🚀 Programming Example

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

👁 17 Views

💻 Practical Program

📘 Step Learning

Learn this program step-by-step with algorithm, source code, output and detailed explanation.

📌 Information & Algorithm

Given Input:

Enter value to search: 30

Expected Output:

Value found at index 2

💻 Program Code

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");
        }
    }
}

📘 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.

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.