Once you know how to boil water, you can make hard boiled eggs along with many other things.
It’s simple. Choose one of your pans that can hold the number of eggs you want to boil in one layer on the bottom. Place the eggs in it (whole, not cracked) then add cool or cold water to the pan until it is about 1 inch higher than the eggs.
Place the pan of eggs and water on the stove and set it for high heat. Let the water boil. Set your timer for 15 minutes and let the eggs cook in the boiling water. Once done, turn off the stove and run cold water over the eggs to cool them down and stop the cooking. Remove the shell under running water.