/*
Reverse order of all elements of Java ArrayList Example
This java example shows how to reverse the order of all elements of Java ArrayList
using reverse method of Collections class.
*/
import java.util.ArrayList;
import java.util.Collections;
public class ReverseOrderArrayListExample {
public static void main(String[] args) {
//create an ArrayList object
ArrayList arrayList = new ArrayList();
//Add elements to Arraylist
arrayList.add("A");
arrayList.add("B");
arrayList.add("C");
arrayList.add("D");
arrayList.add("E");
System.out.println("Before Reverse Order, ArrayList Contains : " + arrayList);
/*
To reverse the order of all elements of Java ArrayList use,
static void reverse(List list) method of Collections class.
This method reverse the order of elements of specified list.
*/
Collections.reverse(arrayList);
System.out.println("After Reverse Order, ArrayList Contains : " + arrayList);
}
}
/*
Output would be
Before Reverse Order, ArrayList Contains : [A, B, C, D, E]
After Reverse Order, ArrayList Contains : [E, D, C, B, A]
*/
