What is exception handling in Java and its types?
What is exception handling in Java and its types?
The Exception Handling in Java is one of the powerful mechanism to handle the runtime errors so that normal flow of the application can be maintained. In this page, we will learn about Java exceptions, its type and the difference between checked and unchecked exceptions. What is Exception in Java
How do we handle checked exceptions in risky methods in Java?
As stated a little bit earlier, when we call these “risky” methods, we must handle the checked exceptions, and we may handle the unchecked ones. Java gives us several ways to do this: The simplest way to “handle” an exception is to rethrow it:
How do you handle internal errors in a method?
You can handle it with a try-catch-finally or a try-with-resource block. If you decide to specify the exception, it becomes part of the method definition, and the exception needs to be specified or handled by all calling methods. You should use an unchecked exception for internal errors that can’t be anticipated.
What are the different types of errors in Java?
Some example of errors are OutOfMemoryError, VirtualMachineError, AssertionError etc. Java provides five keywords that are used to handle the exception. The following table describes each. The “try” keyword is used to specify a block where we should place an exception code.
How to catch an error when LoadLibrary() fails?
If you need to catch an Error, do it in a narrow, controlled fasion. loadLibrary calls findLibrary () which would be helpful but it’s protected, your best bet is to write your own class extending ClassLoader. Class loader has a protected method called findLibrary () which will return the path to a library or null if it doesn’t exists.
What are checked and unchecked exceptions in Java?
The classes that directly inherit the Throwable class except RuntimeException and Error are known as checked exceptions. For example, IOException, SQLException, etc. Checked exceptions are checked at compile-time. The classes that inherit the RuntimeException are known as unchecked exceptions.
