query: Check Boolean if null
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 129374
negative_passages.text: How do I set a Boolean field with "yes" and "no" values?
negative_passages.docid: 146642
negative_passages.text: Using an if statement to check if a div is empty
negative_passages.docid: 124471
negative_passages.text: Comparing nullable column values using "IS NULL" versus "= NULL"
negative_passages.docid: 38241
negative_passages.text: How do I check for nulls in an '==' operator overload without infinite recursion?
negative_passages.docid: 140738
negative_passages.text: Does setting Java objects to null do anything anymore?
negative_passages.docid: 89714
negative_passages.text: What is the difference between Nullable.HasValue or Nullable != null?
negative_passages.docid: 63854
negative_passages.text: How do boolean operators work in 'if' conditions?
negative_passages.docid: 60338
negative_passages.text: Null vs. False vs. 0 in PHP
negative_passages.docid: 150773
negative_passages.text: Is there a boolean literal in SQLite?
negative_passages.docid: 15435
negative_passages.text: how to check if $1 and $2 are null?
negative_passages.docid: 83354
negative_passages.text: Nullable types: better way to check for null or zero in c#
negative_passages.docid: 126231
negative_passages.text: How can I manage the onslaught of null checks?
negative_passages.docid: 120071
negative_passages.text: Checking for a null int value from a Java ResultSet
negative_passages.docid: 24759
negative_passages.text: How do I use the conditional (ternary) operator?
negative_passages.docid: 29684
negative_passages.text: How to check if an object is nullable?
negative_passages.docid: 131882
negative_passages.text: Default value of 'boolean' and 'Boolean' in Java