Computer Applications
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 2010
160 Likes
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
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