From adf5ca9e256b409224153823664ad355f4048b8d Mon Sep 17 00:00:00 2001 From: Amrita8642 Date: Sat, 4 Oct 2025 18:18:12 +0530 Subject: [PATCH] Added Usernameavailibilitychecker.java --- Usernameavailibilitychecker.java | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Usernameavailibilitychecker.java diff --git a/Usernameavailibilitychecker.java b/Usernameavailibilitychecker.java new file mode 100644 index 0000000..9567f3d --- /dev/null +++ b/Usernameavailibilitychecker.java @@ -0,0 +1,30 @@ +import java.util.Scanner; + +public class UsernameChecker { + public static void main(String[] args) { + // Predefined usernames (like taken usernames in a database) + String[] takenUsernames = {"nisha123", "coderX", "javaPro", "admin", "guest"}; + + Scanner sc = new Scanner(System.in); + + System.out.print("Enter a username: "); + String username = sc.nextLine(); + + boolean available = true; + + // Check if username exists in the taken list + for (String taken : takenUsernames) { + if (taken.equalsIgnoreCase(username)) { + available = false; + break; + } + } + + // Show result + if (available) { + System.out.println("✅ Username is available!"); + } else { + System.out.println("❌ Username already taken. Try another."); + } + } +}