Boolean method creates exception
49
What is a NullPointerException, and how do I fix it?
131761
Boolean expressions in Java
63854
How do boolean operators work in 'if' conditions?
17030
Why is Java's boolean primitive size not defined?
29621
Using makeObjectsPerformSelector:withObject: with a false boolean
23774
Boolean difference removes wrong part
125900
Defining "boolness" of a class in python
60420
Can constructors throw exceptions in Java?
109951
How to convert String object to Boolean Object?
52336
Cleanest way to toggle a boolean variable in Java?
75918
how to get true or false using execute() in Java Statement
57712
error on overriding a bool abstract method
46484
Can't cast int to bool
90115
How can I list the nodes for which a Boolean value is FALSE or NULL?
94669
Boolean Evaluation in Apex?
155686
What is a reason of placing boolean or null before comparison operator?
122660
How does using the try statement avoid a race condition?