@burcinc-- If you don't have enough cucumbers for canning and need to wait a day or two for more, you can keep the cucumbers fresh and crisp while the new ones arrive by keeping them in brine. You just need a cup of salt for eight cups water for the brine. Keep the cucumbers in there and when you have enough, go ahead and can them.
You also have to make sure that you are not putting too much salt in the can or that you're not cooking the pickles for too long. Otherwise you might end up with mushy and extremely salty pickles that are unpalatable.