可以从JList中获取所有商品吗？

Question

I know it is possible to get all selected Items from a JList with:

leftlist.getSelectedValues();

But is it possible to get all Items and not only the selected ones?

Answer 1

You need to use getModel() and getSize() to catch the length of the JList . Also you need a loop to iterate through the indexes to get elements( getElementAt() ).

Example:

for(int i = 0; i< jList.getModel().getSize();i++){
    System.out.println(jList.getModel().getElementAt(i));
}

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You are right, you can get selected values from jList.getSelectedValues() . Also it is possible to get multiple selected elements in JList by jList.getSelectedValuesList() or listen for events on the list's ListSelectionModel . Read the documentation for How to Use Lists .

Multiple selection demo from oracle .