How to pass the parameter values to the stored procedure from java code?

I have a stored procedure written in sqlplus as below:
create procedure spInsertCategory (propertyid number, category varchar2, create_user varchar2, create_date date) AS BEGIN Insert into property (propertyid, category,create_user,create_date) values (propertyid , category, create_user, create_date); END spInsertCategory;
I am trying to insert a new row into the database using the stored procedure.
I have called the above procedure in my java code as below:
CallableStatement sp = null;
sp = conn.prepareCall("{call spInsertCategory(?, ?, ?, ?)}");
How should I pass the values [propertyid, category, create_user, create_date) from java to the stored procedure?[i.e., parameters]
Kindly guide me as I am new to java..

Java-Queries wrote:
I have a stored procedure written in sqlplus as below:FYI. sqlplus is a tool from Oracle that provides a user interface to the database. Although it has its own syntax what you posted is actually PL/SQL.

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