Cant run *.class file Pls tell me step by step rum *.class with command prompt

Answer 1

Do you want a simple hello: public static void main(String[] args){...print here}

Answer 2

Command is "java classname" without extension (.class).

Answer 3

Ummm ok thnx for help but now I get Answer by myself
I forget to type 'cd..' >:( Really weird