What are exceptions in Java Programming?
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Java consists of two types of build in exceptions.
Checked exception These exception are the object of the Exception class or any of its subclasses except Runtime Exception class.
Unchecked exception These Exception arises during run-time ,that occur due to invalid argument passed to method.
Checked exception :=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.
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
Following are the list of various checked exception that defined in the java. lang package..
ClassNotFoundException This Exception occurs when Java run-time system fail to find the specified class mentioned in the program.
Illegal Access Exception This Exception occurs when you create an object of an abstract class and interface
Instantiation 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
Following are the list of various Unchecked exception that defined in the java. lang package
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.
Arithmetic Exception These Exception occurs, when you divide a number by zero causes an Arithmetic Exception
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
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