class SizerPanel extends javax.swing.JPanel {

    private float avgSize;
    private DecimalFormat formatter;
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel labelSize;
    private javax.swing.JLabel sizeLabel;
    // End of variables declaration//GEN-END:variables

    /**
     * Creates new form SizePanel
     */
    public SizerPanel() {
        initComponents();
        formatter = new DecimalFormat();
        formatter.setMaximumFractionDigits(2);
    }

    public float getAvgSize() {
        return avgSize;
    }

    public void setAvgSize(float avgSize) {<FILL_FUNCTION_BODY>}

    /**
     * This method is called from within the constructor to initialize the form. WARNING: Do NOT modify this code. The content of this method is always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {
        java.awt.GridBagConstraints gridBagConstraints;

        jLabel1 = new javax.swing.JLabel();
        labelSize = new javax.swing.JLabel();
        sizeLabel = new javax.swing.JLabel();

        setLayout(new java.awt.GridBagLayout());

        jLabel1.setFont(jLabel1.getFont().deriveFont((float) 10));
        jLabel1.setText(org.openide.util.NbBundle.getMessage(SizerPanel.class, "SizerPanel.jLabel1.text")); // NOI18N
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(0, 4, 0, 0);
        add(jLabel1, gridBagConstraints);

        labelSize.setFont(labelSize.getFont().deriveFont((float) 10));
        labelSize
            .setText(org.openide.util.NbBundle.getMessage(SizerPanel.class, "SizerPanel.labelSize.text")); // NOI18N
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 0, 4);
        add(labelSize, gridBagConstraints);

        sizeLabel.setFont(sizeLabel.getFont().deriveFont((float) 10));
        sizeLabel
            .setText(org.openide.util.NbBundle.getMessage(SizerPanel.class, "SizerPanel.sizeLabel.text")); // NOI18N
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 2;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 0, 3);
        add(sizeLabel, gridBagConstraints);
    }// </editor-fold>//GEN-END:initComponents
}

        this.avgSize = avgSize;
        if (avgSize == -1) {
            sizeLabel.setText("NaN");
        } else {
            String str = formatter.format(avgSize);
            if (!str.equals(sizeLabel.getText())) {
                sizeLabel.setText(str);
            }
        }
    
<methods>public void <init>() ,public void <init>(java.awt.LayoutManager) ,public void <init>(boolean) ,public void <init>(java.awt.LayoutManager, boolean) ,public javax.accessibility.AccessibleContext getAccessibleContext() ,public javax.swing.plaf.PanelUI getUI() ,public java.lang.String getUIClassID() ,public void setUI(javax.swing.plaf.PanelUI) ,public void updateUI() <variables>private static final java.lang.String uiClassID