public void handleAddInputButton() {        
        if(inputView.getInputList().getSelectedIndex() != -1){
            String symbol = (String)inputView.getInputList().getSelectedValue();
            if (symbol.equals("Blank Symbol")) symbol = "|_|";
            int cell = inputView.getSlider().getValue();            
            inputView.getInputLabels(cell-1).setText(symbol);
            if(cell < 31){
                inputView.getSlider().setValue(cell+1);
            }           
        }       
    }