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# Java Examples - Vector Binary

## Problem Description:

How to execute binary search on a vector ?

## Solution:

Following example how to execute binary search on a vector with the help of v.add() method of Vector class and sort.Collection() method of Collection class.

    import java.util.Collections;
    import java.util.Vector;

    public class Main {
       public static void main(String[] args) {
          Vector v = new Vector();
          v.add("X");
          v.add("M");
          v.add("D");
          v.add("A");
          v.add("O");
          Collections.sort(v);
          System.out.println(v);
          int index = Collections.binarySearch(v, "D");
          System.out.println("Element found at : " + index);
       }
    }

## Result:

The above code sample will produce the following result.

    [A, D, M, O, X]
    Element found at : 1

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