How would I create random characters

My (somewhat) tower-defense is almost done. But I’ve never asked how would I make random characters appear on your side when you buy the power-up?

can you show a snipet of code so I can help

I do have a snippet per say I just want a example of how if a button is pressed a random character is made on screen.

random.nextInt(MaxValue) is the random function. you can use that as a base