:
mario 1 1 0 1 0 1 carlo 0 0 0 1 1 0 ...
Where I use 1 and 0 in the main for write if the level (you see that the numbers are always sixr? are egual to six level existing) BEFORE is done correct or wrong
- when in the main a user make a level a feedback coming back from the class level saying if the user made the count correctly or wrong. and i wanna replace the value (1 or 0) in the txt file with the new level result.
So i have all what i need as parameters i think.
name_used to look for the correct line in .txt file with .indexOf level_choosed to go throught the correct index of that line level_result (1 or 2) to be replaced with the existing one
Java Code:
public void salvaRisultati(String name_used, int level_choosed, int result_of_level) throws FileNotFoundException{ } } mh_sh_highlight_all('java');
I have some problem to understand the way to make this:
In my main class a user can save his name in a txt file (and the system initially will add 6 value equals to 0) than he can choose between 6 level and make it.
example of .txt file data:
mario 0 0 0 0 0 0 carl 0 0 0 0 0 0
AT THIS MOMENT i just made other class and they work, is this new one that is hard for me. I'm trying to make a class that:
1- (first method called verificaRisultati) take name_used and level_choosed from the main and go to check in the .txt file if that level before was done right(1) or wrong(0)
and return something like "before you made this level properly" or "before you made this level incorrectly" AND THEN let the user start with the level.
2- (second method called salvaRisultati) at the end of the level i wanna pass the result (correct/incorrect) to another method of this class that will save the value (1 or 0) associated to the user in the right position.
This is the class that i'm writing:
Java Code:
import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; public class ResultUsers {
[Code] ....
I really need some hint and some code example because I'm stuck. How I can take exactly the line with the user name? How I can correctly split the line in an array and then read/modify the value for that level?
public class MyInteger { private int value; public MyInteger(int number){ value = number; System.out.println("Constructor created with value of " + value);
[code]....
I can't seem to get the value for integer1 and integer2 to pass with the setValue method. I get a runtime error stating the I need to have an int value for these two integers.
I have been given a piece of work to do for College that requires me to format user input. For example: This is an example of text that will have straight left and right margins after formatting
The user inputs the width, in the case above being 20. Each line has to therefore be 20 characters long. All spaces are to be replaced with full stops.
This.is.an.example.o f.text.that.will.hav e.straight.left.and. right.margins.after. formatting.......... public class Main { public static void main ( String args[])
My program is pretty much finished and does what it is supposed to do but it is displaying the href= with the url link how can i get my program to drop the href= from the url link because it is only supposed to display 'url' right now it is just displaying href='url' ...
public class myList { public static void main(String[] args) { String htmlCode = (long string of url links) int linkStart = 0; while (true) { linkStart = hrefSearch(htmlCode); if(linkStart == -1) {break;}
import java.text.DecimalFormat; public class Money { //Fields for money will hold dollars and cents private long dollars; private long cents;
My task is to use those fields and make a toString method that returns them like a dollars sign. For instance, if there are 32 dollars and 40 cents, then in my String method I have to return something similar to this "$32.40."
I have already tried some of the methods, but they don't seem to work fine.
It shows some Error Message as "DXE compiler error. No table 'GTGT' found in DXE. Source name: DxeAPI. XML: None". It it possible to add some condition for Grand Total? If so, how I alter my XML??
import java.util.*; public class TrafficIncidents { public static void main(String[] args) { Scanner s = new Scanner (System.in); // Array for days String [][] days = {{"Sat"},
[Code] ....
This is my output:
Day AM PM -------------------------------- Sat Sun Mon Tues Wed Thurs Fri 5 1 1 2 4 1 0
Basically I want to align the AM traffic incidents under the heading "AM" but am not sure how to accomplish this. I am using separate arrays for all three of these types of information and need the info to line up with their respective titles.
List item List item List item List item List item List item List item
I want to insert the above text in the same way as it looks above in jtextpane. I would be copying it from word and inserting it in jtextpane. When I copy the text in jtextpane the bullets disappear. Also i dont want to use HTMLEditorKit.
I've been scanning forums for answers to this problem, but most deal with simple programming that you might find in a classroom (i.e. "System.out.printf") which will not work in the GUI I'm attempting to complete. Here's the tale of the tape:
The GUI is a price calculator I'm developing for my company that takes input from drop-down menus and several Jtextfields and calculates the answer based on the values contained within each. It's completely done (and functional), so I'd rather not change too much if at all possible. Because I'm dealing with decimal values then I'm getting 9 decimal places in the output JLabel, though. In order to display the answer, I'm using a series of "totalPrice.setText(..." declarations.
Because there is a fair amount of text and the values in the calculation are constantly changing, is there a way to 'simply' format the output JLabel to display only 2 decimals? Or is there an alternative solution that would work--say with a JTextfield instead--without having to completely re-code the calculator?
I want to write a text area to a file which I have accomplished however the formatting for how it is written into the text file is different. Is there a different library I must use to retain the formatting?
I'm using a BufferedWriter to write to the file
if (!file.exists()) { try { BufferedWriter output = new BufferedWriter( new FileWriter(file)); output.write(textArea.getText()); output.close(); } catch (IOExcception io) { io.printStackTrace(); } }
I am writing a class which formats console output as a table. It displays the type of an entry, the name of an entry, and the data for an entry. I am stuck on a required for loop which appends a tab character to a string, for formatting it as a table. It doesn't seem to be adding any of the tabs and I can't tell what I've done wrong. As far as I can tell the contents of the loop are never reached, and I can't make sense of it.
The ConsoleWriter class that contains the code that is in error...
Java Code:
package frontend; public class ConsoleWriter { private static String tabbedData(String data, int min) { System.out.println(); //for debug int tabcount = 0; int len=8*min;
I have this error that keeps coming up any time I select one of my buttons. It actually doesn't hinder the performance of the project, everything works. But I am concerned I missed something and errors are never a good sign.On a slightly different note, I would like to figure out what the best way to format my output would be? I would like it to display as "100.00 F". I have a couple ideas on how to get the F symbol (or other symbol) by inserting something like
String degreesymbol = "F" or whichever it is and then returning that in the output string later. I can't get the decimal formatted correctly and I don't know how to print the degree symbol.Here is the code
I'm trying to figure out a good way to allow my users to have some formatting options within a text box in my application. Ultimately, they need to be able to have text that is alternating between two separate fonts, and ideally could have both italicized and bolded words as well.
