Javac problems file not found,source etc command prompt

Question

please need help

Answer 1

maybe you are in wrong directory or class name is not correct. or javac is not installed.

Answer 2

maybe you are in wrong directory or class name is not correct. or javac is not installed.

Answer 3

$ javac -version
if it prints your version of jdk then it is installed otherwise you need to put the path of your jdk in environment variables.

Answer 4

yeah i already installed javac

Answer 5

but how to know if javac installed

Answer 6

please i need help please