import java.io.*;

class ejemplo 
{
    public void analizar()
	{
		try
		{
			
			Process proceso = Runtime.getRuntime().exec("cmd.exe");
			InputStream entrada = proceso.getInputStream();
			BufferedReader str = new BufferedReader(new InputStreamReader(entrada));
			

			/*
			//Primera manera
			OutputStream out2 = proceso.getOutputStream();
			DataOutputStream str3 = new DataOutputStream(out2);
			str3.writeUTF("dir");
			*/
			
			/*
			//Segunda manera
			OutputStream out2 = proceso.getOutputStream();
			BufferedWriter str3 = new BufferedWriter(new OutputStreamWriter(out2));
			str3.write("dir");
			*/
			
			/*
			//Tercera manera
			OutputStream out2 = proceso.getOutputStream();
			Writer str3 = new BufferedWriter(new OutputStreamWriter(out2));
			str3.write("dir");
			*/	
			
			
			String mostrar = str.readLine();
			while(mostrar!=null)
			{
				System.out.println (mostrar);
				mostrar = str.readLine();
			}
				
		}catch(Exception exc)
		{
			System.out.println ("Ocurrio un error");
		}
	}

    public static void main(String[] args) 
    {
        new ejemplo().analizar();
    }
}

  
public void escribir()
    {
    	try 
    	{
    		BufferedWriter sc = new BufferedWriter(new FileWriter("fichero.exe"));
    		sc.write("Escribiendo a fichero.");
    		sc.close();
    
		}
		catch (Exception ex) 
		{
			System.out.println ("Error método escribir");
		}
    }