How to remove everything from an ArrayList in Java but the first element

Question

I am new to java programming, been programing in php so I\'m used to this type of loop:

int size = mapOverlays.size();
for(int n=1;n

        

Answer 1

int size = mapOverlays.size();
for(int n=0;n

In java, if mapOverlays is list then it start with 0 as a first index.So n=0 in for loop.