向 Java 数组中添加超过 1 个事物

Question

对于这个程序，我应该添加两种不同的'mirrors'（正斜线和反斜线在我的游戏中代表镜像），即'/'和'\'。我已成功将第一组斜线添加到我的迷宫数组中，但我似乎无法弄清楚如何同时添加两个不同的斜线。

public static void placeMirrors(){
    Scanner input = new Scanner(System.in);

    // Promopting user for how many mirrors they want
    System.out.print("\nHow many mirrors do you want in your maze?");
    System.out.print("The maximum number of mirrors you can have is 8. The minimum is 2.\n");
    int usersMirrors = input.nextInt();

    // Deploying mirrors randomly within the maze
    for (int i = 1; i <= usersMirrors;) {
        int x = (int)(Math.random() * numRows);
        int y = (int)(Math.random() * numCols);

        // *FIGURE OUT ADDING BOTH SETS AT ONCE THING*
        if((x >= 0 && x < numRows) && (y >= 0 && y < numCols) && (maze[x][y] == ".")) {
            maze[x][y] = "\";
            i++;
        }
    }
    System.out.println("Mirrors placed.");
}

Answer 1

我认为您只需要在循环内添加第二个 if。我假设您要成对添加“镜子”。

// Deploying mirrors randomly within the maze
for (int i = 1; i <= usersMirrors;) {
    int x = (int)(Math.random() * numRows);
    int y = (int)(Math.random() * numCols);

    if((x >= 0 && x < numRows) && (y >= 0 && y < numCols) && (maze[x][y].equals( "." ) )) {
        maze[x][y] = "\";
        i++;
    }

    x = (int)(Math.random() * numRows);
    y = (int)(Math.random() * numCols);

    if((x >= 0 && x < numRows) && (y >= 0 && y < numCols) && (maze[x][y].equals( "." ) )) {
        maze[x][y] = "/";
    }
}

向 Java 数组中添加超过 1 个事物

Adding more than 1 thing into a Java Array

java

arrays

multidimensional-array