How to set Java options in Linux?

Dear all, I'm using Ubuntu, Java version is 1.6.0.3
I want to run Java with some options changed, such as this in command line:
java -server -Xms128m -Xmx512m -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=11.40.5.62 -classpath . HelloWorld
This works well. However, I want to set the options "-server -Xms128m -Xmx512m -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=11.40.5.62" as my java default options so that I only have to use
java -classpath . HelloWorld
And also I want the options to work on my HelloWorld.war file. (This is what I need finally)
I changed catalina.sh in tomcat, but it seems like it doesn't help. Any suggestions? Thank you!!!

aiGrace wrote:
I want to set the options "-server -Xms128m -Xmx512m -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=11.40.5.62" as my java default options so that I only have to use
java -classpath . HelloWorldUse the *nix alias command
alias java="java -server -Xms128m -Xmx512m -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=11.40.5.62"

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aiGrace wrote:
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