Ahmed :
imagine the i have three classes
Feedback
Customer
Supplier
now i have a pagination code that it's only for feedback class
public ArrayList<Feedback> generatePage(int currentPage,Class paginator_type)
{
int startItem=currentPage*ITEMS_PER_PAGE;
int numOfData=ITEMS_PER_PAGE;
ArrayList<Feedback> pageData=new ArrayList<>();
if (currentPage == LAST_PAGE )
{
for(int i=startItem;i<startItem+ITEMS_REMAINING;i++){
String ss[] = all_data[i].split(" ");
pageData.add(new Feedback(ss[5],ss[3],ss[4],ss[0]));
}
}
else
{
for (int i=startItem;i<startItem+numOfData;i++)
{
String ss[] = all_data[i].split(" ");
pageData.add(new Feedback(ss[5],ss[3],ss[4],ss[0]));
}
}
return pageData;
}
now i need the arraylist type to change depanding of what type of objects iam adding to it i need to make only one method that accepts any type of array list , how can i do it ? and how i can make a parameter that accepts a class type for example :
call method :
makeArrayList(1,Reservation);
method :
public void makeArrayList(int i , Class class) <- how i can declare the parameter
ArrayList<class> aa = new ArrayList<>();
am0awad :
You can define an interface and implement in the classes that you want or abstract class and extend it.
example
public interface IBase { }
public class Feedback implements IBase {}
public class Customer implements IBase {}
public class Supplier implements IBase {}
and in this method change class to be:
public void makeArrayList(int i , IBase parent)
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