From which version JVM starts supporting Object bindings in collections.

Question

from which version JVM starts supporting Object bindings in collections.
private ArrayList<String> arr = new ArrayList();
this will bind String objects to arr, nothing else will be stored.
which version of JVM should I confirm, before using this feature!!!
please comment.

Answer 1

thanks MLRon!!!
They are called "generics", not "bindings". In any case, you need Java 1.5 (also known as Java 5.0).Can generics be used anywhere, or only with collections.
for eg:-
public class Abc {
public Abc(Object obj) {
if(obj instanceOf String)
doSomething;
if(Obj instanceOf Xyz)
doSomething;
while creating Abc instance can I use this:-
Abc<String> abc = new Abc("abc");
and could we also do this:-
Abc<String[]> abc = new Abc(new String[5]);
and what exception does generics generate, if we don't obey them.
for eg:-
Abc<String> abc = null;
abc=new Abc(new Xyz);
and should generics code be kept in try catch block!!!
please guide me!!!