网格世界为Cols数分配变量

时间:2011-12-03 21:30:06

标签: java

我很难为网格上的列数分配变量。我在实例化cols变量时收到错误。任何人都可以帮助我吗?

public void act()
    {

        Location place = getLocation();
        Grid<Actor> gr = getGrid();
        int cols = gr.getNumCols;
        if (place.getCol() + 1 < cols)
                moveTo(new Location(place.getRow(), place.getCol() + 1));
        else
                moveTo(new Location(place.getRow(), 0));

这是我收到的错误消息。

F:\Lab III Car and Teleporter\Car Project\Car.java:54: error: cannot find symbol
        int cols = gr.getNumCols;
                     ^
  symbol:   variable getNumCols
  location: variable gr of type Grid<Actor>
1 error

Process completed.

1 个答案:

答案 0 :(得分:1)

  

int cols = gr.getNumCols;

你错过了这里的副词。

这一行应该是(假设实际上有方法getNumCols()):

  

int cols = gr.getNumCols();