Swing/AWT/SWT :: JTextField - How To Remove Text When User Clicks On Text Field
Jan 28, 2014
I have a textField in which I have text in. The text is enter customer name. I would like for this text to disappear whenever the user clicks on the textField to enter a customer name. I am using the automated swing gui builder in NetBeans. Is their some sort of feature for this under properties of the text field? If not then what are my other options?
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Apr 17, 2015
I'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.
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Mar 15, 2015
I am trying to run a simple program in which on clicking on the TextField will show some required text under the Text Field .Here is my code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Awt
{
public static void main(String...s)
[Code] ....
I am expecting the on clicking anywhere inside the text field should show me the Text : "Mouse Clicked" . But i am getting this error:
Awt.java:77: error: cannot find symbol
tf.f.setText("Mouse Clicked");}
^
symbol: variable f
location: variable tf of type Awt
1 error
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Apr 8, 2014
Im writing a program that records the score in a dart game. One component of the program is a stage where players enter their name.This information needs to be displayed in another part of the program. These two components are in two different classes. My problem is I dont know how to get that information from one class to another.
Im using Jtextfield in Jframe to record the information.
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Nov 11, 2014
I want to create 3 JTextFields in a row with all being of equal size.But my first Text field gets so wide than the other two.After adding each component at a time and seeing what causes the problem I realized that if I type a long text for the JLabel that's when this problem occurs.If I reduce the length of the text in the JLabel JTextFields get into the sizes I want. Here's my code
import java.awt.*;
import java.awt.event.*;
import java.lang.Math;
public class Calculator1 extends JFrame {
JTextField value1=new JTextField("0");
JTextField value2=new JTextField("0");
[Code] ....
How can I stop the JTextFields changing size when I change the JLabel label1's text length...
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Apr 24, 2015
I'm working on a simple text editor, and I'm currently saving the contents of my JTextPane in a file using an HTMLEditorKit (text is a JTextPane):
private void save() throws IOException {
int returnVal = fc.showSaveDialog(window);
if (returnVal == JFileChooser.APPROVE_OPTION) {
StyledDocument doc = (StyledDocument)text.getDocument();
HTMLEditorKit kit = new HTMLEditorKit();
BufferedOutputStream out;
[Code] ....
The problem I'm having is that after opening a file that I saved, it does not display (if I disable text/html, it displays the entire html code, but when I re-enable it, nothing displays at all.) Am I loading it wrong, or am I setting the JTextPane's text incorrectly? Or is it, perhaps, another error that I didn't catch?
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Nov 12, 2014
i need to develop a java program in which it will ask the user "Username" and "Password" and by which it will login to a wesite.
I have developed a GUI in which the username should be entered in the User "JTextfield" and Password in Password "JPasswordField". I need to make sure that password should not be displayed in the GUI. but I didnt find a way to parse the string (char) entered in the "JPasswordField" to the website.
It is always passing a 'null' character! I tried to search in internet and i found that it wont be able to pass the passwordfield characters but you will be able to check in the main function itself by comparing with another char array in the main program itself whether the password entered is correct or not.
Is there any alternate way for this?
Objective : Parse the password (which is not displayed in the GUI) to a website or some other function where it will use it
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May 25, 2014
I have a question about JTextArea colors. When i set the color to blue and then write something on the JTextArea (JTextArea.append) and then set it back to black everything will be black. How can i solve that? Like in Notepad++ or Eclipse when you write keywords in a JTextArea (where you write your code) only some words change color.
This is my code:
// All the imports
public class whatever extends JFrame {
JTextArea a = new JTextArea();
public whatever() {
super("Title");
add(a);
[code]...
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Apr 30, 2015
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.
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Jun 17, 2015
I am trying to use JTextField. I have windows 7.I have jdk 8u45. I am trying to use multiple text boxes. I have written the following code:
import javax.swing.*;
import java.awt.*;
class Avg5Nums{
int num1, num2, num3, num4, num5;
double Avg;
Avg5Nums(int val1, int val2, int val3, int val4, int val5) {
[Code] ....
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Jan 15, 2014
Coding to show pop when focused on any button or text field...i want to show inf pop when we take mouse cursor on any button or field..want coding to be written in action performed in netbeans....
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Apr 19, 2014
I want to display a new panel with a text field and a label in it, and add the text from that textfield to an array list each time i press enter. here is what i am trying to do:
public JPanel startStateNoPanel(){
startStateNoPanel = new JPanel(null);
startStateNoPanel.setBackground(Color.YELLOW);
stateNo = new JLabel();
stateNo.setText("Enter Start State Number: ");
stateNo.setBounds(5,40,200,20);
[Code]...
Here is my method to add Panel to Action Panel which is further added to the Frame
public void addPanel(JPanel panel, String name){
ActionPanel.add(panel, name); // there is the card layout on action panel
}
symbolCountPanel is a panel which consists of a text field to take numberOf alphabets
if((symbolCountPanel.isShowing()) && (ex.getSource() == symbolCountF)){
if(!isTextFieldEmpty(symbolCountF)){
new SwingWorker<Void, Void>() {
protected Void doInBackground() throws Exception {
AlphabetCountF.setText(symbolCountF.getText());
setNumberOfAlphabets(Integer.parseInt(symbolCountF.getText())); // setting Number of Alphabets
[Code]....
