membaca clipboard di java

cara membaca clipboard di java
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.Toolkit;

public class TestClipboard
{
    public static void main(String args[]) throws Exception
    {
        Toolkit t = Toolkit.getDefaultToolkit() ;
        Clipboard cb =t.getSystemClipboard();       
        String s = (String) cb.getData(DataFlavor.stringFlavor);
       
        System.out.println(s);
    }
}