How to find how many objects are live for a particular class at a particular instance?
7130
how many instances for a class exists at runtime in java
143783
What is the best way to get the count/length/size of an iterator?
121064
How to get class instances in Ruby?
146996
Get all instances of a class in PHP
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How to find all the subclasses of a class given its name?
76164
How to create local total counters?
33183
How enumerate all classes with custom class attribute?
101578
How to find each instance of a class in Ruby
92757
Java Reflection: get instances of a given class found by entering its name?
49455
Total number of items defined in an enum
60768
How many String objects will be created
62924
What's the best way to get a Class object for an array type?
97127
Made one instance of a class equal to another. – How to cancel that?
27022
The difference between Classes, Objects, and Instances
79929
How can I count how many times a node appears in a view?
37247
Finding what methods a Python object has
99385
How to list all collections and their objects?