ArrayList how to add to specific index code example
Example 1: 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<Integer> list = new ArrayList<Integer>();
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 2: arraylist adding at index
public void add(int index, E element)
// adding element 25 at third position
arrlist.add(2,25);