Exception in Java are classified on the basis of the exception handled by the java compiler.
List of Java Exception
Exception in Java are classified on the basis of the exception handled by the java compiler. Java consists of the following type of built in exceptions:
1.Checked Exception:- These exception are the object of the Exception class or any of its subclasses except Runtime Exception class. These condition arises due to invalid input, problem with your network connectivity and problem in database.java.io.IOException is a checked exception. This exception is thrown when there is an error in input-output operation. In this case operation is normally terminated.
List of Checked Exceptions-
Following are the list of various checked exception that defined in the java. lang package.
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.
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. |