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Sep 30, 2014
So basically I have this alpha.dat file which stores data submitted when I execute the alpha class and here I have a AWT textfield which reads a password from user. I have another class called beta and I have another AWT textfield in it which also reads the same password from user. How do I compare both passwords?(I know I need both classes to refer to alpha.dat but how do I compare both textfields in different classes)
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May 19, 2014
I just want to add a text field and a label next to it that says "Hourly Wage".
Also, when I run this in Xcode, it reports back with "Shell Script Invocation Error" "Command usr/bin/java failed with exit code 1".
Here's my program:
package summerIncome;
import java.util.Scanner;
public class SummerIncomeCalculator {
public static void main(String[] args) {
jFrame frame = new Jframe("Summer Income Calculator");
frame.setSize(400,300);
[Code] .....
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Oct 13, 2014
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?
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May 13, 2015
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] .....
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Nov 17, 2014
I have some project, and I wanted to show some long text stored in MySql database, on a java control such as JTextArea.Here is part of my code
infoPanel.add(new JLabel("Description"));
JTextArea desc = new JTextArea(7, 8);
desc.setText(c.getDescription());
desc.getFont().deriveFont(Font.BOLD);
desc.setForeground(Color.BLUE);
infoPanel.add(new JScrollPane(desc));
c.getDescription retrieves a long text from database. When it is displayed, it will be very wide, how can I make it more visible or break the text.
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May 9, 2015
I want to use this class and method with all of my buttons and text fields. My program contains 1 push button that adds questions and answers to a test, 2nd button that starts a test, a 3rd button that scores the test, and a text field that enters the user information. How would this work? I know how to create questions and answers, start a test, and score a test it's just a matter of how to implement the button and text fields. I'll post the code that I have done so far.
See:
private class ButtonListener implements ActionListener{
public void actionPerformed (ActionEvent event)
with all of my buttons and text fields.
import javax.swing.JFrame;
public class TestingDriver
{
//-----------------------------------------------------------------
// Creates and displays the main program frame.
//-----------------------------------------------------------------
public static void main (String[] args) {
JFrame frame = new JFrame ("Testing Program");
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
[Code] ....
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May 19, 2014
code used to create watermark in text-field of any registration page?
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Apr 30, 2014
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).
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Oct 4, 2014
Trying a simple form with a text field and a submit button; the text field should start with zero and increment by 1 every time a user clicks it.
My HTML
<html>
<body>
<h2>JSP Counter</h2>
<form method="post" action="counter.jsp">
<input type="text" name="integer" value="0"/>
<input type="submit" value="Add 1" />
</form>
</body>
</html>
My JSP<%
String param = request.getParameter("integer");
try {
int i = Integer.parseInt(param);
i ++;
} catch (Exception e) {
}
%>
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Apr 16, 2014
I am generating textfields dynamically using JSTL forEach. Here is the code ..
<c:forEach var="underlyingTickers" items="${underlyingTickersList}" >
<tr>
<td ><input name="underlyingTickers" type="text" id = "underlyingTickers" value="<c:out value='${underlyingTickers}' />">
</td>
</tr>
</c:forEach>
If there are 4 values in underlyingTickersList A, B C, D and E ... I am getting those values correctly displayed in each text field.
However if I submit the form with all these value how can I get it in the bean? I guess I need to have dynamic id or name for each text field. How can generate it?
Note** I dont have Struts framework.. I am using request.getParameter to fetch the values and set into the bean variable.
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May 1, 2015
I need to format the items(buttons, labels and textfields) to make them look like the picture in the attachment.Here is my code:
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
[code]....
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Oct 12, 2014
I just started Java a few days ago and I'm having trouble with ActionListener..
Here are my codes so far , i'm having trouble with the
btnDetermineAction10686696_842067395825457_2521361553839739125_n.jpg:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class NumberAnalyzer extends JFrame{
private JButton btnDetermine, btnClear;
private JTextField txtNumber, txtFactors, txtPrime;
private JLabel lblNumber, lblFactors, lblPrime;
private JPanel pnlNumber, pnlNumber1,
[Code] ....
The output should be the one in the picture:
Input is placed at the NUMBER text field.
Identify its factors, write it at FACTORS text field.
Determine if it is prime. If prime, output at PRIME text field is “Yes”, “No” otherwise.
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Oct 10, 2014
Is it possible to validate the input of a TextField that ist bound to a Property before both values are updated? Following is an example of my problem .....
In my model, there is a SimpleDoubleProperty discount. As you can see, there is some validation logic in the method setDiscount that might be used by other parts of the model.
public class Model {
private DoubleProperty discount = new SimpleDoubleProperty();
public DoubleProperty DiscountProperty() {
return discount;
[Code] ....
My Main class has a Textfield that is bound to the discount-property, a button to put the current value of the discount-property to console and a button to call the setDiscount-method ......
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
try {
Model model = new Model();
BorderPane root = new BorderPane();
Scene scene = new Scene(root,100,100);
[Code] .....
By using the bidirectional Binding between the TextField and the discount-Property, the setter in the model is never called and therefore there is no validation of the input value. When calling the setter programatically with the second button, everything works as expected.
I experimented with neglecting the Binding and using ChangeListeners for both the TextField and the discount-Property but only produced infinte loops when both listeners triggered each other alternating.
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Oct 24, 2012
I created a jsf page inside my ADF project. Inside I have a button and a text field. If i press button my servlet is activated. It returns a jasper report in pdf format. Now I would like to display my text field value as a jasper report parameter. So this is a part I don't know how to do. How do I get a value of my text field inside servlet? After this I know how to pass it to report.
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