java - ArrayIndexOutOfBoundsException，同时未访问任何索引

Question

由于某种原因，我收到 ArrayIndexOutOfBoundsException 错误，我没有尝试访问数组的任何元素，我想做的就是设置大小，并通过引用传递 i.getRGB()。

/*
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package Logic;

import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;

/**
 *
 * @author Steven, even(RageZone), Zingzags(PokeCommunity)
 */
public class SpriteSheet {

    private String path;
    private final int size;
    private int[] pixels;

    public static SpriteSheet tiles = new SpriteSheet("/Tilesets/Outside.png", 256);

    public SpriteSheet(String path, int size){
        this.path = path;
        this.size = size;
        pixels = new int[this.size * this.size];
        load();
    }

    public int getPixels(int params){
       return pixels[params];
    }

    public int getSize(){
        return size;
    }

    public int[] getPixels(){
        return pixels;
    }

    private void load(){
        try{
            BufferedImage im = ImageIO.read(SpriteSheet.class.getResource(path));
            int w = im.getWidth();
            int h = im.getHeight();
            im.getRGB(0, 0, w, h, pixels, 0, w);
        } catch(IOException ex){
            ex.printStackTrace();
        }
    }
}

错误:

    Exception in thread "Display" java.lang.ExceptionInInitializerError
    at Logic.Sprite.<clinit>(Sprite.java:16)
    at Logic.Screen.render(Screen.java:46)
    at game.Game.render(Game.java:82)
    at game.Game.run(Game.java:109)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 65536
    at java.awt.image.BufferedImage.getRGB(BufferedImage.java:958)
    at Logic.SpriteSheet.load(SpriteSheet.java:47)
    at Logic.SpriteSheet.<init>(SpriteSheet.java:27)
    at Logic.SpriteSheet.<clinit>(SpriteSheet.java:21)
    ... 5 more

Answer 1

For some reason I am getting the ArrayIndexOutOfBoundsException error, I am not trying to access any of the elements of the array, all I want to do is set the size, and pass by reference to the i.getRGB().

根据 getRGB(...) 的 javadoc方法:

"An ArrayOutOfBoundsException may be thrown if the region is not in bounds. However, explicit bounds checking is not guaranteed."

<小时/>

至于异常的原因，我认为问题是 pixels 数组不够大，无法容纳您尝试提取的图像区域。 size 和您正在阅读的图像的尺寸之间没有明显的相关性。 (但是，目前尚不清楚您在 load 方法中实际尝试执行的操作...)