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- import java.util.Scanner;
- public class LoginMitArrays {
- public static void main(String[] args) {
- // Login Daten 2Dimenionales Array
- String[][] loginData = {
- {"studi", "ms#so13"}, //Datensatz 0
- {"profs", "geheim"}, //Datensatz 1
- {"user3", "password3"} //Datensatz 2
- };
- // Login Setup
- Scanner scanner = new Scanner(System.in);
- Boolean isLoggedIn = false;
- // Abfrage: Benutzername
- System.out.println("\n\tEnter Username : ");
- String username = scanner.next();
- // Abfrage: Passwort
- System.out.println("\n\tEnter Password : ");
- String password = scanner.next();
- // Wenn Username + Password gleich, dann eingeloggt
- for (int i = 0; i < loginData.length; i++) {
- if (username.equals(loginData[i][0]) && password.equals(loginData[i][1])) { //>>> Strings werden mit ".equals" verglichen, nicht mit ==
- isLoggedIn = true;
- break;
- }
- }
- if (isLoggedIn) {
- System.out.println("\n\tAccess Granted! Welcome!");
- }
- else {
- System.out.println("\n\tInvalid Username and/or Password! Please try again.");
- }
- scanner.close();
- }
- }
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