Sort a Vector with Collections.sort() in Java

Vector follows the insertion order, which means that the elements are displayed in the order in which they were inserted in Vector. This example shows how to sort Vector elements in ascending order using the Collections.sort(). The steps to follow are as follows:

1. Create Vector object
2. Add elements to Vector with the add(Object o)
3. Order Vector with Collection.sort(Vector v)
4. Show sorted Vector

import java.util.Collections; 
import java.util.Vector; 
public class VectorSort {
 public static void main(String[] args) {

 //create vector
 Vector vector = new Vector(); 
 
 //add elements to vector
 vector.add("d"); 
 vector.add("e"); 
 vector.add("a"); 
 vector.add("c"); 
 vector.add("f"); 
 vector.add("b"); 
 
 // default Vector maintains the insertion order
 System.out.println("Vector before sorting:"); 
 System.out.println(vector); 

 // Collections.sort() sorts items in ascending order
 Collections.sort(vector); 
 
 //Show elements after sorting
 System.out.println("Vector after sorting :"); 
 System.out.println(vector); 
 } 
}

Output:

Vector before sorting: 
[d, e, a, c, f, b]
Vector after sorting:
[a, b,  c, d, e, f]