throw io exception java
public static void foo() throws IOException {
// some code here, when something goes wrong, you might do:
throw new IOException("error message");
}
public static void main(String[] args) {
try {
foo();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}importance of throws keyword in java
Throws statement is used at the end of method signature to indicate that
an exception of a given type may be thrown from the method.
The main purpose of throws keyword is to delegate responsibility of
exception handling to the caller methods, in the case of checked exception.
In the case of unchecked exceptions, it is not required to use throws keyword.
We can use throws keyword only for throwable types otherwise compile time error
saying incompatible types.
An error is unchecked, it is not required to handle by try catch or by throws.
Syntax : Class Test{
Public static void main(String args[]) throws IE{
}}
The method should throw only checked exceptions and subclasses
of checked exceptions. It is not recommended to specify exception
superclasses in the throws class when the actual exceptions thrown in
the method are instances of their subclass.Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
