How Do I Force Close A Program In Java

 private static void restrict ()
    {
        try {
            String strOutput="", strError="";
            Process p = Runtime.getRuntime().exec(new String[]{"cmd", "/c", "tasklist /svc"});
           BufferedReader stdInput= new BufferedReader(new InputStreamReader(p.getInputStream()));
           BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));
           
        while (strOutput != null) {
if(strOutput.toLowerCase().contains("winword.exe"))
{
    System.out.println("found specified file");
    Runtime.getRuntime().exec("taskkill /im winword.exe");
    System.out.println("killed.");
}
if (strOutput.length() < 1) {
} else {
System.out.println(strOutput);
}

strOutput = stdInput.readLine();
}

strError = stdError.readLine();

if (strError != null) {
System.out.println("An error occured");

while (strError != null) {
System.out.println(strError);
strError = stdError.readLine();
}
}
        } catch (IOException ex) {
            System.out.println(ex.getMessage());
            
        }
    }