java - 如何删除Android字符串中间的空行

Question

String Address[] = mSelectedaddress.split("\\|");
address.setText(
                Address[1] + "\n"
                        + Address[2] + "\n"
                        + Address[3] + "\n"
                        + Address[4]);

Actual Output:

Address 1
Address 2
                => Blank line           
City

Wanted Output:

Address 1
Address 2         
City

如果你能看到我上面的代码，那么在某些情况下 Address[positon] 可能会返回空白文本，如果它是空白的，我该如何删除它。

Answer 1

String adjusted = adress.replaceAll("(?m)^[ \t]*\r?\n", "");