In Java, custom exceptions are user-defined exceptions that can be created to handle specific application errors. They provide a way to give a clearer and more meaningful message to users of the application, allowing for better error management. Here’s how to create and use a custom exception in a simple way.
// Custom Exception Class
public class MyCustomException extends Exception {
public MyCustomException(String message) {
super(message);
}
}
// Class that uses the custom exception
public class Example {
public static void main(String[] args) {
try {
throw new MyCustomException("This is a custom exception message.");
} catch (MyCustomException e) {
System.out.println("Caught the exception: " + e.getMessage());
}
}
}
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?