What is meant by checked exception and unchecked exception in java exception handling

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JAVA-AND-J2EE-06CS753--->View question


What is meant by checked exception and unchecked exception in java exception handling?

Exception handling-java

By:Aparna-Dasgupta

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Checked exceptions are checked at compile-time. It means if a method is throwing a checked exception then it should handle the exception using try-catch block or it should declare the exception using throws keyword, otherwise the program will give a compilation error. It is named as checked exception because these exceptions are checked at Compile time.
Unchecked exceptions are not checked at compile time. It means if your program is throwing an unchecked exception and even if you didn’t handle/declare that exception, the program won’t give a compilation error. Most of the times these exception occurs due to the bad data provided by user during the user-program interaction. It is up to the programmer to judge the conditions in advance, that can cause such exceptions and handle them appropriately. All Unchecked exceptions are direct sub classes of Runtime Exception class.

13priya

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