Java String TRIM函数不起作用

Question

I am receiving a string from server trailing one or two lines of spaces like below given string.

String str = "abc*******         
          ********";

Consider * as spaces after my string

i have tried a few methods like

str = str.trim();

str = str.replace(String.valueOf((char) 160), " ").trim();

str = str.replaceAll("\u00A0", "");

but none is working. Why i am not able to remove the space?

Answer 1

You should try like this:

str = str.replaceAll("\n", "").trim();

You can observe there is a new line in that string . first replace new line "\\n" with space("") and than trim

Answer 2

You should do:

str = str.replaceAll("\n", "");

In my case use to work the function trim()

Answer 3

试试这个： str = str.replaceAll("[.]*[\\\\s\\t]+$", "");

Answer 4

I have tried your 3 methods, and them all work. I think your question describing not correctly or complete, in fact, a String in java would not like

String str = "abc*******         
      ********";

They must like

String str = "abc*******"         
      + "********";

So I think you should describe your question better to get help.