CODEWITHSUNDEEP
javaswingnetbeansfilesystemsjlist
newSpringer
newSpringer

Reputation: 1028

How to populate JList with .java and .class files

I'm creating an application that gets a list of .java and .class files from a chosen directory and places them in a JList. I am using Netbeans 7.1.2.

At the moment i have the files being retrieved and being placed into a List<File>. I have all the files in the list printing out but i cannot add them to the JList the is in my form.

this is how i am adding the files to the list

List<File> filesInDirectory = new ArrayList<>(); 

public List listFilesForFolder(final File folder) {

    for (final File fileEntry : folder.listFiles()) {
            if (fileEntry.isDirectory()) {
                listFilesForFolder(fileEntry);
            } else {
                        if(fileEntry.toString().toUpperCase().endsWith(".CLASS") || fileEntry.toString().toUpperCase().endsWith(".JAVA")){
                            filesInDirectory.add(fileEntry);
                            System.out.println(fileEntry.getName());
                        }
            }
        }

    return filesInDirectory;
}

Does anybody know how to do this?

Upvotes: 1

Views: 3042

Answers (2)

mastaH
mastaH

Reputation: 1267

DefaultListModel model = new DefaultListModel();
for(File f : yourFileList) {
    model.addElement(f);
}

yourList.setModel(model);

Upvotes: 5

Hovercraft Full Of Eels
Hovercraft Full Of Eels

Reputation: 285450

Create a DefaultListModel object and add the files to this, then have the JList use this model. For more on this, please have a look at the JList Tutorial. You will likely want to create a ListCellRenderer so your file text displays properly.

Upvotes: 4

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