add element at index arraylist code example

Example 1: java insert into arraylist

ArrayList str=new ArrayList();
str.add(0);
str.add(1);
 // Result = [0, 1]
    
str.add(1, 11);
 // Result = [0, 11, 1]

Example 2: arraylist insert at position

//Insert a value by using arrayName.add(index, value)
//Will not remove current element at index. Will simply move all elements to
//the right.
import java.util.ArrayList;
public class main{
  public static void main(String[] args){
   ArrayList list = new ArrayList();
   	list.add(0);
    list.add(1);
    list.add(2);
    list.add(3);
    list.add(4);
    list.add(5);
    list.add(0, 100);
    
    //enhanced for loop will print all elements of the ArrayList
    for(int element : list){
    System.out.print(list + ", ");
      }
    //Expected output: "100, 0, 1, 2, 3, 4, 5, "
  }
  
}

Example 3: arraylist adding at index

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

Example 4: arraylist add at index

arrlist.add(2,25);

Example 5: append to arraylist by index java

arrlist.add(2,25);
// .add(index, content)