The type of the expression must be an array type but it resolved to BufferedImage

问题

It's being really weird, the error is at textures[x].

The type of the expression must be an array type but it resolved to BufferedImage

What is wrong with the code here?

static BufferedImage textures[][] = new BufferedImage[20][20];

public static void loadTextures()
{
    try 
    {
        //Loads The Image
        BufferedImage textures = ImageIO.read(new URL("textures.png"));

        for (int x = 0; x < 1280; x += 1)
        {
            for (int y = 0; y < 1280; y += 1)
            {
                textures[x][y] = textures.getSubimage(x*64, y*64, 64, 64);
            }
        }

    } catch (Exception e) 
    {
        e.printStackTrace();
    }
}

回答1:

You are reusing the name that you gave to your array for the image that you are planning to parcel into individual elements. You should give it a different name to make it work:

BufferedImage fullImage = ImageIO.read(new URL("textures.png"));

for (int x = 0; x < 1280; x += 1) {
    for (int y = 0; y < 1280; y += 1) {
        textures[x][y] = fullImage.getSubimage(x*64, y*64, 64, 64);
    }
}

回答2:

It looks like an ambiguity going on.. change the local variable name from BufferedImage textures to BufferedImage texture

回答3:

You create a new variable called textures here:

BufferedImage textures = ImageIO.read(new URL("textures.png"));

which is not a 2D array like the static variable. textures[x][y] in the for-loop is referencing this variable, which explains the error. Rename one of them to solve the problem.

By the way this is called variable shadowing.

来源：https://stackoverflow.com/questions/13504225/the-type-of-the-expression-must-be-an-array-type-but-it-resolved-to-bufferedimag

标签

java

compiler-errors

bufferedimage