Java tutorial
import java.util.Scanner; public class MainClass { public static void main(String args[]) { Scanner conin = new Scanner(System.in); int count = 0; System.out.println("Enter numbers to average."); while (conin.hasNext()) { if (conin.hasNextDouble()) { System.out.println(conin.nextDouble()); count++; } if (count == 3) { System.exit(0); } } } }