https://topic.alibabacloud.com/a/java-heap-stack-method-areaclass-variable-member-variable-local-variable_1_27_30246070.html
Java heap, stack, method area/class variable, member variable, local variable
method area: class information, class variables (static variables and constants), methods heap: object, member variable stacks: local variables (1) When the...
class variablejavaheapstackmethod
https://www.redmine.org/issues/14511?tab=properties
Defect #14511: warning: class variable access from toplevel on Ruby 2.0 - Redmine
class variabledefectwarningaccesstoplevel
https://www.thesuperc.com/practice/mathematics/class-5/equations-and-variables/find-variable-expressions-word-problems
Class 5 Find variable expressions: word problems | SuperC Learning
word problemsclassfindvariableexpressions