awt

I've seen code of drag and drop . Question1: how can we move image inside dropped panel (using mouse pointer) after image will be dropped. (destination of image, I want to be where where I release mouse. and then to change location too (using mouse will be better. or using buttons - but using mouse is better) Question2: how can I change location after dropping end? p.s I want here image to component. first I drag and drop component. then change location using mouse pointer (move it). here is code: import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.GridBagLayout; import

I'm creating a graphical front-end for a JBox2D simulation. The simulation runs incrementally, and in between the updates, the contents of the simulation are supposed to be drawn. Similar to a game except without input. I only need geometric primitives to draw a JBox2D simulation. This API seemed like the simplest choice, but its design is a bit confusing. Currently I have one class called Window extending JFrame , that contains as a member another class called Renderer . The Window class only initializes itself and provides an updateDisplay() method (that is called by the main loop), that

How can I check that JButton is pressed? I know that there is a method that its name is "isEnabled" So I try to write a code to test. this code have 2 Jbuttons which are "Add" Button and "Checkout" button. the code will show the "Add button is pressed" message when I press "Checkout" button after I press "Add" button but If the "Add" Button is not pressed before the "Checkout" Button is pressed, the code will show the "Add Button is not pressed" message. Here the code: final JButton btnAdd = new JButton("Add"); btnAdd.addActionListener(new ActionListener() { public void actionPerformed

The game I'm trying to create is snake and so far I've figured out how to use paint(Graphics g) a bit of JPanel , mouse listener and now I'm trying to create a rectangle that will move across the screen and use key bindings or key listener, but I have no idea how I should go about this. Here's my code so far, it has 2 parts. The first part is called snake2 because if I don't know what I'm doing I make the same program with different things. Snake used frame, but Snake2 uses JPanel (looks better…) import java.awt.*; //required for MouseListener import java.awt.event.*; //requied for Graohics

I'm on the 8th chapter (Methods, Constructors, and Fields) of my Java methods book and I'm having a problem with one of my exercises. The provided code is Temperature.java import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.text.DecimalFormat; public class Temperature extends JApplet implements ActionListener { private JTextField displayF, displayC; private static DecimalFormat displayFormat = new DecimalFormat("0.0"); public void init() { Container c = getContentPane(); c.setBackground(Color.white); c.setLayout(new GridLayout(2, 2, 10, 0)); c.add(new JLabel("

I have a JOptionPane: JOptionPane.showMessageDialog(null, text); The text is a sting: String text = "Hello world." What I want to do is change the color of the text, specifically a single word, lets say 'Hello'. SO what I've tried is: String t1 = "Hello"; String t2 = "world." Font serifFont = new Font("Serif", Font.BOLD, 12); AttributedString as = new AttributedString(t1); as.addAttribute(TextAttribute.FONT, serifFont); as.addAttribute(TextAttribute.FOREGROUND, Color.red); JOptionPane.showMessageDialog(null, as+t2); I'm not familiar with attributedtext() and this wont work. It does this: "java

I draw in my JComponent some curves, etc .. with Graphics G ( not 2D ). Now I want to use the scroll wheel of my mouse to zoom in and out. Any tracks ? I heard talk about a BuferredImage ? There are a few considerations you need to take into account... The end result will depend on what you want to achieve. If you are drawing curves using the Graphics2D API, it might be simpler to simply scale the coordinates each time the component is rendered. You will need to make sure that any changes in the scale are reflected in the preferred size of the component itself. You could also render the

I'm converting my old java app from swing to javafx and I'm running into a problem. I'm using the following code to capture screenshots: public ScreenCapper() { ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); gs = ge.getScreenDevices(); try { robot = new Robot(gs[gs.length-1]); } catch (AWTException e) { LOGGER.getInstance().ERROR("Error creating screenshot robot instance!"); } } public Color capture() { Rectangle bounds; mode = gs[0].getDisplayMode(); bounds = new Rectangle(0, 0, mode.getWidth(), mode.getHeight()); //...... } This works fine when running the application under Windows.

This is a follow-up to my previous question. I've simplified things as much as I could, and it still doesn't work! Although the good thing I got around using getGraphics() . A detailed explanation on what goes wrong here is massively appreciated. My suspicion is that something's wrong with the the way I used addMouseListener() method here. EDIT completely rewrote the code. Still does not work properly though. import java.awt.Color; import java.awt.Graphics; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import javax.swing