字符串替換-java如何將字符串的所有括號中指定字符替換掉？（正則表達式或者其它方法）

java如何將字符串的所有括號中指定字符替換掉？（正則表達式或者其它方法）

要處理字符串

Medical Care ( Costs Inverse ## agonism ( Costs Inverse ## agonism ) ) Costs ( Inverse ## agonism ) at beta_1 ##adrenergic receptors
替換操作：將字符串中 所有括號 內的 ##替換成 @
處理結果:
Medical Care ( Costs Inverse @ agonism ( Costs Inverse @ agonism ) ) Costs ( Inverse @ agonism ) at beta_1 ## adrenergic receptors
各路高手幫幫忙 （ 正則表達式或者其它方法都行的 ）

最佳回答：

public static void main(String[] args) {
    String s = "Medical Care ( Costs Inverse ## agonism ( Costs Inverse ## agonism ) ) Costs ( Inverse ## agonism ) at beta_1 ##adrenergic receptors";
    String returnValue = "";
    String [] str =   s.split("\\)");

    for (int i = 0; i < str.length; i++) {
        if(" ".equals(str[i])){
            str[i] = ")";
        }

        if(str[i].contains("(")){
            str[i] = str[i].replaceAll("##", "@@")+")";
        }
    }

    s = ArrayUtils.toString(str).replace(",", " ");
    returnValue = s.substring(1, s.length()-1);
   System.out.println(returnValue);
}