Boolean method is not checking if statment

I'm trying to write boolean method but it doesn't work

   public  boolean addPresent(Present present)
   {
      if(totWeight+present.getWeight()<=maxWeight)
      {
          presents.add(present);
          presents1.add(present);
          return true;

      }
          for(Present pres : presents1)
          {
          totWeight+=pres.getWeight();
          }return false;
   }

It's working if I write this method:

 public  void addPresent(Present present)
  {
       if(totWeight+present.getWeight()<=maxWeight)
      {
          presents.add(present);
          presents1.add(present);
         System.out.println("true");

      }else
      {             System.out.println("false");
      }
          for(Present pres : presents1)
          {
          totWeight+=pres.getWeight();
           }
 }

How should I make boolean method for it?