CODEWITHSUNDEEP
javaswingjlistlistmodel
rasweeny
rasweeny

Reputation: 11

jlist listModel arrayOutOfBounds at 20 items

I have a DefautListModel which reads file names from a directory. Whenever I have more than 19 files I get: 

java.lang.ArrayIndexOutOfBoundsException: Index 20 out of bounds for length 20

I tried ensureCapacity() for the listModel. I tried setVisibleRowCount() for the Jlist

Any suggestions?

    // get the file list
    String[] newList = getFileList();
    // create a list model
    listModel = new DefaultListModel<>();
    listModel.ensureCapacity( 1000 );
    for (String s : newList) {
      listModel.addElement(s);
    }

    // add the model to the jlist
    recipeList = new JList(listModel);
    recipeList.setName( "recipes" );
    recipeList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
    recipeList.setLayoutOrientation(javax.swing.JList.VERTICAL);
    recipeList.setVisibleRowCount( recipeList.getModel().getSize() );
    JScrollPane toScroll = new JScrollPane( recipeList,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER );

Upvotes: 1

Views: 20

Answers (0)

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