about JScrollPane component

[cat cater]

默认情况下按�上，下，左，右�键可以使JScrollPane滚动，我想屏蔽这个功能该如何做啊
usually press "upkey,downkey,leftkey,rightkey" can scroll. I want to lost the function,how i od? thanks everyone.

[cat cater]

who can help me?

[Michael Dunn]

try this

import java.awt.*;
import java.awt.event.KeyEvent;
import javax.swing.*;
 
class Testing extends JFrame
{
  public Testing()
  {
    setLocation(400,300);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JPanel jp = new JPanel(new GridLayout(50,1));
    for(int x = 0; x < 50; x++)
    {
      jp.add(new JLabel("Label "+x+" with longggggggggggggg line"));
      jp.setFocusable(true);//labels need this, otherwise arrow keys will work
    }
    JScrollPane sp = new JScrollPane(jp);
    sp.setPreferredSize(new Dimension(100,150));
    InputMap im = sp.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
    im.put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0), "none");
    im.put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0), "none");
    im.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), "none");
    im.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), "none");
    getContentPane().add(sp);
    pack();
  }
  public static void main(String[] args){new Testing().setVisible(true);}
}

[cat cater]

thanks Michael.