Do you know what Java allows you to use as a variable name?

What about the number declarations, do you know if it’s possible to use ‘_’ or letters such as ‘d’, ‘f’, ‘D’ or F?

Do you know the Java for looping in details?

If not or if you know all that, try out this Java Challenger and be ready to use the full power of Java!

Get the code of the Java Challengers and run your own tests: https://javachallengers.com/code