How will I include a Java jar file when compiling a Java class and running the Java file from the command console? -

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i have small java file interacting postgresql database, i've downloaded drivers , in file import org.postgresql.driver.

in command console type javac myfilename.java ; compiles run java myfilename , throws error saying can not find org.postgresql.driver files.

so how import jar when run file or when compile file not sure when import should take place?

compile:

javac -cp ".:postresql.jar" -d . myfilename.java

run:

java -cp ".:postresql.jar" myfilename

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