didn’t work

first i had much trouble getting the jar command to work but after it did i did everything instructed, not sure about the sql files though. i cpied just one file with the .sql extension. anyway on redhat from command prompt here is the output:
[root@orcl libexec]# ./DbCheck.java -H 10.1.1.247 -s orc1
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
import: unable to open X server `’.
./DbCheck.java: line 12: public: command not found
./DbCheck.java: line 15: syntax error near unexpected token `(‘
./DbCheck.java: line 15: ` public DbCheck()’