Java Exception Handling(2025)

When JVM detects exception-causing code, it constructs a new exception-handling object by including the
the following information.

Name of Exception

Description of the Exception

 Location of Exception.

After the creation of an object by JVM, it checks whether there is an exception handling code or not. If there is
an exception handling code then the exception handles and continues the program. If there is no exception
handling code JVM gives the responsibility of exception handling to the default handler and terminates
abruptly.

What’s the Difference Between Exceptions and Errors in Java?

When you and I write Java programs, we often come across issues during execution. These issues are mainly divided into Exceptions and Errors—and it’s important for us to know the difference between the two so we can handle them correctly. Let me break it down for you:

Exception: These are issues that happen within our program—things we can predict and handle using try-catch blocks. They’re usually caused by bad input, logical bugs, or missing files. Exceptions occur due to programming mistakes or unexpected conditions. For example, if we try to read from a file that doesn’t exist, or divide a number by zero.

Error: This refers to serious issues that come from outside our program—like a problem in the JVM or the system itself. These are situations you and I usually shouldn’t try to catch or recover from in our code. Errors are usually caused by hardware failures, memory overflows, or other critical system-level faults. In most cases, we can’t fix them by writing Java code.