# while

<code>
(while(expression)
   (do
      codeblock))
</code>

{{ https://www.tutorialspoint.com/clojure/images/while_statement.jpg }}

<code>
(ns clojure.examples.hello
   (:gen-class))

;; This program displays Hello World
(defn Example []
   (def x (atom 1))
   (while ( < @x 5 )
      (do
         (println @x)
         (swap! x inc))))
(Example)
</code>

#### output

<code>
1
2
3
4
</code>