title: How to make console menu?
body: <p>So I ask for this, beacous I can´t find the code anywhere I looked for it. 
  I ask how i can make simple console menu. So the console show some options like a b c. User types in console a and option behind a shows. Like calculator when user type a console writes "pleas type number 1" then "pleas type number 2" and the console divide the two numbers and shows same menu like on beginning. Thank anyone who is going to help me.</p>