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How do I add an element and get an element in an ArrayList at specified index in Java ?.

Program to demonstrate how to add an element at specified index of java ArrayList object using add method in Java

package com.hubberspot.example;

import java.util.ArrayList;

public class ArrayListExample {

   public static void main(String[] args) {
 // Create an ArrayList Object of raw type
 ArrayList list = new ArrayList();

 // Add elements to it
 list.add(3); // adds at index 0
 list.add(2); // adds at index 1
 list.add("String Object"); // adds at index 3
 list.add(new Object()); // adds at index 4

 System.out.println("ArrayList displayed using index : ");
 System.out.println("----------------------------------------");

 for(int i = 0; i < list.size(); i++){
  System.out.println(list.get(i));
 }

 System.out.println("----------------------------------------");

 // add elements at position already used 
 list.add(0, 1); // inserts at index 0
 list.add(1, 2); // inserts at index 1
 list.add(2, 5); // inserts at index 2
 list.add(3, new Object()); // inserts at index 3
 list.add(4, "new string"); // inserts at index 4

 // Instead of overriding the values at indexes it shifts
 // old values by one index higher 
 // Output below displays the truth ... 

 System.out.println();
 System.out.println("ArrayList after using previous index : ");
 System.out.println("----------------------------------------");

 for(int i = 0; i < list.size(); i++){
  System.out.println(list.get(i));
 }

 System.out.println("----------------------------------------");

   }

}


Output of the program : 


 
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