Vertical headers in JTable?

Is there a way to rotate 90º the column headers of a JT开发者_JAVA百科able?

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Check out Darryl's Vertical Table Header Cell Renderer.

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This is little tricky. At first, you need to cast JTable headers to JLabels. It's just like

 ((JLabel)table.getTableHeader()

Then rotate JLabels. It's already answered here on StackOverflow

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Maybe this helps, I haven't tested it though:

class RotatedTableCellRenderer extends JLabel implements TableCellRenderer {  
    protected int m_degreesRotation = -90;  

    public RotatedTableCellRenderer(int degrees) {  
        m_degreesRotation = degrees;  
    }  

    public Component getTableCellRendererComponent(JTable table, Object value,   
        boolean isSelected, boolean hasFocus, int row, int column) {  

        try {  
            this.setText(value.toString());  
        } catch(NullPointerException ne) {  
                this.setText("Nullvalue");  
        }  

        return this;  
    }  

    public void paint(Graphics g) {  
        Graphics2D g2 = (Graphics2D)g;  
        g2.setClip(0,0,500,500);  
        g2.setColor(new Color(60,179,113));  
        g2.setFont(new Font("Arial",Font.BOLD,12));  
        AffineTransform at = new AffineTransform();  
        at.setToTranslation(this.getWidth(), this.getHeight());  
        g2.transform(at);  
        double radianAngle = ( ((double)m_degreesRotation) / ((double)180) ) * Math.PI;  
        at.setToRotation(radianAngle);  
        g2.transform(at);  
        g2.drawString(this.getText(), 0.0f, 0.0f);  
    }  
}  

This is not my own, taken from here