thank u Mr Richard West . but the cp option is not working , rather the following is working

[nabakishore@10 nabakishore]$ javac -d /home/nabakishore/ HelloWorld.java
[nabakishore@10...

when i'm typing "javac hello.java" in comandline after entering in that directory it is saying
bash: javac comand not found

but when i'm copying the hello.java into /java/bin/ and cd to ...

i'm using mandrake linux 10.0 . i have installed java compiler successfully. but when i'm trying to use the comand "javac" it is not working. the following are the typical outputs plz help.........
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