Question 21Write a program to perform binary search on a list of integers given below, to search for an element input by the user. If it is found display the element along with its position, otherwise display the message "Search element not found".5, 7, 9, 11, 15, 20, 30, 45, 89, 97

Question

Accepted Answer

import java.util.Scanner;

public class KboatBinarySearch
{
    public static void main(String args[]) {
        
        Scanner in = new Scanner(System.in);
        int arr[] = {5, 7, 9, 11, 15, 20, 30, 45, 89, 97};
        
        System.out.print("Enter number to search: ");
        int n = in.nextInt();
        
        int l = 0, h = arr.length - 1, index = -1;
        while (l <= h) {
            int m = (l + h) / 2;
            if (arr[m] < n)
                l = m + 1;
            else if (arr[m] > n)
                h = m - 1;
            else {
                index = m;
                break;
            }
                
        }
        
        if (index == -1) {
            System.out.println("Search element not found");
        }
        else {
            System.out.println(n + " found at position " + index);
        }
    }
}Output

Arrays — Question 21

Question 21

Output