Java throws keyword

Throws Keyword In Java

A throws clause lists the types of exceptions that a method might throw.

This is necessary for all exceptions, except those of type Error or RuntimeException, or any of their subclasses.

All other exceptions that a method can throw must be declared in the throws clause.

If they are not, a compile-time error will result.

Now we will see an example -

Example -

// Web designing house

// Online Promotion House

class ThrowsDemo {
static void throwOne() throws IllegalAccessException {
System.out.println("Inside throwOne.");
throw new IllegalAccessException("demo");
}
public static void main(String args[]) {
try {
throwOne();
} catch (IllegalAccessException e) {
System.out.println("Caught " + e);
}
}
}

Output -

The sample output would be -

inside throwOne
Caughtjava.lang.IllegalAccessException: demo