ArrayList.java

import java.util.ArrayList;
import java.util.Collections;
 
class ArrayLists {
   public static void main(String args[]) {
       ArrayList<Integer> list = new ArrayList<Integer>();
       ArrayList<String> list2 = new ArrayList<String>();
       ArrayList<Boolean> list3 = new ArrayList<Boolean>();
      
       //add elements
       list.add(1);
       list.add(3);
       list.add(4);
       list.add(5);
       System.out.println(list);
 
       //to get an element
       int element = list.get(0); // 0 is the index
       System.out.println(element);
 
       //add element in between
       list.add(1,2); // 1 is the index and 2 is the element to be added
       System.out.println(list);
 
       //set element
       list.set(0,0);
       System.out.println(list);
 
       //delete elements
       list.remove(0); // 0 is the index
       System.out.println(list);
 
       //size of list
       int size = list.size();
       System.out.println(size);
 
       //Loops on lists
       for(int i=0; i<list.size(); i++) {
           System.out.print(list.get(i) + " ");
       }
       System.out.println();
 
       //Sorting the list
       list.add(0);
       Collections.sort(list);
       System.out.println(list);
   }
}