Java 调用二维数组

我还没有完成这段代码，它只是一个模板，我还没有完成对代码的格式化。在另一个类中调用数组的消息部分时遇到问题。我基本上有一个if/else语句，当roomId=some#时，它将从数组中输出与#相关的消息。我只是无法理解如何调用数组。Eclipse在“grid”下的if/else语句中向我抛出一个错误，表示grid无法解析为变量。我还尝试在语句所在的方法中调用数组方法。谢谢大家的帮助

    public class location{
        public int roomId;
        public String name, message;

        public location() {
          roomId = 0;
        }
        public location(String name, int roomId, String message){
          this.name = name;
          this.roomId = roomId;
          this.message = message;
        }
        public void LocArray() {
          location[][] grid = new location[4][4];
          grid [1][0] = new location("LABORATORY", 0, "You're in the lab.");
          grid [2][0] = new location("DUNGEON", 1, "You entered the dungeon.");
          grid [3][0] = new location("COURTYARD ENTRANCE",2,"You have left the dungeon out the backdoor. Either head east and search the courtyard maze, or travel north back to the dungeon");
          grid [3][1] = new location("FIRST PATH", 3,"You have now entered the courtyard, either continue east or move north.");
          grid [3][2] = new location("DEADEND", 4,"You have reached a deadend that has a Magic Shop. Go inside and explore it.");
          grid [3][3] = new location ("MAGIC SHOP", 5, "Search around the Magic Shop and see what there is. When you're done searching continue through the maze.");
          grid [2][1] = new location("SECOND PATH",6,"Search the surroundings for items that will help you get into the locked room, then keep moving.");
          grid [2][2] = new location("END MAZE", 7, "You've made it to the end of the courtyard. There seems to be a cave in the distance; go check it out.");
          grid [1][2] = new location("CAVE",8,"Explore the cave to find the remaining items that will lead to your freedom.");
          grid [0][0] = new location("EXIT",9,"This room will lead to your freedom, but you need the three essential items that will open this door.");
        }
}

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grid

变量在

locArray

方法中声明

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您不能在另一个方法中或在另一个类中的另一个方法中调用它。

“我还没有完成代码的格式化”。如果您边走边做会容易得多：）

grid

是

LocArray（）

中的一个局部变量。您不能从其他任何地方引用它。更严重的是，您在

位置的
LocArray（）
函数中声明了
grid
，因此无法从其他任何地方访问它。让它成为一个成员变量（
public location[][]grid；
在顶部），然后用
location.grid
调用它。非常感谢Jon，我在上一篇文章中得到了一个新的格式化，同时这是我的第一个Java类，所以我对这个很陌生，哈哈
 //This is a different class called projectTwo.
 while (stillPlaying) {
    Scanner scan = new Scanner(System.in);
    userInput = scan.nextLine();
    if (roomId == 0){
        if (userInput.equals("n")) {
            System.out.println(grid[2][0].message);
            roomId = 1; // Moves user from location 0 to 1

        }