If Else Statement

import java.util.Scanner;
public class AnthonyWhiteProg4
{
  public static void main(String[] args)
  {
    Scanner stdIn = new Scanner(System.in);
    double speed;                                              // User entered value
    double distance;                                           // user entered value
    double stoppingDistance = speed * (2.25 + speed/21);       // number
 
    System.out.print("Enter your speed (mph): ");
    speed.stdIn.nextDouble();
    System.out.print("Enter your tailgate distance: ");
	stoppingDistance.stdIn.nextDouble();
 
    if(stoppingDistance==tailGatingDistance);
	{
	 system.out.println("Minor wreck");
	}
	if(stoppingdistance > tailGatingDistance);
	{
	 system.out.println("No problem");
	}
	 else 
	{
	 system.out.println("Major wreck");
    }
   } // end main
  } // end class