我在网上下载了一个Utils 地址为 https://www.2cto.com/weixin/201503/382943.html
需要更改的代码为

 int j = 1;
        for (int i = 1; i <= bufferedImages.size(); i++) {

             if (bufferedImages.size()>= 4) {
                if (i <= 2) {
                    g2d.drawImage(bufferedImages.get(i - 1), 50 * i + 4 * i
                            - 50, 4, null);
                } else {
                    g2d.drawImage(bufferedImages.get(i - 1), 50 * j + 4 * j
                            - 50, 58, null);
                    j++;
                }
            } else if (bufferedImages.size() == 3) {
                if (i <= 1) {

                    g2d.drawImage(bufferedImages.get(i - 1), 31, 4, null);

                } else {

                    g2d.drawImage(bufferedImages.get(i - 1), 50 * j + 4 * j
                            - 50, 58, null);

                    j++;
                }

            } else if (bufferedImages.size() == 2) {

                g2d.drawImage(bufferedImages.get(i - 1), 50 * i + 4 * i - 50,
                        31, null);

            } else if (bufferedImages.size() == 1) {

                g2d.drawImage(bufferedImages.get(i - 1), 31, 31, null);

            }

            // 需要改变颜色的话在这里绘上颜色。可能会用到AlphaComposite类
        }

主要是 bufferedImages.size() == 5 ,6,7,8,9 的时候 我的代码应该如何写