Mis on unchecked erandite eesmärk programmeerimises?

Java's unchecked exceptions are runtime exceptions (RuntimeException and its subclasses) that do not require mandatory handling or declaration in the method signature.

Purpose of unchecked exceptions:

• Used for errors that are usually caused by programming mistakes, such as NullPointerException, IllegalArgumentException.
• Allow the code to avoid cluttering with checks and exception handling that are not expected to be recovered.
• Facilitate development when the exception signals incorrect use of API or logic.

Example:

public int divide(int a, int b) {
    if (b == 0) {
        throw new IllegalArgumentException("Divisor cannot be zero");
    }
    return a / b;
}

Here, IllegalArgumentException is an unchecked exception, and the method is not required to declare it in throws. This indicates incorrect usage of the method.