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Thread: GUI user input error message

  1. #1
    Junior Member
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    Default GUI user input error message

    I need help implementing the below code. It currently is the code for a search bar. User enters in keywords and then it matches it against the recipe, returning true if so. It then displays the recipes matching in the interface. However, I want to implement an error message for invalid input. Currently with the below code it just brings up the error regardless, I added a break, but then it removed all the content from the interface. else if(recipe.foundWords(keys)) =! true) //do stuff ? is another option I tried.
    Obviously not the result I'm wanting.

                for(CakeRecipe recipe : recipeSet.getAllCakeRecipes()) 
                {
                    if(recipe.foundWords(keys)) 
                    {
                        searchRecipe.add(recipe);
                    }
                    else
                    {
                        JOptionPane.showMessageDialog(this,"No recipe containing search words found.", "Error!",
                                                        JOptionPane.ERROR_MESSAGE);
                    }
     
                }

    Suggestions?


  2. #2
    Super Moderator jps's Avatar
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    Default Re: GUI user input error message

    The snippet looks ok..
    Post a SSCCE

  3. #3
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    Default Re: GUI user input error message

    Quote Originally Posted by jps View Post
    The snippet looks ok..
    Post a SSCCE
    The code runs and what not. However, right or a wrong keyword match still displays the error message. If wrong, it iterates 10 times (10 recipes in the array list) and then brings up a blank interface without showing any recipes. If it is right - the match, it iterates 10 times and then displays the correct recipe.

    I need to break from the iteration, somehow. The break only stops the iteration, BUT invalid input = no recipes on the interface (which should still have all the recipes) and if it's correct input = no recipe match cos it obviously breaks where it isn't receiving the code to display the recipes.

    /**
         * Searches the cakes using the search string
         * @param searchString
         * list of keywords to be searched in a cake recipe
         */
        private void searchAll(String searchString) 
        {
            if(searchString.isEmpty())
            {
                createCenterPanel();
            }
            else 
            {
                ArrayList<CakeRecipe> searchRecipe = new ArrayList<>();
                centerPanel.removeAll();
                String[] keys = searchString.split(" ");
     
                for(CakeRecipe recipe : recipeSet.getAllCakeRecipes()) 
                {
                    if(recipe.foundWords(keys) != true) 
                    {
                        JOptionPane.showMessageDialog(this,"No recipe containing search words found.", "Error!",
                                                        JOptionPane.ERROR_MESSAGE);
     
                    }
                    else
                    {
                       searchRecipe.add(recipe); 
                    }
                    break;
                }
                Collections.sort(searchRecipe);

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