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    <p>I think you meant to say JPanel. You can add a custom mouseListener and handle mouse clicks, drags and mouse releases and then resize the panel programmaticaly.</p> <p>This will demonstrate this. Note that the jframe does NOT resize automatically with the JPanel. To make the effect more visible i painted the panel red and added a beveled border :</p> <pre><code>import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Point; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionAdapter; import javax.swing.BorderFactory; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.border.BevelBorder; @SuppressWarnings("serial") public class ResizablePanel extends JPanel { private boolean drag = false; private Point dragLocation = new Point(); public ResizablePanel() { setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED)); setPreferredSize(new Dimension(500, 500)); final JFrame f = new JFrame("Test"); addMouseListener(new MouseAdapter() { @Override public void mousePressed(MouseEvent e) { drag = true; dragLocation = e.getPoint(); } @Override public void mouseReleased(MouseEvent e) { drag = false; } }); addMouseMotionListener(new MouseMotionAdapter() { @Override public void mouseDragged(MouseEvent e) { if (drag) { if (dragLocation.getX()&gt; getWidth()-10 &amp;&amp; dragLocation.getY()&gt;getHeight()-10) { System.err.println("in"); setSize((int)(getWidth()+(e.getPoint().getX()-dragLocation.getX())), (int)(getHeight()+(e.getPoint().getY()-dragLocation.getY()))); dragLocation = e.getPoint(); } } } }); f.getContentPane().setLayout(new BorderLayout()); f.getContentPane().add(this,BorderLayout.CENTER); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.pack(); f.setVisible(true); } public static void main(String[] args) { new ResizablePanel(); } public void paintComponent(Graphics g) { g.setColor(Color.red); g.fillRect(0, 0, getWidth(), getHeight()); } } </code></pre>
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    1. POMaking a JPanel manually resizable
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    1. USSavvas Dalkitsis
    1. USSavvas Dalkitsis
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    1. COThat is way over the top! A simple `JSplitPane` will get the job done.
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    2. COi know. i just answered his question.
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    3. COIt is an interesting solution though.
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