Quick java udf question

Hi sorry for this completely stupid question but the below piece of code I am trying to dissect and understand.
I understand the first line I am creating a new global container but the second line I am not so sure what the (integer) would be for. Is this meant to be a variable or a return type? What could that possibly be for I mean a type in parenthesis after the equals sign.
GlobalContainer gc = container.getContainer();
Integer counter = (Integer) gc.getParameter("counter");
Thank you for your help.

GlobalContainer is a container object stores values and can be retrieved by UDF during runtime. This GlobalContainer stores values and can be accessed by any UDF in the same namespace. This is similar to class variable or static variable of java class.
In your case, It has a parameter which is set as ("counter", Integer) . Basically it is a key value pair and very similar to Hashtable in java.
Example
setParameter(String str , Object Integer);
>What could that possibly be for I mean a type in parenthesis after the equals sign.
typecast to integer in paranthesis, because we store the value here as Integer object.
Integer counter = (Integer) gc.getParameter("counter");
expecting return type is Integer.
Also refer this [link |global container;for further refereence

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