java collections stores values or references?
599
Is Java "pass-by-reference" or "pass-by-value"?
91298
What do ref, val and out mean on method parameters?
28328
In C#, why is String a reference type that behaves like a value type?
5724
Why does my ArrayList contain N copies of the last item added to the list?
143851
Where does class, object, reference variable get stored in Java. In heap or in stack? Where is heap or stack located?
44037
Are arrays or lists passed by default by reference in c#?
12565
Can I use a collection initializer for Dictionary entries?
19198
Does assigning objects to null in Java impact garbage collection?
119513
What is the role of the data types inside of  in Java?
33472
MongoDB relationships: embed or reference?
132361
Find references to the object in runtime
22602
Why is == true for some Integer objects?
41428
Java Collections (LIFO Structure)
124961
Do Apex collections implement iterable?
102268
Rule of thumb for choosing an implementation of a Java Collection?
53545
Do I need to synchronize access to immutable types in Java?
98396
How can I get the size of an array, a Collection, or a String in Java?