android - Java doesn't work with regex \s, says: invalid escape sequence -


I want to replace all the spacing characters with "ss" with one "+" and all "ß". It works well for "ß", but somehow eclipse will not let me use \ s for a white space. I tried "\ t" instead, but it does not work either .. I get the following error:

Invalid save sequence (valid ones are \ b \ t \ n \ f \ r \ "\ '\)

< P> This is my code: 

  Try {string temp1 = from.getText (). ToString (); start_from = temp1.replaceAll ("ß", "ss"); start_from = start_from .replaceAll ("\ s", "+ +  
 Thanks in advance!    
 
 Why does not this work? Is it Android, Eclipse or what? 
 
 Thanks in advance!

You need to avoid slash 

  start_from = start_from.replaceAll (" \\ s "," + ");

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