A simple login program that is written in Java programming language.

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Program Listing
import java.util.Scanner;

public class Simple_Login {
  
 static final String CorrectPassword = "admin";
  static final int MaxLoginAttempts = 3;
  
	public static void main (String[] args) {
    boolean loggedIn = false;
    int logginAttempts = 0;

    System.out.println("\n");
    System.out.println("\tSimple Login in Java");
    System.out.println("\n");
    try(Scanner scanner = new Scanner(System.in))
    {

      while(!loggedIn && logginAttempts < MaxLoginAttempts) {
        System.out.print("Password: ");
        String input = scanner.next();
        logginAttempts++;
        if(input.equals(CorrectPassword))
          loggedIn = true;
      }
      System.out.println("\n");
      if(loggedIn) 
        System.out.println("\tLogin successful");
      else
        System.out.println("\tLogin failed");
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
	}
}

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