ArrayList In Java Example
Chapter:
Collections
Last Updated:
08-04-2016 04:03:59 UTC
Program:
/* ............... START ............... */
import java.util.ArrayList;
public class JavaArrayListExample {
public static void main(String args[]) {
ArrayList<String> obj = new ArrayList<String>();
/* This is how elements should be added to the array list */
obj.add("Harry");
obj.add("Sanju");
obj.add("JO");
obj.add("Steve");
obj.add("Anu");
/* Displaying array list elements */
System.out.println("Currently the array list has following elements:" + obj);
/* Add element at the given index */
obj.add(0, "Rahul");
obj.add(1, "Justin");
/* Remove elements from array list like this */
obj.remove("Steve");
obj.remove("Harry");
System.out.println("Current array list is:" + obj);
/* Remove element from the given index */
obj.remove(1);
System.out.println("Current array list is:" + obj);
}
}
/* ............... END ............... */
Output
Currently the array list has following elements:[Harry, Sanju, JO, Steve, Anu]
Current array list is:[Rahul, Justin, Sanju, JO, Anu]
Current array list is:[Rahul, Sanju, JO, Anu]
Notes:
-
ArrayList is a resizable-array implementation of the List interface.
- Implements all optional list operations, and permits all elements, including null.
Tags
Collection, ArrayList, Java