arraylist add at index

1import java.util.ArrayList;
2public class ArrayListAddMethodExample
3{
4   public static void main(String[] args)
5   {
6      // creating an empty ArrayList with initial capacity
7      ArrayList<Integer> al = new ArrayList<Integer>(6);
8      al.add(12);
9      al.add(14);
10      al.add(16);
11      al.add(18);
12      al.add(20);
13      // adding element 15 at fourth position
14      al.add(3, 15);
15      for(Integer number : al)
16      {
17         System.out.println("Number: " + number);
18      }
19   }
20}

1/* add(index, item to add); */
2ArrayList<String> languages = new ArrayList<String>(); 
3languages.add("PHP");
4languages.add("JAVA");
5languages.add("C#");
6languages.add(2, "RUBY"); /* at index 2, add RUBY*/
7ArrayList<int> numbers = new ArrayList<int>(); 
8numbers.add(9);
9numbers.add(14);
10numbers.add(2);
11numbers.add(1, 15); /* at index 1, add 15*/
12/*
13  After Execution:
14  languages => PHP JAVA RUBY C#
15  numbers => 9 15 14 2
16*/

1//Insert a value by using arrayName.add(index, value)
2//Will not remove current element at index. Will simply move all elements to
3//the right.
4import java.util.ArrayList;
5public class main{
6  public static void main(String[] args){
7   ArrayList<Integer> list = new ArrayList<Integer>();
8   	list.add(0);
9    list.add(1);
10    list.add(2);
11    list.add(3);
12    list.add(4);
13    list.add(5);
14    list.add(0, 100);
15    
16    //enhanced for loop will print all elements of the ArrayList
17    for(int element : list){
18    System.out.print(list + ", ");
19      }
20    //Expected output: "100, 0, 1, 2, 3, 4, 5, "
21  }
22  
23}

1public void add(int index, E element)
2// adding element 25 at third position
3arrlist.add(2,25);

1//public void add (int index , E element)  
2

1arrlist.add(2,25);