Where are the connection points to a dishwasher?

Plumbing is becoming my worst nightmare.  The plumber we were using either retired or has too much to do to call me back. Actually he never calls back, just shows up at my door a day or so after I leave a message and fixed the latest problem. This time he didn't call or come by so I found a handyman that is a whiz at plumbing to replace the crumbling pipes under the bathroom sink and to install a new kitchen faucet. I was thrilled to get all that done for a very reasonable price. Then the ancient dishwasher stopped working. That lead to pulling it out and discovering a disaster in plumbing and electrical issues hidden behind it.