Exception handling doubt 1

/*
class Test{                     //error: Test.java:10: error: unreported exception IllegalAccessException; must be caught or declared to be thrown  in met();
  public static void met ()throws IllegalAccessException{
      try{
           throw new  IllegalAccessException("demo");
           }
      catch(ArithmeticException e){
          System.out.println("  arithmetic ");
          }
       }
  public static void main(String args[]){
     met();
    }
  }
*/

/*
  class Test{    //error  : unreported exception IllegalAccessException; must be caught or declared to be thrown  in met();
    public static void met ()throws IllegalAccessException{
       throw new  IllegalAccessException("demo");
       }
  public static void main(String args[]){
    try{
         met();
        }
    finally{
      System.out.println("  arithmetic ");
      }
    }
  }
*/