java swing JTextField set PlaceHolder [duplicate]

Question

I created a JTextField and now I want to set the placeholder on that JTextField, but I don't know how? Please help. Here is my code:

JTextField database=new JTextField("Enter Data Base Name"); database.setPreferredSize(database.getPreferredSize()); database.setText(""); 

Answer 1

Try this class:

package playground;  import java.awt.*;  import javax.swing.*; import javax.swing.text.Document;  @SuppressWarnings("serial") public class PlaceholderTextField extends JTextField {      public static void main(final String[] args) {         final PlaceholderTextField tf = new PlaceholderTextField("");         tf.setColumns(20);         tf.setPlaceholder("All your base are belong to us!");         final Font f = tf.getFont();         tf.setFont(new Font(f.getName(), f.getStyle(), 30));         JOptionPane.showMessageDialog(null, tf);     }      private String placeholder;      public PlaceholderTextField() {     }      public PlaceholderTextField(         final Document pDoc,         final String pText,         final int pColumns)     {         super(pDoc, pText, pColumns);     }      public PlaceholderTextField(final int pColumns) {         super(pColumns);     }      public PlaceholderTextField(final String pText) {         super(pText);     }      public PlaceholderTextField(final String pText, final int pColumns) {         super(pText, pColumns);     }      public String getPlaceholder() {         return placeholder;     }      @Override     protected void paintComponent(final Graphics pG) {         super.paintComponent(pG);          if (placeholder == null || placeholder.length() == 0 || getText().length() > 0) {             return;         }          final Graphics2D g = (Graphics2D) pG;         g.setRenderingHint(             RenderingHints.KEY_ANTIALIASING,             RenderingHints.VALUE_ANTIALIAS_ON);         g.setColor(getDisabledTextColor());         g.drawString(placeholder, getInsets().left, pG.getFontMetrics()             .getMaxAscent() + getInsets().top);     }      public void setPlaceholder(final String s) {         placeholder = s;     }  } 

Answer 2

JTextField searchText; 

...

In constructor:

searchText = new JTextField("Search"); searchText.setForeground(Color.GRAY); searchText.addFocusListener(new FocusListener() {     @Override     public void focusGained(FocusEvent e) {         if (searchText.getText().equals("Search")) {             searchText.setText("");             searchText.setForeground(Color.BLACK);         }     }     @Override     public void focusLost(FocusEvent e) {         if (searchText.getText().isEmpty()) {             searchText.setForeground(Color.GRAY);             searchText.setText("Search");         }     }     });