I have to write a gui program where I can enter a file name and then it gets displayed in a text area when I click Open. Conceptually, I do not get this. I was thinking of appending the text file into a string or something, but I guess I'm confused on how it all works and how I can open the text file. Not asking for the code, but just a compass or something.
View RepliesI'm supposed to write a GUI application letting the user enter a file on the text field and display its hex representation in a text area and vice versa.
Here's my code:
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package hexconvertor;
import java.util.*;
import java.io.*;
public class HexConvertor extends javax.swing.JFrame {
[Code] .....
It's not doing anything, I don't understand why.
I am trying to write a program that asks the user to enter a number from 1 through 10 and then the program will display the roman numeral for that number.
I am also adding a error message in which i haven't yet because im still trying to figure out how to the program will do the roman numeral.'
I have used the if and else if. but when i input a number it just repeats the number back to me.
The program cimpiles but it doesn't do what i want. here is what i have so far. how can i get the program to display the roman numeral after the number is entered.
import javax.swing.JOptionPane;
public class Romannumeral
{
public static void main(String[] args)
{
double number;
[Code] .....
How can I read a text file present in my local directory say (C://test.txt) , iterate and populate the values of test.txt into a text area of the JSP page?
Contents in the test.txt file:
username:test
password:test123
domain:test321
DBname:testDB
This is the code that I wrote but I have two problem with two buttons one of them ... I want to delete the selected text inside the text Area which represented as b[8] and the other button that I want to select parts of the texts which represented as b[0]....
Here is the code..
package KOSAR2;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
[Code] .....
I am trying to make a program so that the user has to enter a number for the width and length and it will give the area and perimeter:
import java.util.* ;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class jframe extends JFrame {
private static final int WIDTH = 400;
private static final int HEIGHT = 300;
[Code] ....
It is giving me an error saying that the ExitButtonHandler and ebHandler do not have classes but I don't understand why.
I am facing a problem while executing a task. My task is to make such a code which will search for my source code file (abc.java) in all directories and then displays the code in textarea inside frame and along with that i also have to display the path of the file in text field. I have coded something but i am really not getting anywhere near my task.
import javax.swing.*;
import java.awt.*;
import java.io.*;
import java.util.*
public class Lab extends JFrame {
[Code] ....
I am working on a personal project and want to create a text editor to write my code. I am wondering how could I read the last input from the user and if say it was an open curly brace {, then like netbean's my editor will supply the closing curly brace. My java experience is limited but I have tried to read key board input and a few other options that did not work.
View Replies View RelatedI think I need to save the file into an object but I cannot seem to figure out how. I tried to save it into a string array but that did not work either. I have been working on that section for three weeks and cannot get it to display correctly.
public class DVDList2 {
private static void CreateGUI(){
File file = new File("C:UsersaprildesktopDVD.txt");
JTextField txtName, txtSeason, txtSearch, txtMain;
JFrame frame = new JFrame("DVD List");
txtName = new JTextField(20);
[Code]...
I am building a chat server/client and would like to have it so when a user sends a message, the message pops up in the main chat area beside their name, which I would like to be in bold font. Something like "Alan: Hello, how are you?". I can't find a way to do this with a text area or on a string. Do any swing components suitable for use as text areas support bolding of certain sections of the string that you will set to it?
View Replies View RelatedI would like to build a GUI where by I can import a text file and interrogate certain values and then display them in a window. Thing is I would like to know what window type that will support this. i.e Panel,internal frame,dialog box.. etc etc... I am using Netbeans.
View Replies View RelatedI am trying to upload the text file in specific location in my disk but when I open selection window it displays all type of files while it should display the files only having .txt extensions
I am writing the code below,
<%@page import="org.apache.commons.fileupload.*,java.util.*,java.io.*"%>
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<%
// JSP to handle uploading
// Create a new file upload handler
[code]....
I have my below Swing GUI code in which I want to read and display some contents present in text file say (test.txt) which is located in my local disk (C: est.txt). My pane tab 2 is divided into two halves horizontally. How can I read and write the test.txt file contents under the tab tab2 in the first half of the pane(where currently it is 2 written)?
Sample test.txt present in my local hard disk location
username:test1
Password:test1
DataBasename: testDB
CODE FOR TABBED PANE
import javax.swing.*;
import java.awt.*;
public class SplitPaneExp {
public static void main(String[] args){
Runnable r = new Runnable() {
public void run() {
JFrame frame = new JFrame("WELCOME");
[Code] ......
java code for adding one text file into the zipped file without extracting It is possible in java code ?
View Replies View RelatedI have a popup that displays textual info and sometimes gets text input from the user. I'm using the following code:
JTextArea textArea = new JTextArea( getGameHistory( true, -2 ) );
JScrollPane scrollPane = new JScrollPane(textArea);
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);
textArea.setFont(new Font("courier", Font.PLAIN, 12));
scrollPane.setPreferredSize( new Dimension( 30, 100 ) );
String input = JOptionPane.showInputDialog(null, scrollPane, "Fun Chess ",
JOptionPane.YES_NO_OPTION);
This shows a nice text area and an input field underneath it.The getGameHistory() method just returns a long string detailing the current game.Is there a way of just showing the text area without the input field underneath?Can the text area also be used for input instead?
how to put the output the the text area this is the code .
