Keyboard,cursor question.

when the cursor in the textArea,how to forbit(ignore) the keyboard input,
and how locate the cursor's position,(for example i press a button,
then will show some text in the current cursor's position)
Thank in advance.

Add a keylistener to your textarea and consume all keypresses you do not want. Something on the line of this:
public class numericTextField
    extends javax.swing.JTextField {
public numericTextField() {
    super();
    this.addKeyListener(new java.awt.event.KeyAdapter() {
      public void keyTyped(java.awt.event.KeyEvent e) {
        char c = e.getKeyChar();
        if (!((Character.isDigit(c) ||
               (c == java.awt.event.KeyEvent.VK_BACK_SPACE) ||
               (c == java.awt.event.KeyEvent.VK_DELETE)))) {
          getToolkit().beep();
          e.consume();
}Hope this helps.
Kisses,
Mink

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