RuntimeException
It is an unchecked exception derived from Exception. It comprises of a big bunch of subclasses and these all are known as unchecked exceptions like ArrayIndexOutOfBoundsException, ArithmeticException, NumberFormatException, ClassCastException etc. Following is the hierarchy. Object –> Throwable –> Exception –> RuntimeException Complete exception hierarchy is available at Hierarchy of Exceptions – Checked/Unchecked Exceptions. As it …