Hello All a little List question...

[AnteeN]

Hello All...

File[] files = fd.getSelectedFiles();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < files.length; i++)
{
sb.append(files[i].getPath() + "\n");
list.add(sb.toString());
}

This just gets the file and their paths to a list.

I am trying to extract items from this list with;

String Path = list.getItem(0);

But unfortunately i can not convert the string to a filepath...

which i am going to use in;

RenderedImage image = (RenderedImage)JAI.create("fileload",ImPath);

Is there a way?

i looked at some conversions even with stream one but unfortunately it does not allow as a path...

regards

ömer kaya
METU

[Norm]

i can not convert the string to a filepath...

Please explain the problem
Have you printed out the String to see what it contains?
Very few Strings are valid filepaths.

[Tolls]

What do you mean by "i can not convert the string to a filepath"?
What happens when you use it as a path?

The way you are creating your List is incorrect as well.
Print out the contents of your List after you have filled it and see what I mean.

[al_Marshy_1981]

Are you sure you know what StringBuilders append method does?

StringBuilder (Java Platform SE 6)

[AnteeN]

Hello again sorry for the late response.

"C:\Users\Public\Pictures\Sample Pictures\1296.jpg"

this is the output from;

String Path = list.getItem(0);

printed to the console as;

System.out.println(Path);

String builder is what i used to divide the selection of files with the multi selection. and write them in the list separated from each other. Hope i am using it correctly.

Thanks for a lot of responses.

Waiting.

[Tolls]

And what does list.get(1) contain?
Or list.get(2)?

Because, from that code up there, they are going to be quite different from what you intend.

[AnteeN]

Hello;

They contain same listings as the getitem(0)

just raw paths. as windows understands

nothing more.

kind regards

ömer kaya

[AnteeN]

sorry for not telling but.

Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: "C:\Users\Public\Pictures\Sample Pictures\1296.jpg": File not found.

this is the exception i am getting. the path is valid and the file is there.

thanks a lot.

ömer kaya
METU

[AnteeN]

at javax.media.jai.JAI.createNS(JAI.java:1087)
at javax.media.jai.JAI.create(JAI.java:973)
at javax.media.jai.JAI.create(JAI.java:1408)

if it matters these are the external library exceptions.

[AnteeN]

Hello All;

Found my problem.

I was doing it wrong.

sb.toString makes the item that i add to the list as a string. So that when i try to get the file out of it it takes as string.

when i deleted this and use it as just another object it gets it as a path as originally stated.

so my code was changed like;

if ( status == JFileChooser.APPROVE_OPTION )
{
File[] files = fd.getSelectedFiles(); // Chosen Path's are going to be stored to a array list.
StringBuilder sb = new StringBuilder(); // String Builder is the class for converting the array into divided strings of choice.
for (int i = 0; i < files.length; i++) // Reading the files array
{
// Dividing path strings in respect of selected files.
list.add(files[i].getPath()); // Converting to strings <List.Add accepts only Strings>
}

}
else if (status == JFileChooser.CANCEL_OPTION )
{
System.out.println("Cancel Selected");
}
else
{
System.out.println("Selection Error");
}

And Image Showing as

String ImPath = list.getItem(0);
//ystem.out.println(ImPath);
RenderedImage image = (RenderedImage)JAI.create("fileload",ImPath);
int width = image.getWidth();
int height = image.getHeight();
System.out.println(width);
System.out.println(height);
ScrollingImagePanel panel = new ScrollingImagePanel(image, 512, 512);
Frame window = new Frame("Scrolling Image Panel Example");
window.add(panel);
window.pack();
window.show();

Thanks a lot all...

regards
ömer kaya
METU

[Tolls]

Hello;

They contain same listings as the getitem(0)

just raw paths. as windows understands

nothing more.

kind regards

ömer kaya

That code int he OP does not do that:

import java.util.ArrayList;
import java.util.List;

public class Scratch {

   /**
    * @param args
    */
   public static void main(String[] args) {
      String[] strings = {"First one", "Second one", "Third one"};
      List<String> stringList = new ArrayList<String>();
      StringBuilder sb = new StringBuilder();
      for (String s : strings) {
         sb.append(s);
         stringList.add(sb.toString());
      }
      for (String s : stringList) {
         System.out.println(s);
      }
   }
}

The above produces:
First one
First oneSecond one
First oneSecond oneThird one

So each file path after the first had no hope of being correct.

Anyway, good to see you corrected your problem.

[AnteeN]

Thanks a lot Tolls.

the problem was the file path <As JAVA Knowns "C:\\...\\[filename]" is stored to the list array but i forced to convert it to a string.
So that when i asked for the information it returned to me as string not path of file.
When i deleted the string from it that gave me the right answer.

This was the problem.

Thanks a lot for the interest.

regards
ömer kaya
METU