My assignment is to make GUI to calculate orders and to save the calculation to .csv file.I have solved "save" button and it really does save my input to .csv file.But, my problem is "Load button" When I press it, how to load .csv file to my existing JTextFields?
View Repliesi can't make the [JfileChooser] save text file instead of opening files.that [ComboBox] always don't show me the items that i have inserted in eclipse.
View Replies View RelatedHow to force browser to open/save/save as the file from server instead of browser cache.
I am creating a csv file through a pl/sql procedure and forwarding the link to user once user clicks on link he downloads the file, however if the same thing is repeated then browser returns the old cached file instead of new file generated on server.
why my session attribute for this banking webapp wont add the deposits to the session var... it just keeps going back to the amount I set it to originally - so if I set the beginning balance to 3000 then deposit 100 it becomes 3100, but if I then try deposit another amount eg. a extra 200 it becomes 3200 not 3300 like it should be !!
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.net.*;
import java.text.DecimalFormat;
[code]....
New to programming. Am supposed to create a program that reads a text file (of integers) and computes a series of computations on these integers. I don't have the code for the integers in my code yet, (i know how to do those), but am struggling getting the array to simply print in the print writer. I have the user select a text file, read the file with a scanner, and then save the computations done from my code into another file. specifically, the problem is as follows: Write a program that uses a file chooser dialog to select a file containing some integers. The file contains an integer N followed by N integers. The program then uses a file chooser dialog to let the user specify the name and location of an output file to write results to.The data written to the output file will be as follows
(1) The original list of N numbers from the input file,
(2) The original list of N numbers printed in reverse order of how they appear
in the input file.
(3) The sum and average of these numbers,
(4) The minimum of all the numbers,
(5) The maximum of all the numbers.
[import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
[Code]....
1. creates a file.
2. ask user to write into that file
3. save the file
4. print content of file.
Is my current exercise, so far i have gotten the code to create a file. What should i use to ask user to write into that file and save?
package assignment7;
import java.io.*;
public class Exercise2
{
public static void main ( String [ ] args ) {
String filePath="newfile.txt";
File newFile = new File ( filePath ) ;
[Code] .....
1. creates a file.
2. ask user to write into that file
3. save the file
4. print content of file.
is my current exercise.so far i have gotten the code to create a file, and ask the user to input their age.what should i use to save what the user writes into the file?
Java Code:
package assignment7;
import java.io.*;
import java.util.*;
public class Exercise2
{
public static void main ( String [ ] args ) throws IOException
{
Scanner scan = new Scanner(System.in);
[code]....
I have small problem in GUI. I have a text area which has to display my test orders now what is happening instead of the text showing up in the JtextArea its still printing to the console so this order code (yes i did not use proper code standers) runs though my order class fine but its not loading the text in the JtextArea
Order code
public static String testCase1(){
orders ords = new orders();
System.out.println("Test Case 1: " + "
" + ords.getOrderDetails());
return " ";
My jbutton code :
txtContent.setText(new orderTester().testCase1());
txtContent.setText(new orderTester().testCase2());
txtContent.setText(new orderTester().testCase3());
I have 10 test case to load in the jTextArea
I wasn't supposed to use the % in front of f.I have to make a program to calculate the average temperature and annual precipitation in Jacksonville. I get this error on line 49:
java.util.IllegalFormatPrecisionException;
null (in java.util.Formatter$FormatSpecifier)
I don't get any errors during compilation.Here is my code (I'm not using the system selection yet):
import java.util.Scanner;
public class AnnualClimate1
{
public static void main(String[] args)
{
double[] temperaturesInJacksonville = {53.1, 55.8, 61.6, 66.6, 73.4, 79.1, 81.6, 80.8, 77.8, 69.4, 61.7, 55.0};
[code]....
Here my code . Iam trying to open text file in window_pane it will open when i click on save it will ask destination to save file if i save example like Read.txt it will save...when i go and check in that folder Read.txt file won't found...what is the error ....
Java Code:
import javax.swing.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.io.*;
import java.net.MalformedURLException;
import java.awt.*;
import java.awt.event.*;
public class Read extends JFrame
[Code] .....
Here my code am trying to open text file in window_pane it will open when i click on save it will ask destination to save file if i save example like Read.txt it will save...when i go and check in that folder Read.txt file won't found..
import javax.swing.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.io.*;
import java.net.MalformedURLException;
import java.awt.*;
import java.awt.event.*;
[code]....
