If statement not equal to

Question

import java.util.Scanner;
public class RockPaperScissors
 {
public static void main (String[] args)
{
    Scanner scan = new Scanner (System.in);
    System.out.println("Player 1: Choose rock, paper or scissors: ");
    String Player1 = scan.next().toLowerCase();
    System.out.println("Player 2: Choose rock, paper or scissors: ");
    String Player2 = scan.next().toLowerCase();
    System.out.println ("Player 1 chose " + Player1);
    System.out.println ("Player 2 chose " + Player2);

    if (Player1.!equals("rock" + "paper" + "scissors")
    {
        System.out.println ("Please insert either Rock Paper or Scissors!);
    }
    if (Player1.equals(Player2))
    {
        System.out.println ("Its a tie!");
    }
    if ((Player1.equals("rock")) && (Player2.equals("paper")))
    {
        System.out.println ("Player 2 wins!");
    }
    else if ((Player1.equals("paper")) && (Player2.equals("rock")))
    {
        System.out.println ("Player 1 wins!");
    }
    if ((Player1.equals("scissors")) && (Player2.equals("paper")))
    {
        System.out.println ("Player 1 wins!");
    }
    else if ((Player1.equals("paper")) && (Player2.equals("scissors")))
    {
        System.out.println ("Player 2 wins!");
    }
    if ((Player1.equals("rock")) && (Player2.equals("scissors")))
    {
        System.out.println ("Player 1 wins!");
    }
    else if ((Player1.equals("scissors")) && (Player2.equals("rock")))
    {
        System.out.println ("Player 2 wins!");
    }


}

}

I have made a simple Rock Scissors Paper game, however I want to implement validation so the user will be notified if they enter anything other than Rock Paper Scissors. I had a go with .!equals however I'm getting an error saying <identifier> expected.

Thanks!

Answer 1

Wrong syntax:

Player1.!equals

change to:

!Player1.equals