Make the console wait for a user input to close
I'd like to add that usually you'll want the program to wait only if it's connected to a console. Otherwise (like if it's a part of a pipeline) there is no point printing a message or waiting. For that you could use Java's Console like this:
import java.io.Console;// ...public static void waitForEnter(String message, Object... args) { Console c = System.console(); if (c != null) { // printf-like arguments if (message != null) c.format(message, args); c.format("\nPress ENTER to proceed.\n"); c.readLine(); }}
The problem with Java console input is that it's buffered input, and requires an enter key to continue.
There are these two discussions:Detecting and acting on keyboard direction keys in Java and Java keyboard input parsing in a console app
The latter of which used JLine to get his problem solved.
I personally haven't used it.