onlydigitkeylistener.java

some of the image proceeing samples using java

package frame.listener;

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class OnlyDigitKeyListener extends KeyAdapter {
    
    public void keyTyped(KeyEvent e) {
        if (!Character.isDigit(e.getKeyChar())) {
            e.consume();
        }
    }
}