Simple code somthings wrong plz check them:)

Question

code 1:
import java.awt.*;
class Yo {
public static void main (String[] arg) {
String s;
double i;
System.out.print("Translate to euro! Input the swedish money: "); System.out.flush();
s = myIn.readLine();
i = Double.parseDouble(s);
System.out.println(i, "SEK blir" + i*9.15781 + "euro" );
code 2:
class Halt {
public static void main (String[] arg) {
System.out.print("Halt! Who goes there?"); System.out.flush();
String s = myIn.readLine();
System.out.println("You may pass " + s + "!");
I think the errors are similar to eachother.. plz tell me whats wrong with the "myIn" thing:)

Answer 1

why not import Scanner and use that to get user input? all you would have to do is this:
import java.util.Scanner
//blah blah blah
//create the following object before you call it
Scanner myln = new Scanner (System.in);
//ask for user input
double i = myln.nextDouble();
//end output