Whether checked or unchecked exception must be used to handle any run time error? code example
Example: Unchecked exception
All subclasses of RuntimeException are called unchecked exceptions.
These are unchecked exceptions because compiler does not checks if a method
handles or throws exceptions. Program compiles even if we do not catch the
exception or throws the exception. If an exception occurs in the program,
program terminates. It is difficult to handle these exceptions
because there may be many places causing exceptions.
Example :
1) Arithmetic Exception
2) ArrayIndexOutOfBoundsException
3) ClassCastException
4) IndexOutOfBoundException
5) NullPointerException
6) NumberFormatException
7) StringIndexOutOfBounds
8) UnsupportedOperationException