I'm trying to change the value of bricks in my save file and for some reason it can't read the information.
public void addRecords(int brick, int log, int stone, int house){
x.format("%s%s
%s%s
%s%s
%s%s", "brick", " "+brick, "log", " " +log, "stone", " "+stone, "house", " "+house);
}
This writes information to my files. ^
public void addResource(String resource, int amount){
openFile();
readfile check = new readfile();
switch(resource){
case "brick":
[Code] .....
In my case "brick", It doesn't set the value when I try to read it. Here is the readResource method.
public int readResource(String resource){
System.out.println("Looking for " + resource);
String res = resource;
openFile();
while(x.hasNext()){
[Code] ....
Short version:
brick = check.readResource("brick");
This doesn't set brick to any value.
I insert a link to a file, that you need to download. After I click the download button and that's performed this action. And how me save the file, where i chose?
private void actionAdd() {
JFrame parentFrame = new JFrame();
JFileChooser fileChooser = new JFileChooser();
fileChooser.setDialogTitle("Specify a file to save");
URL verifiedUrl = verifyUrl(addTextField.getText());
[Code] ....
i am not able to save .java file. it says need administrator access, but i am logged in as an administrator account.
View Replies View RelatedShoppingCartSelection:
package shoppingcartselection;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
[Code] ....
I want it to save the names of the "Items" that were put into the "Cart" along with their retail prices and the subtotal of all of them, and the sales tax, and the final total, to a text file.
Main:
package shoppingcartselection;
import javax.swing.*;
import java.util.ArrayList;
public class Main
{
public static void main(String[] args)
[Code] ....
ItemPrices.txt:
Magic Booster Pack, 4
Magic Fat Pack, 40
Magic Intro Deck, 12
Magic Duel Deck, 20
Magic Card Sleeves, 8
Magic Play Mat, 25
Magic Booster Box, 120
Dice Pack, 6
Video Game, 60
Book, 10
Candy, 1
Soda, 1
Lunch, 10
Water, 1
Shirt, 10
Hat, 5
Game Console, 400
Desktop, 800
Laptop, 1000
This part of the code searches for every word in the text file and saves it to an ArrayList. It searches for the word if its valid of not.How can I offer a list of similar words when the word that the user inputs is not in the dictionary. Also I want it to prompt the user to accept the word or enter a replacement that gets saved in the dictionary.
package spellChecker.project1;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
[code]....
I need to write the same data to stdout and to a save file. In C I'd do something like:
void doWrite(int fd, char *stuff) {
fprintf(fd, stuff);
}
if(someFlag)
doWrite(STDOUT, data[]);
doWrite(saveFd, data[]);
Google shows me how to use file I/O, and how to use stdio, but not how to combine the two easily.
With my *nix command line I could "program file | tee savefile", but savefile holds the result of prior runs, gets read before I parse 'file', and this command line zero's out savefile before the program can read it.
The data is standard ASCII, I doubt I'll ever have 20k of data.
I have the file in my project sitemap.xml, which i am trying to write via XMLStreamWriter. My code gets successfully executed as i can see the logs. But my sitemap.xml file keeps blank. Why nothing is getting write in my sitemap.xml file. Below is my servlet code.
@Override
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws ServletException, IOException {
logger.info("request.getResponseContentType() ::: " + request.getResponseContentType());
logger.info("root path is :: " + rootPath);
if (request.getResponseContentType() == null) {
[Code] ....
I can see "END Document" and "Location is " under my log file.
I am wondering how to do the following:when a user clicks on a save menu item, a save JFileChooser pops up. I would like to have a default file name set in the FileName box on the chooser, similar to what applications like Microsft word has. Right now, no file name will appear until the user has selected a file.I also need to know how to get the text from this box in the case that the user enters a new file name (the getSelection function is not useful here because the user will not have selected an existing file.)
View Replies View RelatedI am doing the home work to create a mini hotel reservation system which should be able to write the data into .txt file.
case study:
1. Have 2 different types of room (1- Suite 2- Deluxe)
2. Room Rate (Suite - $500per night, Deluxe - $300per night)
3. Both rooms can accomodate 2adults and 2childs
4. Checkin time: 2pm, Checkout 11am
5. Room status = occupied once guest checkin, Room status = vacant once guest checkout
6.For checking require (ID,Full Name,Address,Nationality,Flight no/Vehicle Reg no,number of people,check-in date, check-out-date,payment detail
7.Front desk search the vacant room to be assigned to the guest
Functions:
1. View all rooms
2. Add Customer to a room
3. Display available room
4. Delete customer from a room
5. Find room from customer name
6. Exit
Files:
One file use to store room info. (to be retrieved by program)
One file use to store rate info. (to be retrieve by program)
One file use to store the booking details (to be created and write by the program).
