Write a Java program to search a user-entered value in an array.

Java Fundamentals: Building Strong Foundations (Article) (Program)

8

Given Input:

Enter value to search: 30

Expected Output:

Value found at index 2

Program:

import java.util.Scanner;

class SearchUserInput {
    public static void main(String[] args) {
        int[] arr = {10, 25, 30, 45, 50};
        Scanner sc = new Scanner(System.in);

        System.out.print("Enter value to search: ");
        int key = sc.nextInt();

        boolean found = false;

        for (int i = 0; i < arr.length; i++) {
            if (arr[i] == key) {
                System.out.println("Value found at index " + i);
                found = true;
                break;
            }
        }

        if (!found) {
            System.out.println("Value not found");
        }
    }
}

Output:


                                        

Explanation:

The program compares the user-entered value with each element of the array one by one.
If a match is found, its index is displayed.