/*
Get Sub List of Java ArrayList Example
This Java Example shows how to get sub list of java ArrayList using subList
method by providing start and end index.
*/
import java.util.ArrayList;
import java.util.List;
public class GetSubListOfJavaArrayListExample {
public static void main(String[] args) {
//create an ArrayList object
ArrayList arrayList = new ArrayList();
//Add elements to Arraylist
arrayList.add("1");
arrayList.add("2");
arrayList.add("3");
arrayList.add("4");
arrayList.add("5");
/*
To get a sub list of Java ArrayList use
List subList(int startIndex, int endIndex) method.
This method returns an object of type List containing elements from
startIndex to endIndex - 1.
*/
List lst = arrayList.subList(1,3);
//display elements of sub list.
System.out.println("Sub list contains : ");
for(int i=0; i< lst.size() ; i++)
System.out.println(lst.get(i));
/*
Sub List returned by subList method is backed by original Arraylist. So any
changes made to sub list will also be REFLECTED in the original Arraylist.
*/
//remove one element from sub list
Object obj = lst.remove(0);
System.out.println(obj + " is removed from sub list");
//print original ArrayList
System.out.println("After removing " + obj + " from sub list, original ArrayList contains : ");
for(int i=0; i< arrayList.size() ; i++)
System.out.println(arrayList.get(i));
}
}
/*
Output would be
Sub list contains :
2
3
2 is removed from sub list
After removing 2 from sub list original ArrayList contains :
1
3
4
5
*/
