Namit's Electro Carta

Tabbing in and out of an editable JComboBox seems to be really quirky. First we need to disable the default focus traversal keys for the JComboBox editor. editor.setFocusTraversalKeysEnabled(false); Then we add a KeyListener as below : editor.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_TAB: int n = e.getModifiers(); if (n > 0) { comboBox.transferFocusBackward(); } else { comboBox.getEditor().getEditorComponent().transferFocus(); } e.consume(); break; } } }); Notice that to tab forward, we are using the editor component and to tab backward we are using the combobox directly. Any...

To convert an ImageIcon to a Base64 encoded string, we first need to convert the ImageIcon to a BufferedImage. The BufferedImage then needs to be converted to a ByteArray using a ByteArrayOutputStream. Then using a Base64 encoder, we can convert the ByteArray to a Base64 String. Particularly useful when trying to save an image loaded into a JLabel  to the database. To get the image from the JLabel, we need to get the ImageIcon from the JLabel using getIcon(); import com.itextpdf.text.pdf.codec.Base64; import java.awt.image.BufferedImage; import java.io.ByteArrayOutputStream; import javax.imageio.ImageIO; import java.awt.Graphics; private String ConvertImageIconToBase64String(ImageIcon ii) { // Create a buffered image of the size of the original image icon BufferedImage image = new BufferedImage(ii.getIconWidth(), ii.getIconHeight(), BufferedImage.TYPE_INT_RGB); // Create a graphics object to draw the image Graphics g = image.createGraphics(); // Paint the icon on ...