Как удалить последние буквы? Java

 Scanner scanner = new Scanner(System.in); 
		System.out.println("Email generator, enter your last name"); 
		String lname = scanner.nextLine(); 
		System.out.println("Then your first name"); 
		String name = scanner.nextLine(); 
		System.out.println("Enter your department"); 
		String depart = scanner.nextLine(); 
		System.out.println("Enter your company"); 
		String comp = scanner.nextLine(); 
		String mail = lname+name.toLowerCase()+"@"+depart.toLowerCase()+comp.toLowerCase()+".com"; 
		System.out.println(mail);