import javax.microedition.lcdui.*;/**  * 選項菜單。  * @author SoftStar,嘟嘟熊  * @version 1.0  */public class OptionList    extends List    implements CommandListener {  /**   *	richMan實例   */  private KMRichMan richMan;  /**   * playCanvas 實例   */  private PlayCanvas playCanvas;  /**   * 構造一個對象   * @param kmrichman richman實例   * @param playCanvas playCnavas實例   */  public OptionList(KMRichMan kmrichman,PlayCanvas playCanvas) {    super("選項菜單", 3);    this.richMan = kmrichman;    this.playCanvas = playCanvas;    append("資產狀況", null);    append("股市行情", null);    append("返回游戲", null);    setCommandListener(this);  }  /**   * 處理按鍵   * @param command 不解釋了   * @param displayalbe 不解釋了   */  public void commandAction(Command command, Displayable displayable) {    switch (getSelectedIndex()) {      case 0:        int[] stock = new int[3];        // 計算股票價格        for (int i = 0; i < 3; i++) {          stock[i] = 0;          for (int j = 0; j < 4; j++) {            stock[i] += playCanvas.stock_price[j] * playCanvas.player_stock[i][j][0];          }        }        richMan.showPlayerStatus(playCanvas.player_money[0],                                 playCanvas.player_money[1],                                 playCanvas.player_money[2],                                 stock[0],                                 stock[1],                                 stock[2],                                 playCanvas.countPlayerGround(1),                                 playCanvas.countPlayerGround(10),                                 playCanvas.countPlayerGround(100),                                 playCanvas.countPlayerGround(2) + playCanvas.countPlayerGround(3),                                 playCanvas.countPlayerGround(20) + playCanvas.countPlayerGround(30),                                 playCanvas.countPlayerGround(200) + playCanvas.countPlayerGround(300),                                 playCanvas.countPlayerGround(4),                                 playCanvas.countPlayerGround(40),                                 playCanvas.countPlayerGround(400),                                 playCanvas.player_sequence);        break;      case 1:        richMan.setDisplayToStockList();        break;      case 2:        richMan.setDisplayToPlayCanvas1();        break;    }  }}