I've got a java project in which I must replace all v's(big or small) with ag',r and replace all m's(big or small) with ssad, all g's(big or small) with jeb..w and all b's(big or small) with dug>?/. I'm stumped on what to do. I know how to normally replace chars but how do you replace a letter(big or small) with more than 1 letter? If you could help me get started I'd appreciate it greatly. Thanks. I already know what the Tester class has to be but the Crypto class is what I'm having major problems with. Maybe it's something obvious that I'm just not seeing so if you could give some insight or help me get started, as I mentioned before, I'll be highly appreciative.