Programming

import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public class RunCommand {

    private static boolean str;

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

        File dir = new File("c:\\Redalert");
        Process proc = Runtime.getRuntime().exec("cmd /c  start dir", null, dir);
        BufferedReader stdInput = new BufferedReader(new InputStreamReader(proc.getInputStream()));

          //  FileWriter fw = new FileWriter("c:\\output.txt");

        while (str = stdInput.readLine() != null) {
            System.out.println(str);

        }
    }
}

String[] cmd_elements = {"ls", "-l"};

Process prcs = Runtime.getRuntime().exec(cmd_elements);

InputStream cmd_output = prcs.getInputStream();