如果我使用mouselistener具有标签的数组列表，那么单击标签时如何获得索引？

Question

I'm making a card game. It has an arraylist of Jlabels corresponding to each card the player has.

When the card jlabel is clicked, how do I get the index of the individual JLabel, so I can call a playcard() method that plays the card using the given index?

JLabel temp = new JLabel(icon);
            temp.setBounds(new Rectangle(new Point(shift, 550), temp.getPreferredSize()));
            temp.addMouseListener(this);
            currentdeck.add(temp);
//for loop that adds each jlabel to currentdeck

public void mousePressed(MouseEvent arg0) 
    {
        JLabel label = (JLabel)arg0.getSource();
        //int i = (how would I get the index)?

if(MouseInfo.getPointerInfo().getLocation().getX()>=label.getX()&&MouseInfo.getPointerInfo().getLocation().getY()>=label.getY())
        {
            UNO.playcard(int i);
        }
    }

Answer 1

It seems like you want to use the indexOf() method of ArrayList. https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html#indexOf(java.lang.Object)