Selgitage, mis on töötlemata erandid programmeerimiskeeles

In Java, unchecked exceptions are those that do not require mandatory catching or declaration in the method signature with throws. They inherit from the class RuntimeException.

Main features of unchecked exceptions:

• The compiler does not force the programmer to handle or declare them.
• They usually arise from programming errors, such as NullPointerException, ArrayIndexOutOfBoundsException.
• They can be caught, but it is not mandatory.

Example:

public void divide(int a, int b) {
    int result = a / b; // if b == 0, an ArithmeticException (unchecked) will be thrown
}

Here, ArithmeticException is an unchecked exception that can occur at runtime, but it is not required to be caught.