java中，使用jacob操作word，我现在想用空格替换掉word中以“$”开始，并且以“$”结束的字符串，怎么做啊

Question

也就是在find中的操作：
 public boolean find(Dispatch selection,String toFindText) {
         // 从selection所在位置开始查询
         Dispatch find = Dispatch.call(selection,"Find").toDispatch();
         // 设置要查找的内容
         Dispatch.put(find,"Text",toFindText);
         // 向前查找
         Dispatch.put(find,"Forward","True");
         // 设置格式
         Dispatch.put(find,"Format","True");
         // 大小写匹配
         Dispatch.put(find,"MatchCase","True");
         // 全字匹配
         Dispatch.put(find,"MatchWholeWord","True");
         // 查找并选中
         return Dispatch.call(find,"Execute").getBoolean();
     }