Example of Arrays.binarySearch in Java
May 18, 2013
Arrays.binarySearch searches the element in the given array by binary search algorithm. As an input Arrays.binarySearch takes the sorted
array and the key. Start and last index argument is optional.
BinarySearchDemo.java
package com.util;
import java.util.Arrays;
import java.util.List;
public class BinarySearchDemo {
public static void main(String[] args) {
//with integer data
int[] intArr={1,2,3,4,5};
int index= Arrays.binarySearch(intArr, 0, 4,3);
System.out.println(index);
//with String data
String[] strArr = {"ABC","EFG","HIJ","KLM"};
index = Arrays.binarySearch(strArr,"HIJ");
System.out.println(index);
}
}
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