Storing an absolute pathname into a String

[tiestoycc]

How do I get the absolute pathname of a file to be stored in an array of a String? I will be using a JFileChoose to choose a file, then the absolute pathname of the file will be stored in an array of a String.

I tried to do this with below but it won't work:

int returnVal = fc.showOpenDialog(mainFrame.this);
String[] filePath;
int x = 0;
String name;

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();

                jTextArea1.append("Opening: " + file.getName() + "." + newline + file.getPath() + newline);
                name = new String(file.getName());
                
                filePath[x] = file.getAbsolutePath();
                
                listModel.addElement(name);

It seems like I am unable to get the absolute path and put into the String. Is there any ways to do this? Thanks in advance.

[Norm]

I am unable to get the absolute path and put into the String

I see you doing exactly that in your code: filePath[x] = file.getAbsolutePath();

it won't work:

Can you explain what your problem is?

[tiestoycc]

I see you doing exactly that in your code: filePath[x] = file.getAbsolutePath();

Can you explain what your problem is?

I am getting NullPointerException. It seems like there is a problem with the parsing of values.

[Norm]

What variable is null?

[tiestoycc]

filePath is null. There seemed to be nothing in filePath.

[Norm]

You have defined a variable to point to an array of Strings but you have not defined that array.
String[] anArray = new String[30]; // define an array of 30 elements

[tiestoycc]

hahaha! Was trying to solve the problem for so long... and that was the only problem. sigh... Well, thanks for your help!

Another question, is there any ways to create a dynamic array to store the Strings?

[Norm]

What is a "dynamic" array?
Perhaps an ArrayList would be better if you don't know how many elements are going to be added.

[tiestoycc]

Oh... yea. I'm gonna try ArrayList because I don't know how many elements are there going to be. That is just what I needed.

Is it possible to add String into ArrayList and then take it out as String on the ArrayList? Cause when I am trying to get the element in the ArrayList, it returns as an Object and not as String.

[Norm]

Look at using generics. Go to this site and find Generics:
http://download.oracle.com/javase/tu...ybigindex.html

[tiestoycc]

Thanks for the info! Got it working very well now. Thanks again!