private boolean checkInput() throws Exception{
		if(txtPetName.getText().compareTo("") == 0 || txtPetColor.getText().compareTo("") == 0 
				|| txtPetWeight.getText().compareTo("") == 0 || txtPetBreed.getText().compareTo("") == 0){
			throw new Exception("All fields are required");
		}
		
		return true;
	}