How to search element in Short Array using Index in Java?

Declaration :

public static int binarySearch(short[] a, int fromIndex, int toIndex, short key)

1	public static int binarySearch(short[] a, int fromIndex, int toIndex, short key)

Explanation :

Purpose	The java.util.Arrays.binarySearch(short[] a int fromIndex int toIndex short key) method searches a range of the specified array of shorts for the specified value using the binary search algorithm. The range must be sorted before making this call.If it is not sorted the results are undefined.
Parameters	a ===> This is the array to be searched.
	fromIndex ===> This is the index of the first element (inclusive) to be searched.
	toIndex ===> This is the index of the last element (exclusive) to be searched.
	key ===> This is the value to be searched for.
Return Value	This method returns index of the search key if it is contained in the array else it returns (-(insertion point) - 1). The insertion point is the point at which the key would be inserted into the array; the index of the first element in the range greater than the key or toIndex if all elements in the range are less than the specified key.
Exception	IllegalArgumentException — if fromIndex > toIndex ,ArrayIndexOutOfBoundsException — if fromIndex < 0 or toIndex > a.length

Java Program : Example

Below example will explain java.util.Arrays.binarySearch() method.

package com.c4learn;
import java.util.Arrays;
public class ArrayDemo {
   public static void main(String[] args) {
		// Initialize unsorted short array
		short arr[] = { 5, 20, 15, 25, 10 };
		// Sort the array
		Arrays.sort(arr);
		// Print the sorted array list
		System.out.println("The sorted short array is:");
		for (short num : arr) {
			System.out.println("Array Element is " + num);
		}
		// Enter the value to be searched
		short val = 15;
		// entering range of index
		int returnV = Arrays.binarySearch(arr, 0, 5, val);
		System.out.println("The index of element 15 is : " + returnV);
	}
}

package com.c4learn;

import java.util.Arrays;

public class ArrayDemo {

public static void main(String[] args) {

// Initialize unsorted short array

short arr[] = { 5, 20, 15, 25, 10 };

// Sort the array

Arrays.sort(arr);

// Print the sorted array list

System.out.println("The sorted short array is:");

for (short num : arr) {

System.out.println("Array Element is " + num);

}

// Enter the value to be searched

short val = 15;

// entering range of index

int returnV = Arrays.binarySearch(arr, 0, 5, val);

System.out.println("The index of element 15 is : " + returnV);

}

Output of Program :

The sorted short array is:
Array Element is 5
Array Element is 10
Array Element is 15
Array Element is 20
Array Element is 25
The index of element 15 is : 2

The sorted short array is:

Array Element is 5

Array Element is 10

Array Element is 15

Array Element is 20

Array Element is 25

The index of element 15 is : 2

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