Im getting error: cannot find symbol on my Inheritance Project Module Assignment

C:\Java Project Modules\Practice>javac BicycleTest.java
BicycleTest.java:12: error: cannot find symbol
bm.BMXState();
^
symbol: method BMXState()
location: variable bm of type BMX
1 error

C:\Java Project Modules\Practice>javac BicycleTest.java
BicycleTest.java:12: error: cannot find symbol
bm.BMXState();
^
symbol: method BMXState()
location: variable bm of type BMX
1 error

C:\Java Project Modules\Practice>

Thanks so much it worked ...I

try saving the BicycleTest.java file in bin folder of jdk...and then execute the file via that directory extension:
eg: C:\program files\java\jdk1.7.0\bin javac BicycleTest.java