private String getDictionaryItemsInJson(List<DictionaryItem> items) { StringBuilder builder = new StringBuilder(); builder.append("["); for (DictionaryItem item : items) { builder.append("{id:'"); builder.append(item.getId().toString()); builder.append("', value:'"); builder.append(item.getValue()); builder.append("'},"); } if (builder.length() > 1) { builder.deleteCharAt(builder.length() - 1); } builder.append("]"); return builder.toString(); }