How can I throw an exception in Clojure? -

I want to throw an exception and the following is:

  ")   
 Although it is being ignored.   
 
 
  
  ("Some text" for throwing) is required to be wrapped   
 or  
  ( Some exceptions (exception "some text"))   
 You can also set an attempt / hold / ultimately block:  
  (mydivision defn [xi ] (Try (/ xi) (aggregate (E. println "Done.")))   
 RPL session:  
  & gt; User = & gt; (MyDivision 4 2) done 2 users => (MyVivision 4.0) Exception Message: Divide by Zero