blank : Java Glossary

by Roedy Green ©1996-2008 Canadian Mind Products
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blank: A string containing only blank characters i.e x.length() != 0 && x.trim().length() == 0 , e.g. " " . This definition excludes the empty string "" . One of the most common sources of error in Java programs comes from confusing the three different flavours of void strings: blank, empty and null.
empty
intern
literal
null
void

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