JList中，当鼠标移动到某一项上时就高亮显示，该怎么做这个事件？

Question

JList中，当鼠标移动到某一项上时就高亮显示，该怎么做这个事件？

Answer 1

Point lastPoint;
jlist.addMouseListener(new MouseAdapter(){
    @Override public void mouseEntered(MouseEvent e){
        lastPoint = e.getPoint();
    }
};
jlist.addMouseMotionListener(new MouseMotionAdapter(){
    @Override public void mouseMoved(MouseEvent e){
        int lastIndex = jlist.locationToIndex(lastPoint);
        Point current = e.getPoint();
        int currentIndex = jlist.locationToIndex(current);
        if (currentIndex == lastIndex) return;        ... // highlight
        lastPoint = current;
    }
};
就是这个想法。

Answer 2

hisList.addMouseMotionListener(new MouseMotionAdapter(){
    @Override public void mouseMoved(MouseEvent e){
        Point current = e.getPoint();
        int currentIndex = hisList.locationToIndex(current);
        hisList.setSelectedIndex(currentIndex);
    }
});

Answer 3

jList.setSelectionBackground(Color.**);
jList.setSelectionForeground(Color.**);
试试吧，就知道这些