how to add class-path for executing java?

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http://www.ubuntux.org – HI every 1| ----------can u pls tell how to set class-path--------- I tried in the followind manner,but its not working for me 1)ubntusr@ubntusr:~$ su Password: 2)root@ubntusr:/home/ubntusr# export $PATH ---------> checking the PATH bash: export: `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games': not a valid identifier 3)root@ubntusr:/home/ubntusr# export PATH=/home/ubntusr/Android/java_ee_sdk-5_07-linux.bin ;$PATH /home/ubntusr/Android/java_ee_sdk-5_07-linux.bin: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory 4)root@ubntusr:/home/ubntusr# export $PATH -------> I m checking wt s there in PATH var after adding java path bash: export: `/home/ubntusr/Android/java_ee_sdk-5_07-linux.bin': not a valid identifier 5)root@ubntusr:/home/ubntusr# clear ----> not working Command 'clear' is available in '/usr/bin/clear' read more (Distributions)