public class JavaAuthentication {

private static Scanner x;


public static void main(String[] args) {
// TODO code application logic here
String username = "rosario.dawson";
String password = "animal doctor";
String filepath = "credentials.txt";



verifyLogin(username, password, filepath);

System.out.println("Finish");
}


public static void verifyLogin(String username, String password, String filepath){
//Define the variables used in proving username/password
boolean found = false;
String tempUsername;
String tempPassword;

//this block searches for the filepath and defines a method of
//grabbing the temp username/password
try{
x = new Scanner(new File(filepath));
x.useDelimiter("[,\n]");

//While loop to find the next set of characters to set to temp username/password
while(x.hasNext() && !found){
tempUsername = x.next();
tempPassword = x.next();

//Compares the scanned files temp username/password to the user input username/password
if(tempUsername.trim().equals(username.trim()) && tempPassword.trim().equals(password.trim())) {
found = true;
System.out.println("Authentication successful!");
}
}

if(found == false){
System.out.println("Invalid Username and/or Password.");
}
x.close();
}
//Displays "Error!" is anything goes wrong in the method
catch(Exception e){
System.out.println("Error!");
}

}
}