Q. Why Java is case sensitive?
Ans. Java is multi platform-> Platform Independent Language, so its used widely in very big softwares or games where multiple variables needed. To Differentiate among that huge no of variables,,Java is Case Sensitive.

Q. What is JVM?
Ans. Java Virtual Machine is the one which change the source code in to the code that is executable through the system so that this helps in making the Java Platform independent as this coude is accessible in any of the operating system