package RuntimeTest.RuntimeTest;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;/** * Hello world! * */public class App {    public static void main( String[] args ) throws IOException    {        Runtime r=Runtime.getRuntime();        Process p=r.exec("cmd /c S: && dir && mkdir hello");//执行多条语句，用&&连接        InputStream is=p.getInputStream();        BufferedInputStream bis=new BufferedInputStream(is);                byte b[]=new byte[1024];        String line;                //~        File f=new File("S:\\f.txt");        OutputStream os=new FileOutputStream(f);        BufferedOutputStream bos=new BufferedOutputStream(os);                //~                while(-1!=bis.read(b)){            line=new String(b,"GBK");//这里不用gbk的话，控制台打印的是乱码......愁~            bos.write(b);//将结果写到txt里            System.out.println(line);        }                bis.close();        is.close();        bos.close();        os.close();            }}