import java.io.*;

import java.nio.charset.Charset;

public class Summer{

public void Exec(String cmd) throws Exception {

InputStream stream = (new ProcessBuilder(new String[]{"cmd.exe", "/c", cmd})).start().getInputStream();

InputStreamReader streamReader = new InputStreamReader(stream, Charset.forName("gbk"));

BufferedReader bufferedReader = new BufferedReader(streamReader);

StringBuffer buffer = new StringBuffer();

String line = null;

while((line = bufferedReader.readLine()) != null) {

buffer.append(line).append("\n");

}

throw new Exception(buffer.toString());

}

}