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Write 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

Java

Java Arrays

ICSE

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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

BlueJ output of Write 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, 97BlueJ output of Write 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

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