The Irish twins gave wacky renditions of Ghostbusters,We Will Rock You and Oops, I Did It Again on The X Factor before being voted offthe talent show.
VisualVM is a tool that provides a visual interface for viewing detailed information about Java applications while they are running on a Java Virtual Machine (JVM).
. Java Virtual Machine (JVM) is a type of a virtual machine or abstract computing machine which converts JAVA byte codes into a computer command. This computer command is the language used for computers to execute their functions.