Naming

It is a social convention¹ that local variables be named likeThis.

That is if their name is one word, that word should be in lowercase.

String apple = "Red Delicious";

If it is multiple words, the first word should be lowercase and the others should start with a capital letter.

This convention is called camelCase because the capitals looks like the humps on a Camels back.

Just like proper formatting, sticking to this style will increase your chances of someone online being able to help you with your code.