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what does this means while((s+ss) == null) ?

 
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i think that the string has a null value by default ....so if i run this code what i was expecting that while loop should keep repeating and printing "hi" on the command line but that didnt happen
because of the statement
now please explain me what s+ss returns or null or any different values
 
naved momin
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naved momin wrote:

i think that the string has a null value by default ....so if i run this code what i was expecting that while loop should keep repeating and printing "hi" on the command line but that didnt happen
because of the statement
now please explain me what s+ss returns or null or any different values


i got that
 
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