Prevent the space from being inserted when shift-space is pressed : InputMap « Swing Event « Java Tutorial

1. Java Tutorial
2. Swing Event
3. InputMap

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.KeyStroke;

public class Main {
  public static void main(String[] argv) {
    JTextField component = new JTextField(10);

    component.getInputMap(JComponent.WHEN_FOCUSED).put(KeyStroke.getKeyStroke(new Character(' '), 0), "none");

    JFrame f = new JFrame();
    f.add(component);

    f.setSize(300, 300);

    f.setVisible(true);

  }
}