How to create a String with carriage returns

Question

For a JUnit test I need a String which consists of multiple lines  But all I get is a single lined String  I tried the following       String str           n                      Name  number  address       n                       01 01 12-16 02 12       n                              n                                  I also tried  n r instead of  n  System getProperty  line separator   doesn t work too  it produces a  n in String and no carriage return  So how can I solve that

User · Answer

Do this  Step 1  Your String  String str           n                 Name  number  address       n                   01 01 12-16 02 12       n                          n                              Step 2  Just replace all   n  with   n  the result looks like this  String str           n                  Name  number  address       n                   01 01 12-16 02 12       n                         n                             Notice I ve just put   n  in place of   n   Step 3  Now simply call format    str String format str     That s all you have to do

User · Answer

It depends on what you mean by  multiple lines   Different operating systems use different line separators   In Java   r is always carriage return  and  n is line feed  On Unix  just  n is enough for a newline  whereas many programs on Windows require  r n  You can get at the platform default newline use System getProperty  line separator   or use String format   n   as mentioned in other answers   But really  you need to know whether you re trying to produce OS-specific newlines - for example  if this is text which is going to be transmitted as part of a specific protocol  then you should see what that protocol deems to be a newline  For example  RFC 2822 defines a line separator of  r n and this should be used even if you re running on Unix  So it s all about context

User · Answer

Thanks for your answers  I missed that my data is stored in a List lt String gt  which is passed to the tested method  The mistake was that I put the string into the first element of the ArrayList  That s why I thought the String consists of just one single line  because the debugger showed me only one entry

User · Answer

Try  r n where  r is carriage return  Also ensure that your output do not have new line  because debugger can show you special characters in form of  n   r   t etc

User · Answer

The fastest way I know to generate a new-line character in Java is  String format   n    Of course you can put whatever you want around the  n like   String format  line1 nline2    Or even if you have a lot of lines   String format   s n s n s n s    line1    line2    line3    line4

User · Answer

Try append characters  append   r   append   n    instead of String  append    r  n

[java] How to create a String with carriage returns?

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