package com.day15.collection;
import java.util.ArrayList;
import java.util.List;
public class ListOne {
public static void main(String[] args) {
List l=new ArrayList();
l.add("a");
l.add("b");
l.add("c");
l.add( "d");
l.add(1, "e");
System.out.println(l);//[a, e, b, c, d]
Object obj=l.remove(1);
System. out.println(obj);//e, return the deleted element
for(int i=0;i<l.size();i++) {
System.out.print(l.get(i));/ /abcd List collection can be obtained by get(int index)
}
}
}