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package interns;
/**
*
* @author JosephP
*/
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
[Code]...
i have made one desktop application with swing and i have uses one textfile (File) in it. i want to handover to another friend to use it . How to create jar file of that program with that text file so that my friend use it without any issue . I have made it in NetBeans
View Replies View Relatedtrying to tranfer content of a text area on one jframe to a text area in another
View Replies View RelatedI have a requirement where in the content of the text area is dynamically populated from the database. I am able to successfully retrieve and display the data on the text area.
However when the content is too large, I am not able to dynamically set the height of the text area. When I try to display the same as a label, the display is flawless, dynamically sets the height as per the content. So, I tried to create a label, with same content and dynamically bind the height to the preferred height as below, but it doesn't work.
// Generate User Note Description
TextArea textArea = new TextArea();
Label text = new Label();
// SETTING THE TEXT TO A LABEL TO RETRIEVE THE HEIGHT
text.setText(usrNotes.getNote().trim());
[Code] ....
The problem I'm trying to resolve now is getting my ActionEvent to send the value input in the JTextArea out to be calculated, then to display the result in my result JLabel.
Here is an image of the GUI :
The basic procedure the teacher is asking for is the user is supposed to enter a temperature in the input. The user then clicks the input scale, and then on the output scale selection the converted value is to be displayed in the output area.
As I mentioned my problem is in the sending of the input value to my calculation area, and getting the value to display in the JLabel.
How should I approach this solution? Do I need to have a listener after the JTextArea of the input box? Will that allow me to limit the input values to numbers only?
final JTextArea inputText = new JTextArea("" + (char)176,1,4);
//ReadConsole equivalent to specific input was a number?
Here is the section of code my ActionListener is:
//celOut represents the Celcius output scale JRadioButton.
celOut.addActionListener (new ActionListener () {
@Override
public void actionPerformed(ActionEvent e) {
//if the Celcius Input Scale is selected.
if(cel.isSelected())
[Code] ....
All the calculations are required to occur in a separate java file, which what I think is tripping me up. How do I send a value from the JTextArea into the Calc.celToFahr method?
//contents of my Calc.java calculation class.
public class Calc {
public static double celToFahr(double cel){
return cel * (9./5.) + 32.;
}
public static double fahrToCel(double fahr){
return (fahr - 32.)*(5./9.);
}
}
I have problem with my simple program. I tried put some text in my text area using button1 but textListener in RighButtons is always null and it's give me NullPointerException.
WriteToArea - interface
public interface WriteToArea {
public void add_a(String text);
}
BaseFrame
public class BaseFrame extends JFrame{
[Code] .....
In my application, some text should be added to a text area in response to a click on a button. So as an action listener to this class, I made another class which implements the ActionListener.
Inside this class, I have obtained the text which I want to be added to the text area. But the text area is in another class and for the action listener I wrote another class.
Now the problem is that when I try to add the text to the text area by the following line of code, it says that textArea_1 can not be resolved or is not a field.
Java Code:
ParentPanel.textArea_1.setText("Name:"+ncrarray[0]+"
Code:"+ncrarray[1]+"
Rank:"+ncrarray[2]); mh_sh_highlight_all('java'); What should I do about it?
Even if I try to write a method like the following in the class in which the text area is created, it gives the same error.
Java Code:
public void printTextArea(String text) {
textArea_1.setText(text);
} mh_sh_highlight_all('java');
The text area is present inside a constructor of the class. I am writing the method outside the constructor (ofcourse).
I'm working on a project for my Java class and I've got the code compiled and running, I just don't think that the program is reading the text file the way I want it to.
The text file looks like this:
1168,4.25,10
1305,1.80,42
1345,12.56,16
1388,7.42,30
1480,6.54,80
1495,8.36,48
1560,15.27,65
...
The first number being product number, second being price, and 3rd being quantity. I want to be able to enter the product number and have the Textfields for price and quantity be filled accordingly.
But when I enter a product number (e.g., '1168') no match for the item is being found, regardless of what I enter. Really stumped on this. Here's my code so far --
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.Scanner;
public class Project3
{
private static Frame myframe;
private static TextField productCode;
private static TextField invNumberField;
[Code]...
i want create little program which enter the number, ant program says triangle exist or not. So code :
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
[code]...
So when i put first num like 1, next num like 2 and next num like 100 , program says Triangle exist.
I'm trying to copy my program output to a text file and still have it be displayed in the console.
View Replies View RelatedI was wondering if it's possible to do this: I want to build a java program that reads a java array from a text file.
Then I want to read it, and output it in a different format.
The reading and out is easy - as text.
But how can I incorporate the read text in to a java valid array in my program, which I can use?
Is this even possible?