xd

package javaapplication1;
import java.util.Scanner;

public class Main {
    static String[] un = new String[] {"a", "b", "c"};
    static String[] pw = new String[] {"a", "b", "c"};

    static String[] name = new String[] {"Adrian", "Ronan", "Lars"};
    static int[] age = new int[] {5, 6, 7};
    static char[] gender = new char[] {'M', 'F', 'O'};

    static boolean loop = true;

    public static void main(String[] args) {
        String usn = entry("ENTER USERNAME: ");
        String pwd = entry("ENTER PASSWORD: ");
        int v = validation(usn, pwd);
        display(v);
        }


    static String entry(String e) {
        Scanner sc = new Scanner(System.in);
        prt(e);
        String inpt = sc.nextLine();
        return inpt;
    }

    static int validation(String u, String p) {
        int b = 0;
        while (loop) {
            for (int a = 0;a<un.length; a++) {
                if (u.equals(un[a]) & p.equals(pw[a])) {
                   prt("Login Successful\n");
                   loop = false;
                   b = a;
                   break;
                }else if (u.equals(un[a]) &! p.equals(pw[a])){
                   prt("Login Failed\n");
                   loop = false;
                   break;
                }
            }
        }
        return b;
    }

    static void display(int i) {
        prt("Name: "+name[i]+"\n");
        prt("Age: "+age[i]+"\n");
        prt("Gender: "+gender[i]+"\n");
    }

    static void prt(String str) {
        System.out.print(str);
    }
}