How edit File to MyFile [closed]

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I have a program, it uses a standard class File. The ArrayList. I need to replace your class MyFile and really want to change the collection ArrayList to List .

class MyFile

public class MyFile extends File {

    public MyFile(File f) {
        super(f, "");
    }

    Boolean isNetworkFile = false;



}

example function in programm

public void addFile(JFrame frame) {
    FileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
    FileChooser.setFileFilter(filter);
    FileChooser.setMultiSelectionEnabled(true);
    int fileValid = FileChooser.showOpenDialog(frame);
    if (fileValid == javax.swing.JFileChooser.CANCEL_OPTION) {
        return;
    }
    else if(fileValid == javax.swing.JFileChooser.A开发者_运维问答PPROVE_OPTION) {
        File[] file = FileChooser.getSelectedFiles();
        listSong.addAll(Arrays.asList(file));
    }
}

How do it?

---

Your question is difficult to understand. But I'll take a guess at what you mean. It looks like you'll need a loop, to construct MyFile instances from File instances:

File[] files = FileChooser.getSelectedFiles();
MyFile[] myfiles = new MyFile[files.length];
for (int i = 0; i < files.length; i++) {
    myfiles[i] = new MyFile(files[i]);
}

As for the collection, an ArrayList is a List. You can just do:

List<Blah> list = new ArrayList<Blah>();