Questions tagged [jframe]
A JFrame is a component and top-level container of the JFC/Swing framework.
jframe
9,979
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How do I code a maze in a java class then display it in a jframe form? [duplicate]
I would like to code a maze on Java Netbeans. I am trying to display a 2d array as a maze on a canvas but I have no idea where to start. Do I code the maze in a java class then call it from the jframe?...
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46
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How to open a new frame when I clicked a button? Is my code a “bad” code? Java GUI Swing
I’m making a frame with numerous buttons inside.
public void actionPerformed(ActionEvent e) {
if(e.getActionCommand().equals("Change Name")){
changeNameGUI.setVisible(true);
...
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0
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1
answer
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how do i make my g.drawline draw ontop of my JTextFields in a JFrame
i am attempting to make a soduku solving java program. i want it to be graphical and graphical isnt an area ive really explored before.first ive created a graphics method to draw all my needed lines. ...
0
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1
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34
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My components in two different panels are too small and don't fit to the frames size, how can I fix this?
I made a JFrame (size: 500 , 600) that uses GridBagLayout to place two JPanels (one using GridLayout and the other using GridBagLayout) on top of each other; however, when I run my JFrame the ...
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2
answers
54
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How do I Get JFrame to Display JPanel Text Content Even When Called by Action Event?
I have a simple JFrame dialog, that should display "Please Wait" message while the main program completes other activities (which may take anywhere from 30 seconds to more than 10 minutes):
...
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19
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Simple animation using a JLabel and ImageIcon throwing an exception
I'm making a simple static animation at the start of my program, and it uses a timer and ImageIcons to work. Here is the code:
int staticChecker = 0;
private void btnStartMouseClicked(java.awt....
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votes
1
answer
59
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Is it possible to connect two different JFrames to one single class?
I make two forms but I have this problem where my second form that will appear after we press a button on the first form could not get the data from the subclass. The plan was I want to only use one ...
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How does JButton call the actionPerformed method?
I was trying to understand exactly how a JButton object works.
I created the below SampleFrame object that extends JFrame.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
...
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43
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Starting X and sometimes Y coordinate of JFrame is displaced
Just recently started playing around more with Swing and right now I am trying to build an Algorythm Visualiser. The array being displayed is displaced. The starting X coordinate is shifted to the ...
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my program still does not recognize txtFechaDev, even though I have the jcalendar 1.4 library
is my first time here, i have a problem in this program, I download the jcalendar 1.4 but the problem is in textFechaDev, it seems that the program txtFechaDev is not declared or there is an error in ...
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Graphics2d on JPanel
I want to make a program in Java that drops a square at the position of your mouse. For that I wanted to draw a grid as background and then add the squares but as soon as I add a new component to the ...
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49
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Issue with object arrays and their usage among frames
I need to find a way to handle the object array to send it to the other frame "Start" I've tried various ways but I can't, I'm just a beginner in the field of OOP, I've tried creating ...
1
vote
1
answer
50
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Image URL syntax
I am trying to make a background image in a java jframe window, but when I try to initialize it, I get a null pointer exception saying the location url I put in is null.
I've tried the following:
...
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Add image as icon for window
this is the code
import javax.swing.*;
public class test {
public static void main(String[] args) {
System.out.print("Starting up...");
createWindow();
}
private ...
-1
votes
1
answer
28
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Java KeyPress is getting the value before the key press, not the value during the key press
I'm writing a Java program that generates 5 random letters when user press G. After pressing G, if user press S, the next pressed key would be compared to the random generated letters to check if it ...
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