删除Emacs中的空白块

我经常以这样的代码块结束：

public class CustomFile {

    public String path;
    public String name;





    public CustomFile (String pathToFile, String dbName) {
    path = pathToFile;
    name = dbName;
    }
}

---

我希望能够将光标放在

public CustomFile

上方的行上，并能够删除所有空白，包括但不包括

public String name。是否有允许我执行此操作的命令或宏？
这看起来像是您想要的：

C-x C-o runs the command delete-blank-lines, which is an interactive
compiled Lisp function in `simple.el'.

It is bound to C-x C-o.

(delete-blank-lines)

On blank line, delete all surrounding blank lines, leaving just one.
On isolated blank line, delete that one.
On nonblank line, delete any immediately following blank lines.

正是我想要的。谢谢