How can I properly center a JPanel ( FIXED SIZE ) inside a JFrame?

Question

Hi all! I\'m trying to solve an -apparently- simple problem, but I cannot fix it. I\'m working on a sample application with Java/Swing libraries; I have a JFrame and a JPan

Answer 1

You can do this. I had to make a chess game, and I wanted the chess piece piece to always go in the center of a cell which was a JlayeredPane:

private void formMouseReleased(java.awt.event.MouseEvent evt) {
    // TODO add your handling code here:
    if (jl != null)
    {
        jl.setLocation(evt.getX()+10, evt.getY()+10);
        Component com = findComponentAt(evt.getPoint());
        if (com instanceof JPanel)
        {
            // System.out.println("Yes, it's a jpanel");
            ((JPanel)com).add(jl);
            ((JPanel)com).validate();
        }
    }
}