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omaza1990
Asked: 2020-01-04 10:41:46 +0800 CST 2020-01-04 10:41:46 +0800 CST

How to add a 'placeholder' in a JTextField

  • 772

I would like to have a text box ( jTextField) and that when starting the form in JAVA SWING in that text box an "informative" text appears on what to fill in that field. And that when clicking or inserting the first character that informative text disappears. I tried with setToolTipTextbut what it does is when you hover over the jTextFieldreport, it doesn't add it to the Text box.

I tried with nombre.setText("Informativo"); but that way it has the default value, and when writing it adds it to the one it had. This is not useful for me.

java

2 Answers

  1. Best Answer

    What you want is some kind of placeholder . One solution is to use TextPromptRob Camick's class, which is very simple to use. Example:

    ❍ Code:

    public static void main(String[] args) {
    JTextField textField = new JTextField(10);
    TextPrompt placeholder = new TextPrompt("Apellido Paterno", textField);
    placeholder.changeAlpha(0.75f);
    placeholder.changeStyle(Font.ITALIC);
    JOptionPane.showMessageDialog(null, textField);
}

    ❍ Output:

    img1

    img2

    • 16
    1. Download the plugin: http://plugins.netbeans.org/plugin/70043/placeholder
    2. import com.placeholder.PlaceHolder;

    3. In..initComponents();

      PlaceHolder holder = new PlaceHolder(tuCampoDeText, "lo que quieras que se muestre");
    • 3