How to compile my java?

How i compile java? when i open javac, it closes in less than a second...

Make sure that , the CLASSPATH and PATH variables are set in a proper way in Environmentvariables in your system if you are using WINDOWS.
CLASSPATH=%JAVA_HOME%/lib;
PATH=%JAVA-HOME%/bin;
then you have to check in commandprompt by simply typing 'javac'.
if you get the Options, then it is working properly.
hope this may help you.
surendra babu

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