If the element is a primitive type.

 

import java.util.Arrays;

public class Main {
  public static void main(String[] argv) throws Exception {

    // Create an array with an ordered list of numbers
    int[] sortedIntArray = new int[] { 1, 2, 3, 5, 7 };

    // Search for 6
    int index = Arrays.binarySearch(sortedIntArray, 6);
    System.out.println(index);
  }
}

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If the element is a primitive type. : Arrays « Collections Data Structure « Java

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