Java error when reading xml file

Question

I made a FileOutputStream, which saves an arraylist full of String[]'s to an xml file. The problem is, that when I load the file, I can only load it as a String. The Strings are some weird codes likes:

[Ljava.lang.String;@75a7d0f4

I need help to, save (or load) the String[]'s so I can call them probably

And, in the load method, I need to pass all the data to the addSong() method with a loop?

Code:

public class Songs {
List<String[]> songs = new ArrayList<String[]>();

public void addSong(String s, String a, String yt){
    String[] songarray= new String[3];
    songarray[0] = s;
    songarray[1] = a;
    songarray[2] = yt;
    songs.add(songarray);


}
public void editSong(int i, String s, String a, String yt){
    String[] editsongarray = new String[3];
    editsongarray[0] = s;
    editsongarray[1] = a;
    editsongarray[2] = yt;
    songs.remove(i);
    songs.add(i,editsongarray);
}
public void removeSong(int i){
    songs.remove(i);
}

public String[] getList(int i){
    String[] j = songs.get(i);
    return j;
}
public void save() throws FileNotFoundException{
    PrintWriter pw = new PrintWriter(new FileOutputStream("C:\\Applications\\songs.xml"));
    for(String[] x:songs)
        pw.println(x);
        pw.close();
}
public void load()throws FileNotFoundException{
    FileInputStream in = new FileInputStream("C:\\Applications\\songs.xml");
    Scanner scan = new Scanner(in);
    String x = scan.next();
    //String[] x = scan.next(); doesnt works 

    System.out.println(x);

}

}

evanchooly · Accepted Answer · 2014-01-27 21:18:38Z

2

That's the default output when you print an array. If you want to see the actual content use Arrays.toString()

answered Jan 27, 2014 at 21:18

evanchooly

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2 Comments

Oliver Bak Over a year ago

Could be me misunderstanding something. But in my load method, i load the xml file as Strings.. The problem is pretty much i need to convert the String to an array(String[]) , or load the xml file as an array(String[]). Array.toString(), wouldt work on a String, right?? Thanks in advantage, i appreciate it :-)

evanchooly Over a year ago

If you want to parse xml use something like dom4j (easiest) or stax (better for really large xml documents but more complicated)

RP- · Accepted Answer · 2014-01-27 21:32:11Z

1

You can not write the contents in to xml file as just plain strings. You need to follow the xml standards like

<songs>
   <song>song1</song>
   <song>song2</song>
<songs>

Also while reading you need to parse these nodes to extract the songs from the xml. There are quite a few API's to deal with xmls. You need to use them.

Jdom is one of the easy to use parsers. Here is the simple example. You don't need to use the maven and all, you can download the jar from jdom website.

answered Jan 27, 2014 at 21:32

RP-

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