How can i get the console output generated by a exe file?

Question

without using a redirect to file (">", ">>")

Answer 1

Process p = Runtime.getRuntime().exec("executable.exec");

BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));

String line;
while ((line = input.readLine()) != null) {
  System.out.println(line);
}