Answer / ranganathkini

The Runtime(along with the System class) provide system
level functionality to Java applications.

The facilities of these classes are not necessarily portable
across host operating system and may need to be recompiled
when porting.

Some of the facilities provided are:
1. Reading from the keyboard as input
2. Writing to console output
3. Interaction with JVM process for event notification, or
information such as free memory, etc
4. Reading/writing system properties/environment variables
5. executing other programs from within java apps

Answer / puneet

the instance of this class stored the environmental
information where the app is running and gives you few
mathod to work with JVM and to get information from it and
may be to hault it and stop it from working too and caling
few processes on the system where the app is running.

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