/**
*Output:
*/
import java.util.Scanner;
public class MainClass {
public static void main(String args[]) {
Scanner conin = new Scanner(System.in);
int count = 0;
double sum = 0.0;
System.out.println("Enter numbers to average.");
while (conin.hasNext()) {
if (conin.hasNextDouble()) {
sum += conin.nextDouble();
count++;
} else {
String str = conin.next();
if (str.equals("done"))
break;
else {
System.out.println("Data format error.");
return;
}
}
}
System.out.println("Average is " + sum / count);
}
}
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