Cannot Read The Output From Windows Command

I have the following classes
{
package cmd;
import java.io.IOException;
public class CMD {

[Code]....
 
I cannot seee the output from wndows command : del *.* and the java class execution does not finished. I I will replace the above command with the dir command then the output of the command is visible. how to modify the above clases in order to parse the output of the del *.* ? note that the above example is important because I am developping a tool and it is mandatory for that tool to parse the output from a windows batch command.