How does an exception propagate in the code?

 In Java, an exception is an object that is thrown at runtime to signal that an error has occurred. Exceptions are used to indicate that a problem has occurred, and to allow the program to handle the error and recover from it.

When an exception is thrown, it propagates up the call stack until it is caught by an exception handler. An exception handler is a block of code that is designed to handle a particular type of exception.

Here is an example of how an exception might propagate in a Java program:

void method1() { method2(); } void method2() { method3(); } void method3() { throw new MyException(); }

In this example, the method3 method throws an exception of type MyException. This exception will propagate up the call stack, causing the method2 method to terminate and the method1 method to be invoked. If there is no exception handler for MyException in the method1 method, the exception will continue to propagate up the call stack.

If the exception reaches the top of the call stack and is not caught by any exception handler, the program will terminate with an error. It is important to include appropriate exception handling in your code to handle exceptions and prevent the program from crashing.