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package arrayList;

import java.util.ArrayList;

public class ArrayListBasic {

public static void main(String[] args) {

ArrayList<Integer> arr = new ArrayList<Integer>();

arr.add(1);

arr.add(2);

arr.add(3);

arr.add(4);

System.out.println(arr);

arr.add(1, 5);

System.out.println(arr);

arr.remove(1);

System.out.println(arr);

System.out.println(arr.get(1));

System.out.println(arr.size());

System.out.println(arr.contains(3));

System.out.println(arr.indexOf(3));

System.out.println(arr.isEmpty());

arr.clear();

System.out.println(arr);

System.out.println(arr.isEmpty());

ArrayList<Object> arr2 = new ArrayList<>();

arr2.add(1);

arr2.add("Hello");

arr2.add(3.14);

System.out.println(arr2);

}