Run cmd command from java

import java.io.*;

import java.util.*;

public class CmdVerJavaDemo{

BufferedReader x=new BufferedReader(new InputStreamReader(System.in));

Runtime myrun;

Process output;

public static void main(String args[])throws IOException

{

(new CmdVerJavaDemo()).runCmdCommand("dir *.*");

}

public void runCmdCommand(String cmd)throws IOException

{

System.out.println("Your Cmd Command is "+cmd);

myrun=Runtime.getRuntime();

output=myrun.exec("cmd /c "+cmd);

String outStr="";

String fDate="";

String fName="";

x=new BufferedReader(new
InputStreamReader(output.getInputStream()));

for(int i=0;i<=100 && outStr!=null;i++)

{

outStr=x.readLine();

if(outStr==null)

{

System.out.println("File Data has null
.");

}

else

{

System.out.println(outStr);

StringTokenizer strToken=new
StringTokenizer(outStr);

int countT=strToken.countTokens();

if(i>=6)

{

fDate=strToken.nextToken();

fName=strToken.nextToken();

fName=strToken.nextToken();

fName=strToken.nextToken();

fName=strToken.nextToken();

fDate=fDate.replaceAll("/","-");

System.out.println("File Name :"+fName);

System.out.println("File Date :"+fDate);

output=myrun.exec("cmd /c md backup");

output=myrun.exec("cmd /c copy .\\*.* .\\backup");

output=myrun.exec("cmd /c md "+fDate);

File
fileName=new File(fName);

if((fileName.isDirectory()))

System.out.println("File Name :"+fName+" is Directory");

else

{

System.out.println("File Name :"+fName+" is File");

output=myrun.exec("cmd /c copy .\\"+fName+" .\\"+fDate);

}

}

}

}

}

}