Currently I have write a program but only compiling and display the output to the console. How to modify my code below to be able to save to the .txt file
Here is the code:
import java.util.*;
import java.io.*;
class Customer {
private String name;
private int room;
public void setName(String name) {
this.name=name;
[code]...
I am writing to a file coordinates of texts using PathIterator (Java Platform SE 7 ) saved as SVG format i defined the Font attributes using AttributedString (Java Platform SE 7 ) and TextLayout (Java Platform SE 8 ). It is saving to the file and working properly, but it is just writing as a single line of text where is my target is multiple lines of text, i began using LineBreakMeasurer (Java Platform SE 7 ) Class, but some text is removed plus i got single line of text only, where i face the problem that , How to determine the width to get multiple lines of text ? i tried to figure out from this exampleDrawing Multiple Lines of Text (The Java - Tutorials > 2D Graphics > Working with Text APIs) where is drawing multiple lines of text but i am using getBounds().getWidth() of TextLayout object the code i tried
View Replies View RelatedI have written the code to read the line from file and save first string as word and and remaining string as meaning..
E.g.: innovation a new method, idea, product, etc.
word = innovation
meaning = a new method, idea, product, etc.
In my code there is no error and have a mistake what it is means first assigning word is ok and while saving meaning ..it saves like
{
a a new a new method } like that
Java Code:
import java.io.BufferedReader;
import java.io.FileReader;
public class Dil{
public static void main(String[] arg)throws Exception
{
BufferedReader in;
[Code] ......
I am having a hard time compiling this code: I need to calculate the gpa of each student in the csv file which looks like this:
ID First Name Last NameClass LevelDesired ClassCreditsPoints GPA
9410917 Reagan Walls SophomoreCOMP 18275 77 1.026667
13498070 Stewart Fry Senior COMP 10070 92 1.314286
37500410 Talon Witt Junior COMP 100107 389 3.635514
47845461 Ciara Beard Grad COMP 11097 196 2.020619
The GPA column needs to be added by dividing the points by credits. I also need to sort the class level column by class level. For example:
ID First NameLast NameClass LevelDesired ClassCreditsPointsGPA
9410917 Reagan Walls SophomoreCOMP 18275 77 1.026667
46309070 Ivy Valdez SophomoreCOMP 1006 16 2.666667
37405616 Miriam Welch SophomoreCOMP 11057 179 3.140351
Here is my code:
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.lang.String;
import java.io.File;
import java.io.PrintStream;
import java.io.Serializable;
import java.io.ObjectOutputStream;
import java.io.FileOutputStream;
import java.util.Comparator;
[code]...
I am taking the two things that needed to be outputted, one at a time. Working on the GPA portion.
I have to calculate auto and cross-correlation from a file, like this:
Rxx(n)= 1/N* SUM[from k=1 to N-n]((x(k)-x(mean))*x(k+n)-x(mean))
and after
Rxy(n)= 1/N* SUM[from k=1 to N-n]((x(k)-x(mean))*y(k+n)-y(mean))
I've 600 x an y,
k = the numbers of x (N is the last one)
n = 0....N-1
I have to calculate auto and cross-correlation from a file, like this:
Rxx(n)= 1/N* SUM[from k=1 to N-n]((x(k)-x(mean))*x(k+n)-x(mean))
and after
Rxy(n)= 1/N* SUM[from k=1 to N-n]((x(k)-x(mean))*y(k+n)-y(mean))
I've 600 x an y,
k = the numbers of x (N is the last one)
n = 0....N-1
already calculated mean, and I've tried the following (but it doesnt work):
String sor;
int i=0;
while ((sor = br.readLine()) != null) {
String [] adatok =sor.trim().split(",");
[Code] ....
I am currently in the progress of making a GUI for a project. I am trying to make a maze and I need it displayed in a GUI. So, I thought I would be able to do that with a text file that I created. The code I have for it so far runs and compiles but it is not displaying my text file as a GUI, even though it reads the file. All I get are a bunch of green rectangles. I am using Netbeans to code this
package rectangles;
import java.awt.Color;
import java.awt.Graphics;//this will draw the maze
import java.awt.Graphics2D;//
import java.io.BufferedReader;
import java.io.FileNotFoundException;//handles file
[code]....