query: null or empty string comparison in java? or Something else?
positive_passages.docid: 126
positive_passages.text: How do I compare strings in Java?
negative_passages.docid: 79477
negative_passages.text: Why is "null" present in C# and Java?
negative_passages.docid: 109282
negative_passages.text: Java comparison with == of two strings is false?
negative_passages.docid: 33398
negative_passages.text: C# difference between == and Equals()
negative_passages.docid: 56535
negative_passages.text: In C#, should I use string.Empty or String.Empty or "" to intitialize a string?
negative_passages.docid: 15097
negative_passages.text: Is there any difference between IS NULL and =NULL
negative_passages.docid: 3265
negative_passages.text: How can I test if a variable is empty or contains only spaces?
negative_passages.docid: 87643
negative_passages.text: what is the time complexity of .equals in java for 2 strings?
negative_passages.docid: 151469
negative_passages.text: What is the difference between null and System.DBNull.Value?
negative_passages.docid: 576
negative_passages.text: How can I check for an empty/undefined/null string in JavaScript?
negative_passages.docid: 54143
negative_passages.text: Why is the default value of the string type null instead of an empty string?
negative_passages.docid: 93804
negative_passages.text: How to check for a Null value in VB.NET
negative_passages.docid: 109927
negative_passages.text: JavaScript null check
negative_passages.docid: 19902
negative_passages.text: Shortcut for "null if object is null, or object.member if object is not null"
negative_passages.docid: 46562
negative_passages.text: Differences in string compare methods in C#
negative_passages.docid: 89714
negative_passages.text: What is the difference between Nullable.HasValue or Nullable != null?
negative_passages.docid: 5512
negative_passages.text: How do I do a case-insensitive string comparison?