public class Test {

    public static void main(String[] args) {
        System.out.println("-------透明度百分比对应的十六进制-------");
        for (int i = 0; i <= 100; i++) {
            System.out.println("百分比：" + i + "%" + "\t十六进制：" + getHexString(i));
        }
    }

    private static String getHexString(int i) {
        float temp = 255 * i * 1.0f / 100f;
        int round = Math.round(temp); //四舍五入
        String hexString = Integer.toHexString(round);
        if (hexString.length() < 2) {
            hexString = "0" + hexString; //原博文此处是错的
        }
        return hexString.toUpperCase();
    }
}