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  • e779. 获得JList中的已选项

    The following methods return the indices of the selected items:

        // To create a list, see e774 创建JList组件
        
        // Get the index of all the selected items
        int[] selectedIx = list.getSelectedIndices();
        
        // Get all the selected items using the indices
        for (int i=0; i<selectedIx.length; i++) {
            Object sel = list.getModel().getElementAt(selectedIx[i]);
        }
        
        // Get the index of the first selected item
        int firstSelIx = list.getSelectedIndex();
        
        // Get the index of the last selected item
        int lastSelIx = list.getMaxSelectionIndex();
        
        // Determine if the third item is selected
        int index = 2;
        boolean isSel = list.isSelectedIndex(index);
        
        // Determine if there are any selected items
        boolean anySelected = !list.isSelectionEmpty();
    

    The following methods return the selected item objects:

        // Get the first selected item
        Object firstSel = list.getSelectedValue();
        
        // Get all selected items without using indices
        Object[] selected = list.getSelectedValues();
    
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  • 原文地址:https://www.cnblogs.com/borter/p/9596138.html
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