Bash: kill with pipe

Question

Trying to kill very process related to Java. Is there a way to use pipe for it? I have tried

ps -e|grep "java"|kill

and

ps -e|grep "java"|xargs kill

Neither works.

Answer 1

pgrep is the right tool for grepping processes:

kill $(pgrep -f java)

the -f flag in pgrep is for matching against the full command line used to execute a process.

Answer 2

There is, but this is easier (presuming your system has killall):

killall java