Add to stack from ArrayList (Java) -

I have an ArrayList that is pre-defined with hardcoded values. How do I add it to the stack? The idea is to show the Stack class pop, push, peak function.

  ArrayList & lt; String & gt; Al = New Arrestist & lt; String & gt; (); Al.add ('a'); Al.add ("b"); Al.add ('C'); Stack & LT; String & gt; St = new stack & lt; String & gt; (); St.push (al); ** // It does not seem to work. Do I have to loop it somehow? ** System.out.println (st);   
 Thanks!  
  
 
 
 Like many collection sections, a method provides:  
  St.addAll (al)