Java 輸出全部希臘字母

public class xlzm{

      public static void main(String args[]){
                     
           char firstL='α',lastL='ω';                         
           int First=(char)firstL,Last=(char)lastL;
                   
           for(int i=First;i<=Last;i++)
           {
           System.out.println(" "+char(i));}
                                       
     }

}