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POMake circle and then move circle on mouse dragged event
 

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  1. POMake circle and then move circle on mouse dragged event
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    <p>How to draw circle on mouse dragged event, and then how to move that circle on mouse dragged event in Java?</p> <p>My code is below.</p> <pre><code>import java.awt.*; import java.awt.event.*; import javax.swing.*; class r extends JPanel { public int x1, x2, y1, y2, r, w, h,xDist,yDist; public static boolean flag = false, pressFlag = false; public r() { setBackground(Color.WHITE); addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent m) { // pressFlag = true; if (r &gt; (int) Math.sqrt(Math.abs(m.getX() - x1) * Math.abs(m.getX() - x1) + Math.abs(m.getY() - y1) * Math.abs(m.getY() - y1))) { flag = true; yDist=xDist=x2 = y2 = 0; } else { x1 = y1 = 0; r=x2 = y2 = 0; x1 = m.getX(); y1 = m.getY(); } repaint(); } public void mouseReleased(MouseEvent m) { w = x2 - x1; h = y2 - y1; r = (int) Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)); flag = false; } }); addMouseMotionListener(new MouseMotionAdapter() { public void mouseDragged(MouseEvent m) { if (flag &amp;&amp; (x2!=0 &amp;&amp; y2!=0)) { xDist=(m.getX()-x2); yDist=(m.getY()-y2); } x2 = m.getX(); y2 = m.getY(); repaint(); } }); } public void paintComponent(Graphics g) { super.paintComponent(g); if (flag) { x1=x1+xDist; y1=y1+yDist; g.drawOval(x1, y1, w, h); } else { g.drawOval(x1, y1, x2 - x1, y2 - y1); } } } public class q extends JFrame { public static void main(String[] args) { JFrame jFrame = new JFrame(); jFrame.setSize(300, 300); jFrame.add(new r()); jFrame.setVisible(true); jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } } </code></pre>
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    1. USAndrew Thompson
    1. USJay
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    1. COTerrible naming conventions there!
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      1. POMake circle and then move circle on mouse dragged event
      1. USadarshr
    2. COya,but i just modified that code so.in my code first i draw circle and then move that circle on mouse dragged event. but it will not move exactly like in cursor.so what i have to do ?
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      1. POMake circle and then move circle on mouse dragged event
      1. USJay
    3. COWhat is not working? I just tried your code and it kind of works.
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      1. POMake circle and then move circle on mouse dragged event
      1. USGuillaume Polet
 

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