Checked and Un Checked Exceptions

List of Checked Exceptions-

• represent invalid conditions in areas outside the immediate control of the program (invalid user input, database problems, network outages, absent files)
• are subclasses of Exception

Following are the list of various checked exception that defined in the java. lang package.

Exception
IOException
FileNotFoundException
ParseException
ClassNotFoundException
CloneNotSupportedException
InstantiationException
InterruptedException
NoSuchMethodException
NoSuchFieldException

Exception	Reason for Exception
ClassNotFoundException	This Exception occurs when Java run-time system fail to find the specified class mentioned in the program
Instantiation Exception	This Exception occurs when you create an object of an abstract class and interface
Illegal Access Exception	This Exception occurs when you create an object of an abstract class and interface
Not Such Method Exception	This Exception occurs when the method you call does not exist in class

2. Unchecked Exception:- These Exception arises during run-time ,that occur due to invalid argument passed to  method. The java Compiler does not check the program error during compilation. For Example when you divide a number by zero, run-time exception is raised.
Unchecked
ArrayIndexOutOfBoundsException
ClassCastException
IllegalArgumentException
IllegalStateException
NullPointerException
NumberFormatException
AssertionError
ExceptionInInitializerError
StackOverflowError
NoClassDefFoundError

Exception	Reason for Exception
Arithmetic Exception	These  Exception occurs, when you divide a number by zero causes an  Arithmetic Exception
Class Cast Exception	These Exception occurs, when you try to assign a reference variable of a class to an incompatible reference variable of another class
Array Store Exception	These Exception occurs, when you assign an array which is not compatible with the data type of that array
Array Index Out Of Bounds Exception	These Exception occurs, when you assign an array which is not compatible with the data type of that array
Null Pointer Exception	These Exception occurs, when you try to implement an application without referencing the object and allocating to a memory
Number Format Exception	These Exception occurs, when you try to convert a string variable in an incorrect format  to integer (numeric format) that is not compatible  with each other
Negative ArraySizeException	These are Exception, when you declare an array of negative size.