JMenuItem and ActionListener

Question

Haveing problem with my JMenuItem and ActionListener, I'm trying to make a JMenuItem that can select numbers of players in a game but my PlayerAlt[i].addActionListener(players); code gives me an error that "players cannot be resolved to a variable"

    String[] Players = { "1", "2", "3", "4" };
    JMenu pmenu = new JMenu("Players");
    final JMenuItem[] PlayerAlt = new JMenuItem[Players.length];
    for (int i = 0; i < PlayerAlt.length; i++) {
      PlayerAlt[i] = new JMenuItem(Players[i]);
      pmenu.add(PlayerAlt[i]);
      PlayerAlt[i].addActionListener(players);
    }
    ActionListener players = new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        for (int i = 0; i < PlayerAlt.length; i++) {
          if (e.getSource() == PlayerAlt[i]) {
        Gamerside.add(s1);
          }
        }
      }
    };

Answer 1

The variable players is declared after you want to use it. Thus it can not be resolved.

Move the players declaration above the loop

ActionListener players = new ActionListener() {
      ......
};
for (int i = 0; i < PlayerAlt.length; i++) {
    .....
    PlayerAlt[i].addActionListener(players);
}

Answer 2

In your example, players is declared after you try to use it (two lines later), so it is does not exist the moment you try to use it.

For clarification:

int b = 4;
b += a; //Error, a does not exist yet..
int a = 2; //...because it is declared here