我正在尝试根据随机整数的值更改我拥有的图像,但是,eclipse 表示 rand 整数需要一个主体。我已经尝试过int rand = random.nextInt(4);但这也行不通。任何帮助将不胜感激。public class GrassTile extends Tile { Random random = new Random(); static BufferedImage texture; int rand; rand = random.nextInt(4); if (rand == 0) { texture = Assets.grass0; } else if(rand == 1) { texture = Assets.grass1; } else if(rand == 2) { texture = Assets.grass2; } else if(rand == 3) { texture = Assets.grass3; } public GrassTile(int id) { super(texture, id); }}谢谢,JavaDev
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