return type of the variable

amatorIP · by **amatorIP** » Sat Feb 04, 2012 1:04 pm

Hi All!
Please help! Which return type I need in follow function?

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Using java Syntax Highlighting

public static Node getDoc(String wayToFile){
                /*Create a DOM Parser*/
                try {
                        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                        DocumentBuilder builder = factory.newDocumentBuilder();
                        Document document = builder.parse(new FileInputStream(wayToFile));
                        Node root = document.getDocumentElement();
                                                
                /*handle exception creating DocumentBuilder*/
                } catch(ParserConfigurationException parserError){
                        Log.e(TAG, "Parser Configuration Error");
                        parserError.printStackTrace();
                }
                /*handle exception reading data from file*/
                catch (IOException fileException){
                        Log.e(TAG, "File IO Error");
                        fileException.printStackTrace();
                }
                /*handle exception parsing XML*/
                catch(SAXException parceException) {
                        Log.e(TAG, "Error Parsing Document");
                        parceException.printStackTrace();
                }
                return root;
Parsed in 0.034 seconds,  using GeSHi 1.0.8.4

I retriving a error "root cannot be resolved to a variable".

Phyll · by **Phyll** » Sat Feb 04, 2012 6:34 pm

Hi amatorIP,

Make it like this:

Code: Select all: public static Node getDoc(String wayToFile){ /*Create a DOM Parser*/ Node root = null; try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document document = builder.parse(new FileInputStream(wayToFile)); root = document.getDocumentElement(); /*handle exception creating DocumentBuilder*/ } catch(ParserConfigurationException parserError){ Log.e(TAG, "Parser Configuration Error"); parserError.printStackTrace(); } /*handle exception reading data from file*/ catch (IOException fileException){ Log.e(TAG, "File IO Error"); fileException.printStackTrace(); } /*handle exception parsing XML*/ catch(SAXException parceException) { Log.e(TAG, "Error Parsing Document"); parceException.printStackTrace(); } return root; }

Note the root variable is no longer inside the try{} block.

Phyll

return type of the variable

return type of the variable

Re: return type of the variable

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