Background color to selected item in JList not working
<p>Why my selected item background not changing? I surely know that i press list item because my System.out.println says my Current selection and showing id of selected item. No errors no nothing just not working. Why ?   </p>

<pre><code> Object[] tablen = sqltable.toArray();
 JList list;
 list = new JList(tablen);                     
 list.addListSelectionListener(new ListSelectionListener(){
  @Override
  public void valueChanged(ListSelectionEvent e) {
   int idx = list.getSelectedIndex();
   setOpaque(true);
    if (idx != -1){
    //list.setSelectionBackground(Color.lightGray);
    // list.setSelectionForeground(Color.lightGray);
    setForeground(Color.red);
    setBackground(Color.BLUE);
    setBackground(list.getSelectionBackground());
    setForeground(list.getSelectionForeground()); 
    System.out.println("Current selection: " + tablen[idx]);
   }else{
     setForeground(Color.red);
     setBackground(Color.BLUE);
     setBackground(list.getBackground());
     setForeground(list.getForeground());
     System.out.println("Please choose a language."); 
        }
  }                     
});
   list.setCellRenderer(new ListCellRenderer() {
   @Override
   public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
     String[] val = (String[]) value;
     return new JLabel(val[0]);
    }                           
});
</code></pre>